Brewing Science
The research behind the numbers.
Getting Started
Brewing Science
IBU & BitternessTinseth utilization, whirlpool hops, dry-hop bitterness, and the science of iso-alpha acids.Read more →Gravity & ABVHow original gravity is built from your grain bill, and the path from OG to FG to alcohol.Read more →Water ChemistrySource profiles, style targets, the auto-calculator, and what ions do to your beer.Read more →Mash pHThe proton deficit model — predicting and adjusting mash pH from grain and water chemistry.Read more →Mash TemperatureEnzyme kinetics, beta- vs alpha-amylase, and why mash temperature controls fermentability.Read more →Yeast StartersViability decay, pitching rates, and the White vs Braukaiser growth models explained.Read more →Hop Flavor RadarA 9-axis flavor model that maps hop character beyond IBU — citrus, tropical, resin, and more.Read more →
Calculators
Strike Water TempCalculate the strike water temperature for your mash from target temp, grain temp, and mash thickness.Read more →ABV CalculatorCalculate alcohol by volume from original and final gravity readings.Read more →DilutionFigure out how much water to add to hit your target gravity.Read more →Boil-OffCalculate post-boil volume from pre-boil measurements and target OG.Read more →CarbonationFind the right PSI for your desired CO₂ volumes at serving temperature.Read more →Hydrometer CorrectionCorrect gravity readings for sample temperature differences.Read more →