Why does tapping on the edge of a stuck jar lid loosen it and make it easier to open? Submitted by kisar1 t3_zv3yyj on December 25, 2022 at 6:49 PM in askscience 17 comments 17
Eclectic_Radishes t1_j20wj77 wrote on December 28, 2022 at 9:20 PM Jars are often sealed with a partial vacuum inside. Tapping can release this vacuum (creating microscopic channels for air to equalise the pressure) thus reducing the friction from the lid being pushed against the body of the jar Permalink 1
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