shazzbat wrote:

That's because bananas don't give off acetone. You'd be in trouble if they
did.

Ethylene is what they give off.

AKA Ethyne and Acetylene, probably the latter is where the confusion got
caused. All fruit do it, but bananas are one of the most prolific.

I wonder if you had a big enough vat of bananas whether or not you could
do some welding.