5.2 is a proprietary blend of food-grade phosphate buffers (similar to brewer’s salts) that will lock in your mash and kettle water at a pH of 5.2 regardless of the starting pH of your water. 5.2 is safe for your mash and WILL NOT add any flavors to your beer. 5.2 will provide consistency of pH in any water conditions, but the most significant gains will be obtained if you are brewing in hard water. Use 5.2 Mash Stabilizer to optimize your enzymatic activity in your malt, help clarify your wort, and achieve a more consistent hop utilization. Use 1/3 oz. per 5 gallons of water.