First of all, no question is stupid. Yes it's ok to drink while using snus. I always have something that I'm drinking while using snus. I think that I read somewhere that some things can affect the ph levels in your mouth and therefore affect how the nic/wta's are absorbed. This I can tell you for sure. I drink usually two cups of coffee in the morning while having a snus portion in and tend to follow the rest of the day with water or diet soda and snus works just fine for me.