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Timeline for Coffee in mug making buzzing noise

Current License: CC BY-SA 4.0

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Dec 4, 2023 at 15:23 comment added nathancahill Thanks, not bubbles in this case. Also, not from underneath either. Sound continued as I picked it up and turns it around by my ear to try to determine the source.
Nov 30, 2023 at 14:40 comment added Chris H I reckon that's really close but suspect it's more that the ring of unglazed material on the bottom was damp, and heating the mug by filling it with hot water caused that dampness to evaporate and the vapour to bubble out. You'd need water under the rim to make enough of a seal for bubbling rather than gentle flow
S Nov 30, 2023 at 13:14 review First answers
Dec 1, 2023 at 5:48
S Nov 30, 2023 at 13:14 history answered Tom Williams CC BY-SA 4.0