I have heard three theories about why Mexicans put wedges of lime in their beer bottles. Does anybody here know the Truth?
Here's what I've been told:
(a) they don't only - only tourists do. I have no idea
(b) it keeps the flies out. Sounds racist to me
(c) Mexican beer comes in lighter coloured bottles than in other countries and the beer reacts with UV light, giving the beer a 'skunky' aroma. The lime takes away the aroma.
Google image shows that some Mexican beer comes in lighter coloured bottles but some comes in dark bottles. Surely Mexican+ +brewers would have realised there was an issue by now?
Thanks for your input.

