Disclosed are methods for the production of light stable hops, useful for
the brewing of beer or ale to be stored in clear or green glass
containers, which beer or ale will not develop objectionable flavor as a
result of exposure to light. Light stable hops are prepared by double
extraction of liquid/supercritical CO.sub.2 extracted hop solids with
ethanol to remove alpha/iso-alpha-acids. Such alpha/iso-alpha-acids may
be further removed from the ethanol extraction liquor obtained in the
double extraction process by subjecting such liquor to an ion exchange
medium, or precipitation by a metal ion, heavy metal ion, or alkali metal
ion, to provide an alpha/iso-alpha-acid is free extraction liquor which
may be added to the light stable hops residue obtained in the initial
double extraction process.