I tried placing the can on its side instead of vertically and sure enough, the noise went away! But this raises another question... while I have no doubt that water is condensing under the convex base, typically condensing water doesn't make the fizzing/bubbling noise that can be heard in the...
While using an ordinary gas duster (difluoroethane) to clean some electronics, I noticed something weird (see linked videos):
After spraying the gas duster and placing it on a hard surface e.g. countertop, the can emits a fizzing noise.
Picking up the can causes the fizzing to stop.
The process...