In article , Pat Meadows
writes:

WRONG! Dangerously wrong. Botulism is odorless and
(presumably) tasteless. Doesn't necessarily make gas
bubbles either.

hmm, and where did you get YOUR degree in microbiology?

the fermentation products of C. botulinum are acetic, propionic, isobutyric,
butyric, isovaleric, valeric, and isocaproic acids which are really stinky,
like bowel contents, and cause bubbles in the liquid. the organinism has to be
growing to produce the toxin. the Toxin is odorless and tasteless. the stuff
you find it in is not.