Yes, you can use it for beer with no taste problems. As far as oxidation, it is plastic so it might not be 100% impermeable to oxygen if you leave beer in there for long term storage. I've brewed two batches in mine which I made from a vittles vault. I fermented for a week, then dry hopped for a week, cold crashed in the same container (inside a temperature controlled converted kegerator) then transferred to 5 gallons cornys to carbonate. The first batch was fantastic, we drank the 12 gallons that it made within 2 weeks (4th of July party) and the second batch is carbonating right now. the first batch was little cloudy, the second batch is crystal clear. I love the idea of brewing a 10 gallon batch and fermenting it in one container. I don't have the room for two 6 gllon buckets, but the vittles vault fits perfectly with room for a blow off container next to it.