Phosphoric Acid - 4 oz

Phosphoric Acid is a flavor-neutral liquid acidifier used to adjust mash and brewing water pH for more efficient conversion and clean fermentation. It provides a precise way to lower pH without introducing additional flavors, making it especially useful in pale ales, lagers, and hop-forward beers where subtle changes in acidity can influence clarity, body, and balance. Its clean profile allows brewers to fine-tune water chemistry while preserving the intended characteristics of delicate beer styles.

This acid offers key advantages for managing water alkalinity and achieving mash pH levels that support optimal enzyme activity. By reducing pH with minimal sensory impact, it enables predictable wort composition and helps create a stable environment for yeast performance. Unlike lactic or citric acid, Phosphoric Acid remains neutral in the finished beer, making it a preferred choice when flavor precision is essential.

Available in a four-ounce bottle in either 10 percent or 25 percent concentration, Phosphoric Acid provides flexible dosing for different brewing setups. The liquid format allows for accurate measurement and quick integration into the brewing water, resulting in consistent adjustments with each batch. It is suitable for extract and all-grain brewers who want more control over mineral balance and mash efficiency.

To use Phosphoric Acid, measure a small amount and add it to brewing water or mash while monitoring pH with a meter or test strips. Adjustments are made gradually to reach the desired range, typically between 5.2 and 5.6 in the mash. Because it disperses quickly and does not contribute flavor, it allows brewers to refine acidity with a high degree of control and repeatability.

Designed for precision in water chemistry, Phosphoric Acid provides a reliable way to lower pH, enhance enzymatic performance, and maintain clean fermentation outcomes across a wide range of beer styles.