CellarScience® Instant Water™ | Stout & Porter Water Salts

• Elevates Malt Depth & Smoothness: Specifically formulated to moderate mash pH and balance chloride levels, amplifying rich chocolate and coffee notes in stouts and porters while eliminating harsh roasted bitterness.
• Instant Precision: Effortlessly transforms RO or distilled water into a reliable, repeatable brewing base.
• Optimized Chemistry: Precisely balances mash pH and mineral content to unlock your beer's full flavor potential.
• Expertly Formulated: Developed with brewing authority Colin Kaminski for style-accurate chemistry and optimal mash pH.
• All-Grain Optimized: Engineered specifically for all-grain mashing to maximize enzymatic activity and mash efficiency. Instant Water™ is not recommended for extract brewing.

Crafted for dark, roasted beers, this formula moderates mash pH while emphasizing malt depth and richness. Its balanced carbonate and chloride levels smooth roasted character, supporting chocolate and coffee notes without harshness. Perfect for stouts, porters, and other malt-driven dark ales.

Elevate your home brewing with the CellarScience Instant Water™ Salt Pack — designed in collaboration with Colin Kaminski, co-author of Water: A Comprehensive Guide for Brewers. Each expertly crafted blend of essential salts and minerals transforms reverse osmosis (RO), deionized (DI), or distilled water into an ideal base for brewing.

Every formulation is precisely balanced to optimize water chemistry for its intended beer style, helping your brew reach its full flavor potential with style-accurate mineral content and optimized mash pH. Engineered for precision and ease of use, CellarScience Instant Water™ Salt Packs simplify the complex process of water adjustment, providing a reliable and repeatable solution.

Importance of Mash pH
Proper mash pH is critical to brewing performance and finished beer quality. CellarScience Instant Water™ formulations are designed to place mash pH into the optimal range for each beer style.

• Improves brewhouse efficiency by supporting optimal enzyme activity during starch conversion

• Shapes hop flavor and balance by influencing bitterness, smoothness, and aroma expression

• Enhances clarity and stability through improved protein coagulation and yeast performance

With properly conditioned water, you’ll unlock better fermentation, enhanced enzyme activity, and a cleaner, more expressive finish that allows your beer’s true character to shine.

• Designed to work with: Reverse osmosis (RO), deionized (DI), or distilled water
• Each pack treats: 6 gallons (23 L) of brewing water
  • For larger batches, add an additional 2 g per gallon

Instructions 

1. Use only with reverse osmosis (RO), deionized (DI), or distilled water.
2. Add the full contents of this pack to 6 gallons (23 L) of brewing water before mashing. Stir until dissolved.
3. Mash in as usual — no additional acid or salt adjustments are typically required.
4. Proceed with your normal brewing process.

Note: These salts are designed to set mash pH without acid additions. Because malt acidity varies, you may wish to verify your mash pH and make small corrections if needed, though this is rarely necessary. Dextrose is used in trace amounts as a processing aid for blend consistency and flow and does not affect fermentation or flavor.