I know a lot of the turners here make bottle stoppers so I was wondering what finish is preferred. Being that the stoppers can end up in the fridge, I'm guessing some finishes are better than others.
Ray
I try to stay away from friction finishes. Friction finishes are usually shellac based, meaning an accidental spill of alcohol could mess up the finish.
For stoppers I use any of the following: CA, spray poly, or spray lacquer.
I've used CA, poly, and Antique oil with no issues. Agree with Matt's suggestion to avoid the friction polishes(wax and shellac) for durability reasons.