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Storage and Preservation Tips

The Safety Reason Mason Jar Lids Have 2 Pieces By Ben Hillin Nov. 16, 2025 9:00 am EST

Mason jars are the perfect containers for lunches , so it's nice to have several around, but if you're like me, you might be storing food in your jars all wrong . You also might struggle to keep them stored because the lids are in two pieces, and I've personally had mason jar lids scattered all over my pantry. Or, you might have noticed that industrially made jarred goods (jams, pickles, etc.) have lids that are one piece. So, what gives?

Turns out there's a very good reason: one-piece lids are good for industrial canning and food preservation because they have strict temperature controls in place. For home use, they tend not to work so well because th

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