If the corks can not pop due to a shrinkwrap pressure might get so high that the bottles explode.They are just for show although I did have 1 batch that I must have forgotten to add sorbate to and the capsules were the only thing saving me from a bunch of popped corks althoug 1 out of 15 did go and make a mess!
Most shrink wraps (at least over here) have small pinpoint holesI heard that shrink wraps help prevent air getting in if the cork isnt 100% sealed...but then if thats the case surely it would leak anyway.
Well..........Drunken moths cool. I always wondered why the little buggers flew into the flames of my fireplace.
Well Luc, what about dipping the bottles in sealing wax?