It will hold pressure and I've bottled beer like this once before for a camping trip. The main things to avoid would be any light at all since the bottles provide no protection. Also, one of my beers tasted/smelled just a tiny bit like rootbeer. Plastic holds onto some of those tastes/smells more than glass so I'd use tonic or club soda next time. Also, it looks kind of crappy. Other than that, I think it's a go.