Would it work, yes. However, my first thought is that it is kinda funny. Second, it seems like it would be a pain to pop off the tap, fit it with a stopper and airlock, etc. Third, it seems hard to clean and I would NEVER reuse it. If you are going to be paying $3 each time for these things, and it seems that you are doing experimental/small batches, why not go with these 2 gallon fermenting buckets for $5.99 each?