Which is better for pressure canning?

Both are made for canning. FORJARS states its jars withstand pressure canning and water-bath canning, and its thicker glass is the main selling point. Kerr quart jars are standard canning jars used for both methods.

The Kerr quart jar holds 32 oz, twice the 16 oz of the FORJARS jar. A 12-pack of Kerr jars holds 384 fl oz against 192 fl oz for the FORJARS set.

Which is better for freezing?

FORJARS lists freezer safe in its specs. Kerr's listed specs do not mention freezer use, so check the jar before freezing.

Is the FORJARS set worth the extra?

At $24.55 to $25.15 in early November 2026 for 12 jars, it is about $2 per jar with lids. That is fair for thicker glass and a silicone seal, but you get half the volume per jar compared with quarts.

Do the lids interchange?

Both are wide mouth jars, so standard wide mouth 2-piece lids should fit either. FORJARS ships its own lids with a silicone ring.

Both are reusable glass jars. FORJARS claims 50% thicker glass that resists cracking; Kerr jars are the standard thickness but are widely used for years.

Premium Mason Jars – 16 oz (12-Pack) | Wide Mouth Glass Canning Jars vs Kerr Wide Mouth Mason Jars Quart

Buy the FORJARS 12-pack if you want thicker glass, a leak-free silicone seal and jars that handle pressure canning, freezing and the dishwasher. Buy the Kerr wide mouth quart 12-pack if you want the long-established American canning brand and standard wide mouth lids that fit common accessories. The FORJARS set has been priced at $24.55 to $25.15 in early November 2026; no current price was given for the Kerr set.

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