Glass jar stuck in coffee cup - physics? expand/contract?

To save space, I put a cup size mason jar in an empty clean coffee cup.
In the past, I could put that in and take it out easily.
Today the cup is stuck and won't come out.
Anyone know how to remove - use heat, cold, water, fat?
Or give up and throw them both out?

  • Posted by: Nancy
  • June 12, 2023


creamtea June 14, 2023
Glad it got fixed. I've done similar with two stacked glasses, more than once! I run hot water from the tap onto the outer vessel.
Wendy June 12, 2023
Hi Nancy,

I would put the cup in a bowl of hot water and try to pull the jar out first. If that doesn’t work, put ice in the mason jar.
Good luck!
Nancy June 12, 2023
Wendy -
Terrific! It all worked (had to go to second stage with ice)!
Won’t repeat that stacking.
Many thanks,
Nancy June 12, 2023
Revised: I meant, the mason jar is stuck in the cup and won't come out.
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