I tried reading upthread to find an answer - to no avail. I was recently asked to by alcohol for a Chassunah, so I picked up a bottle of Glenlivet 15 French Oak Reserve. Upon bringing it to the chassunah the mashgiach told me that it's on the CRC list as "Not Recommended" and therefore can not be served at a KCL event. (Note: KCL does NOT have its own policies on alcohol, they completely rely on the CRC list. The little cards with the hechsher info on the tables at Chassunahs clearly state that) Without a fuss I took the bottle off (don't worry I had a backup) however I started to do research. It seems like Glenlivet ages their Scotches in Bourboun Casks (which poses no halachic problem) for 12 years. At that point, they either get bottled and sold as Glenlivet 12, or are transferred into other cask to be "matured" or "finished" for several more years. In the case of the Glenlivet 15 French Oak Reserve, they would be aged for an additional 3 years. They are aged in French Limousin Oak Casks. These casks are known for aging Cognac, however the wording on the box says the following: "... The selective maturation in NEW French Oak Casks made from Limousin Oak..." My question therefore is, if these casks are new, why is there a problem?