The Proofing Room

Free calculators for craft distillers — dilution, yield, ABV, blending, sugar wash recipes, and unit conversion. Plus a supplier directory and a full crafting guide.

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Save your recipes and calculator settings, so a good run doesn't live on a sticky note.
Bookmark the suppliers you actually buy from.
Keep your metric or US units set across every calculator.
Launch offer: the Field Guide for $0.99, for the first 100 to claim it.

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The Distiller's Bench

Dilution

Cut a batch down to a target ABV.

Yield

Estimate output from sugar or grain.

ABV

Standard and alternative formulas.

Blend

Combine batches or hit a target ABV.

Sugar Wash

Build a recipe for a target wash.

Convert

Volume, weight, temp, and density.

Supplier Directory

Vetted brewing and distilling suppliers, organized by category.

Crafting Premium Spirits

A full walkthrough from mash to bottle, in five chapters.