The best water bath canners for beginners

A water bath canner has to do exactly two things, and both come from the National Center for Home Food Preservation. It must be deep enough that at least one inch of briskly boiling water covers the tops of the jars for the whole processing time, and it needs a rack so jars sit off the base and water circulates underneath. Everything else — material, brand, price, color — is comfort and durability.

That makes this an unusually easy category to shop in, and it is why we have not padded the list. Below are the pots we would point a first-time canner at, why each one earns its place, and the one to walk past.

How we screened these

We have not used any of these canners, and we are not going to pretend otherwise. What we did instead was check each one against the published NCHFP requirements, pull the specifications from the manufacturer's own page rather than another roundup, and do the stove-fit arithmetic where a base diameter is published. The full method is on how we pick.

• Depth — can it cover a quart jar with a full inch of briskly boiling water?
• Rack — does it come with one, or do you need to buy one separately?
• Published diameter — is there a number you can check against your stove element, or does the manufacturer leave you guessing?
• Weight when full — a canner you cannot lift is a canner you will not use.
• Whether it also pressure cans — because one pot that does both changes the value calculation entirely.

The decision, in one paragraph

If you are canning jam, pickles, fruit and acidified tomatoes and that is the whole plan, buy the enamel canner. If you already know you will want green beans or stock within a year, buy the Presto 23-quart instead — it water baths pints and half-pints and pressure cans everything, so you skip owning two pots. If you have a small element or a glass top, read will it fit your stove before you buy either.

The measurement that decides it

The most common reason a new canner goes back is not quality — it is that it is too wide for the stove. The NCHFP is specific: on an electric range "the canner should be no more than 4 inches wider in diameter than the element on which it is heated." A wider canner heats unevenly, and the jars around the outside may never hold temperature for the full processing time.

Household electric elements are commonly 6 to 9 inches, which caps you at 10 to 13 inches of canner. Two things make this harder than it should be: most canner manufacturers do not publish a base diameter at all, and the listings that do quote a width are usually quoting the width across the handles. Measure your element first, then read will it fit your stove.

What to skip

Skip any pot that cannot cover quart jars with an inch of water above them, no matter what the listing calls it. There are a lot of shallow pots sold with a rack and the word "canner" in the title, and the shortfall is invisible in a photograph. A quart jar is roughly 6 1/2 to 6 3/4 inches tall, so you need meaningfully more than 8 inches of interior depth for the jars, the water above them and the room a rolling boil needs.

Also skip the idea that you have to buy anything at all to start. If you own a tall stockpot and can improvise a rack, you can water bath pints today — canning without a canner works through what qualifies and what does not.

Before you buy: is a water bath the right method?

A water bath canner only makes high-acid food safe. If your list includes green beans, corn, carrots, potatoes, plain tomatoes without added acid, meat or stock, no water bath canner on this page will do the job and you need a pressure canner instead. The split is set out in what can you water bath can and the reason behind it in botulism and home canning.