Lids that seal

Airtight cookie jars (40)

33 makers 111 options $8.54 to $199.69

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40 jars

What makes a cookie jar airtight

An airtight jar closes against something: a silicone or rubber ring in the lid, a clamp that presses a gasket down, or a lid lined with rubber. A lid that only rests on the rim lets air in and out, which is fine for cookies eaten the same day and bad for a tin of gingersnaps you want crisp next week.

The Exploratorium explains why it matters: sugar draws moisture, so soft cookies dry out in open air and crisp ones go limp in humid air. Keep each kind in its own sealed jar. Airtight jars come in every material, from wide-mouth glass with a clamp to ceramic crocks with a ring and iron tins with a bamboo lid.

These 40 jars are part of the Cookie Jar catalog, $8.54 to $199.69 at the last catalog update, so you can set a budget before you pick a shape.

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Questions

Airtight cookie jars: what people ask

Do you need an airtight cookie jar for homemade cookies?

If the cookies last longer than a day, yes. A sealed lid keeps soft cookies soft and crisp cookies crisp, and it keeps the two from trading moisture if you store them apart, as the Exploratorium suggests. A loose lid suits a jar that is emptied by dinner.

How can you tell if a cookie jar lid really seals?

Look for a ring around the inside of the lid or a clamp that presses it down; the cards on this page say which the maker lists. A ceramic lid that only sits on the rim does not seal, however snug it looks.

Should you put soft and crisp cookies in the same airtight cookie jar?

No. Sugar pulls moisture from the air and from each other, so the crisp ones soften and the soft ones dry out. Give each kind its own jar.

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