I can’t imagine any army leaving alcohol untouched. Even the 101st Band of Brothers had quite a party at Hitler’s Eagles’ Nest mountain getaway.
Retreating Germans deliberately left massive stockpiles of alcohol behind in the hopes that advancing Russian troops would drink themselves into a stupor. The opposite happened. Much of the (well-deserved) brutality the Russians inflicted on soldiers and civilians alike during their march into Germany was attributed to drunkenness.
A hidden chamber, no doubt, or they'd have looted it.