A need for hydration isn't really comparable to something like consuming tobacco. Even though many or all of the beverages Claire is consuming has a fermented component, it's still providing hydration, which all humans need to survive. Not to mention, Jamie and Claire are operating a liquor business.
As far as tobacco, I would have thought snuff was the popular tobacco product of the time, especially in France. I wouldn't expect to see a lot of smoking in those settings. We do get some smoking in backgrounds and comments about tobacco smells, but still, snuff should be the go-to pro