History, science, place, design, flavor, and brewing systems in one connected world.
Brew Lab
Icons identify calculators; formulas, units, assumptions, and limitations remain authoritative.
Generation D · BEU018
Transparent brewing calculations with formulas, units, assumptions, validation, and result boundaries visible before convenience.
Boundary: These tools do not replace calibrated measurement, process engineering, package pressure ratings, regulatory testing, or jurisdiction-specific brewing requirements.
Calculators I + II
10 published calculator contracts expose 15 formulas. Every tool works without account state and creates zero automatic input-result routes.
gravity abv
Estimate alcohol by volume from measured original and final specific gravity while showing both common hydrometer formulas and apparent attenuation.
2 visible formulas · account state not required · calculator input states create no indexable routes
apparent attenuation
Compare original and final hydrometer gravity as apparent attenuation, or rearrange the same relationship for a planning-only final-gravity estimate.
2 visible formulas · account state not required · calculator input states create no indexable routes
carbonation priming
Estimate residual dissolved CO₂ from temperature and a dextrose/sucrose priming mass needed to close the gap to a chosen carbonation target.
2 visible formulas · account state not required · calculator input states create no indexable routes
batch scaling
Apply a transparent linear batch-volume factor to typed mass, volume, or count quantities without pretending process behavior scales perfectly.
1 visible formula · account state not required · calculator input states create no indexable routes
unit conversion
Convert common volume, mass, temperature, and gravity-point units while rejecting cross-dimension conversions.
1 visible formula · account state not required · calculator input states create no indexable routes
beer color
Estimate recipe color as malt color units and Morey SRM while keeping analytical color separate from literal finished-beer appearance.
2 visible formulas · account state not required · calculator input states create no indexable routes
hop bitterness
Estimate boiled-hop IBU with the Tinseth model while explicitly separating modeled IBU from perceived bitterness.
2 visible formulas · account state not required · calculator input states create no indexable routes
water blend
Linearly blend six reported ion concentrations from two water sources without pretending to predict mash chemistry.
1 visible formula · account state not required · calculator input states create no indexable routes
water ion ratio
Compare sulfate and chloride concentrations while refusing to turn their ratio into a literal sensory prediction.
1 visible formula · account state not required · calculator input states create no indexable routes
alkalinity conversion
Convert bicarbonate mg/L to alkalinity as CaCO3 mg/L and back using the equivalent-weight relationship.
1 visible formula · account state not required · calculator input states create no indexable routes
Unit safety
Volume, mass, temperature, gravity, and count are explicit dimensions. A request such as kilograms → liters is rejected rather than silently guessed from an assumed density.
Route boundary
Inputs, results, query strings, presets, and saved calculation states remain application state. BEU016's zero combinatorial-route budget stays intact.
ICU / CONNECTED DISCOVERY
These links come from ICU's bounded public recommendation graph. Beer evidence, historical uncertainty, jurisdiction, sensory interpretation and responsible-participation boundaries remain intact.
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