PrimeTabs (manufactured by Venezia & Company) are high quality, sanitized tablets of corn sugar that you can add directly to your bottles. There is no mixing or boiling required. The tablets are sized such that you can adjust the level of carbonation in your bottles depending on the style and your tastes. For a low carbonation level, typical of a British draught ale, use 2 PrimeTabs per 12 oz. bottle. Use 3 for a more average carbonation level and use 4-5 for a higher carbonation level like that of American lagers. PrimeTabs are sold in packages of 250 tablets, suitable for priming an entire 5 gallon batch. By using PrimeTabs, you can eliminate one siphoning step (from the fermenter to the bottling bucket) and reduce the risk of oxidation.