Our 1 gallon glass jar works great for holding small amounts of beer, wine or mead for aging, small batch fermentation, overflow storage and fermentation experiments. Some Suggested Uses Use to store excess wine when you press off and have more than you expected. Ferment small batches of mead, sake, fruit wine or anything else that strikes your fancy! Perform yeast experiments - split a batch of wine or beer into five 1 gal batches and ferment them with different yeast strains Uses a #6 stopper.