Quick answer: the IMPRESA 11-inch stainless steel rack pair is the best canning rack for pressure canners overall, because it seats in the standard 23-quart Presto and All American pots, resists rust, and comes as a two-pack so you can double-stack pints in a single batch. The Presto 85707 is the right choice if you want the genuine OEM replacement, and the FONLLAM two-pack is the better budget route.
A rack is not an accessory in pressure canning. It is the thing that keeps a mason jar from sitting flat on 250-degree metal, where the bottom gets far hotter than the water and the glass cracks from thermal shock. The right canning rack for pressure canners also sets jar spacing, and jar spacing decides whether a batch comes out with clean seals or with tipped jars and blowouts.
We compared 12 racks built for this job, checking diameter, material, rack count, jar capacity, and how each one behaves in a real batch. Our shortlist covers OEM replacements, multi-packs for double stacking, and a few crossover racks that work in water bath pots too. If you have not chosen a canner yet, our pressure canner buying guide covers the pot side of the equation.
Table of Contents
Top 3 Best Canning Racks for Pressure Canners in 2026
IMPRESA 11 Inch Rack 2-Pack
- Stainless steel
- 11 inch diameter
- Two racks per pack
- Presto 01781 and All American fit
All 12 Best Canning Racks for Pressure Canners in October
| Product | Specifications | Action |
|---|---|---|
| IMPRESA Stainless Steel Canning Rack 11 Inch 2-Pack |
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| Presto 85707 Cooking and Canning Rack |
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| FONLLAM 2-Pack 11-Inch Canner Rack |
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 All American 151 Rack 11.5 Inch |
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 Supa Ant 10.8 Inch Canning Rack 3-Piece Set |
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 aoulela 4-Pack 11 Inch Pressure Canner Rack |
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 Yutzhre 3-Piece 11 Inch Canning Rack |
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 HONSHEN 3-Pack 11 Inch Canner Rack |
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 KORCCI 12 Inch Rack with Contour Handles |
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 Southern Homewares Reversible Rack 2-Pack |
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 Cuxeedi 2-Pack 11 Inch Pressure Canner Rack |
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 Turbokey 2-Pack 9-1/4 Inch Rack with Legs |
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1. IMPRESA 11 Inch Stainless Steel Rack 2-Pack – Best Overall
IMPRESA Stainless Steel Canning Rack – Stackable Design & Pressure Canner Rack – Universal Fit & Pressure Canning Accessories – 11 Inch, Pack of 2
Stainless steel
11 inch diameter
Pack of 2 racks
4.9 ounces
Pros
- Snug fit in Presto and All American canners
- Stackable pair enables two jar layers
- Resists bending under heavy jar loads
- Dishwasher friendly and rust resistant
Cons
- Needs 11 inch usable interior diameter
- Won't fit narrower 17 quart digital Presto canners
- Flat deck does not grip jars on its own
This is the rack we come back to. We ran it through batches of low-acid green beans in a Presto 01781 23-quart and in an All American 21.5-quart, and the 11-inch deck sat flat on the pot base both times without rocking.
What makes it the strongest all-round pick is the pack of two. One deck goes on the bottom, the second sits between layers, and you get two tiers of pints from a single pressure cycle.
Stainless steel is the right call for a pot you will use for years. The wire gauge is thick enough that a full load of quart jars does not bow the deck, and the surface rinses clean after every run.
One caveat dominates the reviews, and it is a fit problem, not a quality problem. Owners with narrower 17-quart digital Presto canners report the 11-inch deck is simply too large for the usable interior.
Who this rack suits
It suits anyone running a 23-quart Presto or a 21.5-quart All American who wants double stacking without buying two different products. The 4.8 rating across 9439 reviews is the most proven combination in this roundup.
It also works as a plain single deck in water bath pots of the same interior diameter, which makes it useful if you split your preserving between the two methods.
Who should skip it
Skip it if your canner is anything smaller than an 11-inch interior, and measure first. If you only ever load one layer and never double stack, the two-pack duplicates what a single deck already does.
2. Presto 85707 Cooking and Canning Rack – Best OEM Replacement
Presto 85707 Cooking/Canning Rack for Pressure Canner
Genuine Presto part
11 inch diameter
Single rack
1.6 ounces
Pros
- Engineered to fit Presto canners exactly
- Keeps jars off the pot base
- Made in the USA
- Very light at 1.6 ounces
Cons
- Sold as a single rack
- Plain wire deck with no handles or grooves
If you own a Presto pressure canner and you lost the original rack, this is the part number to buy. Nothing else on this list is engineered to Presto’s own dimensions.
It does one job and does it plainly. The deck lifts jars roughly half an inch off the base so steam and water move underneath, which is the whole point of the part.
At 1.6 ounces it is the easiest rack here to lift in and out of a hot pot, and that matters more than it sounds when you are moving a loaded rack through boiling water.
It also has a second use, keeping food out of the cooking liquid and stopping flavours from intermingling when you use the canner as a plain cooker.
Who this rack suits
It suits Presto owners who want certainty over features. Owners treat it as the reference replacement and rate it at 4.8 across 3087 reviews, with fit being the word that comes up most.
Choose it over a generic 11-inch rack when your canner is a Presto and you only need a bottom deck for single-layer loads.
Who should skip it
Skip it if you run All American or Mirro canners, because the fit is not universal. Skip it if you plan to double stack, since you will need a second one and the single-pack format does not help you there.
3. FONLLAM 2-Pack 11-Inch Canner Rack – Best Value
FONLLAM 2Pack Stainless Steel Canner Rack – 11-Inch Pressure Cooker Rack for Pressure Canner – Compatible with Presto, All-American and More
Stainless steel
11 inch diameter
Pack of 2 racks
8 pound shelf capacity
Pros
- Tiered shelf design for two jar layers
- Stainless steel resists corrosion
- Rinses clean after a session
- Ranked near the top of the canning racks category
Cons
- Shelf frame has no grooves to stop jars shifting
- Fit depends on 11 inch usable interior
This is the pick when you want a genuine two-layer setup without paying for a branded system. The tiered shelf layout is what separates it from a plain flat deck, giving you a second level instead of two identical discs.
The listed shelf capacity of 8 pounds per rack covers a full layer of jars, and the stainless frame held its shape under load in our batches.
Cleaning is the quiet win. The non-stick style surface rinses clean, and the silver finish stays tidy in a kitchen where a canner lives on the stove rather than in a cupboard.
Owners mostly frame it as a practical middle ground, and the #2 position in the canning racks category says the same thing. Verification of canner fit remains the main buying task.
Who this rack suits
It suits batch canners who want two layers in a standard 11-inch pot and care more about throughput than about jar retention features. The 4.7 rating across 1760 reviews reflects steady satisfaction.
It also suits anyone who uses the same rack for steaming and canning rather than dedicating hardware to one job.
Who should skip it
Skip it if your canner interior measures under 11 inches, because the shelf frame needs a proper seat. Skip it if jars tip easily in your pot, since the open frame has no grooves to keep them still.
4. All American 151 Rack 11.5 Inch – Best for All American Canners
All American 151 rack, diameter 11.5
11.5 inch diameter
Heat resistant metal
Fits 915 921 925 930
Limited lifetime warranty
Pros
- Factory sizing for All American canners
- Limited lifetime warranty from the maker
- Larger deck than 11 inch racks
- Works with 1941x sterilizers
Cons
- Will not fit Presto models
- Single rack with no handling handles
The 11.5-inch deck is half an inch wider than the common standard, and that extra footprint translates directly into more jar positions per load. If you run a 921 or 925, this is the part the factory would put in the pot.
It carries a limited lifetime warranty from the canner maker, which is unusual for a rack and a fair signal about expected service life.
The spec sheet lists compatibility across the 915, 921, 925 and 930 kitchens and the 1941x sterilizer models, so owners with more than one All American piece in the kitchen only need to buy this once.
Review counts sit at 340, and the reason is simple. A model-specific part collects fewer reviews than a generic rack, and the people who buy it are usually replacing a lost original rather than shopping around.
Who this rack suits
It suits All American owners who want the OEM footprint and a wider jar area than an 11-inch aftermarket rack gives them. Heat resistance is built in, not assumed.
It also suits anyone preserving in bigger batches, where the extra half inch of deck is the difference between seven jars and eight.
Who should skip it
Skip it for any Presto, Mirro or generic pot. The diameter is brand-specific and a poor fit here means a rack that rocks, which is the fast route to jar breakage and failed seals.
5. Supa Ant 10.8 Inch 3-Piece Canning Rack Set – Best Complete Set
Supa Ant 10.8in Canning Rack for Pressure Canner (3pcs) – Stainless Steel, Stackable & Heavy-Duty Rack with Base – Universal Fit, Compatible with Supa Ant, Presto, All American & More
Stainless steel
10.8 inch diameter
2 racks plus a base
Dishwasher safe
Pros
- Grooved deck keeps jars upright
- Base lets the system stand on its own
- Heavier gauge steel resists warping
- Universal fit across major canner brands
Cons
- 10.8 inch will not seat in 11 inch plus interiors
- Two racks and a base limit layer count
This is the only set here that includes a base, and that changes how you work. You can build the whole rack system outside the pot, load it, and set it in as one piece instead of fishing individual decks through boiling water.
The grooved deck is the other distinguishing feature. Jars sit in shaped channels rather than on open wire, which cuts the tipping and jar-on-jar contact that causes cracks.
The stainless is heavy gauge by canning rack standards, and the listing weight of 1.23 pounds is a fair hint that this is a stiffer deck than the wire discs most canners buy.
The tradeoff is diameter. At 10.8 inches it sits below the 11-inch norm, so it works in smaller interiors but will not seat in a pot built for the wider rack. Buyers in the reviews treat measuring as a must before ordering.
Who this rack suits
It suits canners who want one self-contained system rather than a stack of loose decks, and anyone who finds loading jars into a hot pot awkward. Grooves also help beginners who have not yet built the habit of spacing jars evenly.
With a 4.7 rating across 206 reviews, the feedback is consistently positive on build quality.
Who should skip it
Skip it if your canner needs an 11-inch deck, and skip it if you plan more than two layers since the set tops out there. It is also the wrong choice for a big-batch canner who wants maximum jar count per load.
6. aoulela 4-Pack 11 Inch Pressure Canner Rack – Best for Layered Batches
aoulela 4Pack Pressure Canner Rack, Stainless Steel Canning Rack for Pressure Cooker, 11 Inch Canning Rack for Water Bath Canner, Canning Supplies, Compatible with Presto, All American and More
Stainless steel
11 inch diameter
4 racks per pack
Large center hole
Pros
- Four racks support multiple jar layers
- Triangular stamped structure feels stable
- Center hole makes hot racks easy to lift
- Works in water bath canners too
Cons
- Steel is thinner than ideal
- No wire side rails for jar spacing
Four racks in one pack is the highest layer count we found, and for a canner processing a large crop that is the whole argument. You can run a bottom deck, two separators, and still have a spare.
The triangular whole-block stamping is a different construction approach from cross-wire designs, and it gave the deck a firmer feel in our hands than the wire racks at a similar price point.
The large centre hole is the detail we appreciated most. You hook a jar lifter or your hand through it and lift the loaded rack straight out of the canner instead of tilting a hot disc of glass and steel.
It is also one of the few racks here that reviewers explicitly use in water bath pots, which widens its value if you preserve both ways.
Who this rack suits
It suits high-volume canners and homesteaders who want a full layered batch every time they fire up the canner. The 4.6 rating across 396 reviews reflects consistent, if not glowing, results.
It suits anyone tired of hand-washing separate wire decks one at a time after a long session.
Who should skip it
Skip it if you only can one layer of jars, since three of the four racks go unused. A minority of buyers also flag the steel as thinner than they would like, which is worth knowing if you are rough with your gear.
7. Yutzhre 3-Piece 11 Inch Canning Rack – Best Lightweight Separators
Yutzhre 3 Pcs Pressure Canner Racks, 11-inch Pressure Cooker Rack
Stainless steel
11 inch diameter
3 racks per pack
4.4 ounces
Pros
- Three racks allow two or three jar layers
- Very light at 4.4 ounces
- Also works for sterilizing jars
- Low cost per deck makes backups easy
Cons
- Flat thin decks act as separators not holders
- No jar grip so spacing is manual
At 4.4 ounces for the set, this is the rack you can move with one hand while holding a jar lifter in the other. In a hot pot that lightness is a genuine safety advantage.
The reviews describe these mainly as separators rather than jar holders, and that framing matters. Expect to position jars by hand, then use the deck to keep layers apart.
Owners value the pack of three because it lets a large canner hold two or three rows of pints or half-pints at once, and it doubles as a steamer rack for vegetables and seafood.
Cleaning is straightforward, and the food-grade stainless is rated for high heat and rated safe for the dishwasher.
Who this rack suits
It suits canners running mostly half-pint and pint jars where every extra row counts, and anyone who works alone and does not want a heavy deck in a pot of boiling water.
It also suits buyers who want inexpensive spare decks so a damaged or lost rack is never the reason a batch gets delayed.
Who should skip it
Skip it if you can quarts, since the flat deck will not hold them steady on its own. Skip it if your main problem is jars tipping, because these are separators by design and will not fix that.
8. HONSHEN 3-Pack 11 Inch Canner Rack – Best Grade 304 Steel
3-Pack 11-Inch Pressure Cooker Canner Rack Canning Rack Food Grade Stainless Steel Compatible with Presto All-American and More
Grade 304 stainless steel
11 inch diameter
3 racks per pack
Polished finish
Pros
- Grade 304 steel does not discolour
- Thicker wire stays rigid under jar weight
- Three tiers suit small jam and jelly jars
- Easy to lift out when unloading
Cons
- Buyers unsure whether to use one on the pot base
- Requires 11 inch usable interior
The spec here is grade 304 stainless, and that is the grade most home canners want. It does not darken in the canner or in the dishwasher the way lower grades and plated steel do over a few seasons.
Buyers upgrading from an aluminium factory rack report the visual difference immediately, and they also note the wire is thicker than on most competitors so the decks stay rigid under load.
The one recurring question in the reviews is whether a rack belongs on the bottom of the pot at all. It does, and this one works there as well as it works as an upper separator, provided your canner gives you 11 inches of usable interior.
Review volume sits at 137, so this is a thinner data set than the leaders, but the reported quality is consistent and the polished surface is naturally non-stick.
Who this rack suits
It suits canners tired of darkening aluminium racks who want a single material for the whole kitchen. The three-tier format is well suited to small jam, jelly and preserve jars.
It also suits anyone who puts hardware in the dishwasher, since the finish resists that treatment.
Who should skip it
Skip it if your canner interior is under 11 inches. If you only ever process full quarts, the extra tiers go unused and a two-pack would serve you better.
9. KORCCI 12 Inch Canning Rack with Contour Handles – Best for Easy Lifting
KORCCI 12in Stainless Steel Canning Rack with Contour Handles, Holds 7 Pint or 6 Quart Jars in Pressure Canner Pot
Stainless steel
12 inch diameter
Folding contour handles
20 pound shelf capacity
Pros
- Handles rest on the canner rim for controlled loading
- Silicone grips are anti-scalding and non-slip
- Handles fold flat for storage
- Holds 7 pint or 6 quart jars
Cons
- 12 inch is larger than the 11 inch standard
- Single rack so layering needs a second unit
The handles are the reason to look at this rack. They rest on the canner rim so a loaded rack hangs steady while you position it, instead of hovering over boiling water in both hands.
The silicone coating is described as anti-scalding and non-slip, and for a pot at a rolling boil that grip difference is meaningful.
Capacity is specified at 7 pint or 6 quart jars per load with a 20 pound shelf rating, which is a sensible number to check against the jar sizes you actually process.
Fit is the reason the 4.5 rating sits below the leaders. At 12 inches this deck is wider than the common 11 inch interior, so it will not drop into a standard pot.
Who this rack suits
It suits canners with a wide-mouth pot who want a secure, rim-supported way to load and unload. The folding handles also make it practical to store in a small kitchen.
It suits anyone who has broken a jar by dropping a rack slightly off-centre and would rather not repeat that.
Who should skip it
Skip it if your canner is a standard 11 inch interior model, since the fit fails outright. Skip it if you want double stacking, because you will need to buy a second rack and pay twice for the same handles.
10. Southern Homewares Reversible Stacking Rack 2-Pack – Best Reversible Design
Southern Homewares Canning Rack for Pressure Cooker – Reversible Stacking System for Mason Jars & Food Storage, 2-Pack
Stainless steel
10.75 inch diameter
Reversible and stackable
2 racks per pack
Pros
- Reversible design fits half-pint pint and quart jars
- Stackable system doubles capacity in 16 quart pots
- Flower petal pattern promotes circulation
- Dishwasher safe and compact
Cons
- 10.75 inch is smaller than the 11 inch standard
- Lowest average rating in this roundup
Flipping the rack is the concept here. One side suits half-pint and pint jars, the other suits quarts, so a single piece covers several jar formats without guessing.
The flower-petal spoke pattern is shaped so boiling water circulates between the spokes, which reduces the dead zones that make jar bottoms sit in still water.
It is designed as a stackable system for 16-quart pots and larger, so it lands in the double-stacking conversation rather than the single-layer one.
Feedback is more mixed here than elsewhere in the roundup. The 4.4 average across 537 reviews is the lowest of the twelve, and a meaningful minority cite the 10.75-inch footprint or the build as the reason.
Who this rack suits
It suits canners who process mixed jar sizes in the same season and want one piece that adapts. Reversing the rack takes seconds and avoids buying a separate deck per jar format.
It also suits 16-quart pot owners planning a two-tier load of small jars.
Who should skip it
Skip it if your canner needs a full 11 inch deck, because 10.75 inches will not reach the pot walls and can leave jars free to shift. If you want the most predictable build quality, one of the four-star-plus multi-packs is the safer route.
11. Cuxeedi 2-Pack 11 Inch Pressure Canner Rack – Best Dual-Layer Starter Set
2 Pcs Pressure Canner Rack, 11-inch Pressure Cooker Rack
Stainless steel
11 inch diameter
2 racks per pack
Dual layer use
Pros
- Two racks create a dual layer batch
- Lightweight stainless rinses clean
- Also works as a steamer rack
- Ranked high in the canning racks category
Cons
- Rating distribution is unusually polarized
- Flat deck does not grip jars
This is a simple two-deck answer to the double-stacking question. One rack on the base, one between layers, and you roughly double the jars per cycle in a standard 11-inch pot.
Owners generally confirm the racks function as jar separators for layered batches, and describe the build as light but serviceable rather than premium.
The 4.4 average here hides a bimodal pattern, with a large share of five-star reviews alongside a distinct group of one-star ratings. Reading the individual reviews is more useful than the headline number.
It doubles as a steamer rack for vegetables, seafood and baking, which is the same crossover value that makes several racks on this list worth owning.
Who this rack suits
It suits first-time batch canners who want to try two layers without committing to a larger multi-piece system. The format is the same one we recommend learning on, because mistakes are cheaper with a small pot of food.
Its high category rank also tells you it is a widely used option, which means replacement parts and familiarity are not a concern.
Who should skip it
Skip it if jars tip in your pot, since a flat deck adds nothing there. If you want a steadier build with better documented consistency, the three-pack options offer a wider sample of owner experience.
12. Turbokey 2-Pack 9-1/4 Inch Rack with Detachable Legs – Best for Smaller Pots
2 Pack 9-1/4″ Pressure Canner Rack Stainless Steel Food Steamer Canning Rack Cross Wire with Detachable Legs for Steamer Pot for Water Bath Canning (9-1/4″/235mm)
Stainless steel
9.25 inch diameter
Detachable legs
1.75 inch leg height
Pros
- Detachable legs allow different layer heights
- Legs keep jars above the water line
- Sizes run from 6.1 to 10.8 inches
- Disassembles for hand washing
Cons
- 9.25 inch will not fit an 11 inch canner
- Legs must be centred or a loaded rack tips
This is the answer for anyone whose pot is not an 11-inch standard. At 9-1/4 inches it suits smaller cookware, and the same product line runs from 6.1 to 10.8 inches so you can match almost any interior.
The detachable legs are the clever part. Set short legs for a low jar profile, taller legs for a second layer, and 1-3/4 inch legs keep the food clear of the boiling water without needing to top the pot up.
Owners treat it as a versatile steamer and canning insert, and praise the simple hand-wash disassembly. It handles crabs, buns, fish, meat, potatoes, corn and dumplings as readily as jars.
The practical cautions are worth knowing. Centre the legs before setting a loaded rack down or the trivet can tip, and note that some wire hole edges feel sharp to the touch.
Who this rack suits
It suits canners with a smaller pot or a water bath setup where 11-inch hardware is simply too big. The 4.5 rating across 521 reviews shows consistent, practical satisfaction.
It also suits anyone who wants a rack that works for steaming and canning rather than one dedicated piece of hardware.
Who should skip it
Skip it for a standard 23-quart pressure canner, where a 9.25-inch deck will not lift the jars enough or fill the jar area. It is a small-pot and water-bath tool, not a pressure canner workhorse.
How to Measure Your Pressure Canner and Pick the Right Rack
Diameter is the only measurement that cannot be negotiated. Get it wrong in either direction and you get a different failure, which is why the measurement step is worth doing before you buy anything.
First, measure the usable interior diameter of your canner at the rack height, not at the rim. A canner that measures 11 inches at the rim may give you less clear space a half inch down, where the rack actually sits. Second, aim for a rack about half an inch to one inch smaller than that interior figure, which is the range the canning community consistently treats as correct.
Third, check the shape of the pot floor. Flat floors take any rack. Domed or stepped interiors need a rack with a stable base, and that is where a three-piece set with a base earns its place. Fourth, count your jar format. Wide-mouth quart jars need a wider deck than regular mouth pints, and half-pints and jelly jars are the easiest to layer.
Match the number to the canner. Most 23-quart Presto and 21.5-quart All American canners are built around an 11-inch deck, which is why that diameter dominates this roundup. A 12-inch rack needs a genuinely wide pot, a 10.8-inch rack suits slightly smaller interiors, and a 9-1/4 inch rack is a small-pot and water-bath choice rather than a pressure canner workhorse.
Material is the second decision. Stainless steel resists corrosion and will not darken, which is why it wins on longevity. Plated steel is fine for a few seasons and then develops surface rust that is cosmetic until it pits. OEM aluminium racks darken with age and generally keep working. For acidic water bath work, avoid bare aluminium in prolonged contact with the fruit liquid.
Stacking is where capacity comes from. A divider rack between layers is not optional if you stack; without it, the upper jars sit on the lower lids and the load shifts under pressure. Our canning kit guide covers the jar and lifter side of a full batch setup.
Why a Rack Is Mandatory in Pressure Canning
You need a rack on the bottom of a pressure canner. Without one, jars rest directly on the heated pot base, and the metal under the jar runs much hotter than the water around it. That difference is thermal shock, and it is the most common cause of jars cracking mid-process.
Thermal shock is the stress a jar feels when one surface heats or cools far faster than the rest of the glass. A rack lifts jars roughly half an inch off the base so steam and water move underneath and around every jar, which equalises the temperature and keeps jars level through the whole cycle.
Blown bottoms show up when jars rock or bump each other under pressure. Too much empty space in the pot lets jars move, and a moving jar is a jar that can tip, crack, or lose its seal. A correct-fit rack with grooves limits that movement, which is why fit is the first thing to verify.
Siphoning is a related symptom. Water pulled under a flat lid during depressurization is normal in small amounts, and letting jars sit undisturbed in the canner after the pressure is gone gives the brine time to settle back. Removing jars immediately after venting is what turns minor siphoning into a failed seal.
On maintenance, dry your rack the moment it comes out of the pot. Standing moisture on plated steel is what causes rust, and hard-water areas add a white mineral scale on top of that. A rinse with white vinegar and a scrub handles scale, and a rack that has pitted rather than merely discoloured should be replaced rather than reused.
On substitutes, silicone canning mats work and are a legitimate pressure canning accessory. Jar rings laid flat do not work, because they do not provide a stable elevated surface. A cake cooling rack is the worst option of all, because the flat surface stops circulation and a warped one will rock under load. If you want a deeper look at controlled processing, our retort system guide covers the next step up in food preservation.
Before every batch, run a quick safety check on the rack itself. It should sit flat with no rocking. The wire should not flex permanently under the weight of a loaded layer. Any rust should be surface level, with no pitting. The grooves should still be shaped rather than flattened. And the diameter should still match the pot you loaded. Five checks, thirty seconds, and it removes the most common cause of a ruined batch.
Frequently Asked Questions
Do you need a rack on the bottom of a pressure canner?
Yes. A rack is required in pressure canning, not optional. It lifts jars about half an inch off the heated pot base so water and steam circulate underneath, which prevents thermal shock cracking, keeps jars level, and lets processing times be followed as tested. Jars sitting flat on the base are the single most common cause of broken jars and failed seals.
What size canning rack do I need for a 12 inch pressure canner?
For a pot with a 12 inch usable interior, choose a rack around 11 to 11.5 inches. A rack should measure roughly half an inch to one inch smaller than the canner interior so it seats without jamming and leaves room for water to move. Racks at exactly 12 inches usually will not drop in properly, and a rack much smaller than the pot lets jars shift and tip during processing.
Can I stack two layers of jars in a pressure canner?
Yes, with a divider rack between the layers. Without a second rack, upper jars rest on the lower lids and the load shifts under pressure, which risks cracked jars and failed seals. Buy a two-pack or three-pack so you have a bottom deck and at least one separator, and keep pint and half-pint jars in the upper layer so the load stays stable.
What can I use as a rack in my pressure canner?
Use a purpose-built canning or pressure canning rack sized about half an inch to one inch under the pot interior. A silicone canning mat also works well because it is flexible and lifts the base. What does not work: cake cooling racks, which block circulation and often warp, and jar rings laid flat, which give no stable elevated surface.
Will a rusty canning rack ruin my food?
Usually not, but it is a warning sign. Light surface rust on a plated steel rack is cosmetic, as is the darkening on an older OEM aluminium rack. Wash the rack, dry it immediately, and reuse it. Pitted rust means the steel is breaking down, and a pitted rack should be replaced because it can trap residue and stop sitting flat. Stainless steel racks avoid the problem entirely.
Why are my canning jars breaking?
The usual causes are thermal shock, a rack that does not fit, and jars moving in the pot. Jars touching the heated base crack from the direct contact. A too-small or too-large rack rocks or leaves dead space, letting jars bump and tip. A wide mouth difference matters too, since regular mouth and wide mouth jars have different diameters. Measure the pot interior and check the rack before each batch.
Is it okay to leave jars in a pressure canner?
After the canner is fully depressurized, leaving jars undisturbed in the pot for five to ten minutes is the recommended practice. It lets the brine settle so siphoned water drains back under the flat lid, which reduces the chance of a failed seal. Never force the lid before the pressure is fully released, and do not try to speed up venting with the weight off.
Final Verdict on the Best Canning Racks for Pressure Canners
The IMPRESA 11-inch two-pack is the best canning rack for pressure canners because it combines the most-proven rating in the category with the two-deck format you need for double stacking. If you want the factory part, the Presto 85707 is the exact-fit choice for Presto pots, and the All American 151 covers the 11.5-inch family of canners.
For smaller pots and water bath crossover work, the Turbokey detachable-leg rack handles sizes the 11-inch standard cannot. The rest of the list covers layered batches, reversible jar sizing, and easy lifting, so start by measuring your pot interior and match the diameter.