hist-brewing: bottles

BrewInfo brewinfo at xnet.com
Sun Aug 27 10:27:22 PDT 2000


Scott writes:
>UV light will react with the bittering compounds in hops and covert some
>into 3-methyl crotyl mercaptan which is the same compound that in in the
>spray of a skunk.  This distinctive compound is detectable by most people in
>as small a quantity as a few parts per billion.

It doesn't happen *just* from UV light, although UV does skunk beer.  Light
from the blue-green range to UV will skunk beer.  Plain clear glass passes
very little UV, so it some light in the visible spectrum needs to be involved.

Miller gets away with clear bottles by using modified hop compounds in all
their beers except the one with the red label (and that comes in a brown
bottle... surprise!).

Al.

Al Korzonas, Lockport, Illinois, USA
korz at brewinfo.org
http://www.brewinfo.org/brewinfo/

-------------------------------------------------------------------------
To unsubscribe from this list, send email to majordomo at pbm.com containing
the words "unsubscribe hist-brewing" (or unsubscribe hist-brewing-digest, if
you get the digest.) To contact a human about problems, send mail to
owner-hist-brewing at pbm.com



More information about the hist-brewing mailing list