About

The Proofing Room is an engineering toolbox for craft distillers. We cover the equipment, the process, and the math: stills and their components, washes and fermentation, cuts, proofing and blending, and aging. We also track the news that matters to the hobby, like court rulings and legislation on home distilling.

The blog is the companion to proofing-room.vercel.app, where you'll find our free calculators (dilution, yield, ABV, blending, sugar washes, and unit conversion) and our five-chapter guide, Crafting Premium Spirits, free to read on the web.

How we write

We stay on the education and equipment side. Every fact is checked against a primary source, calculator results are planning estimates rather than lab measurements, and we say so when something is uncertain.

Who we are

The Proofing Room is built by PNWTechnology (Pacific Northwest Technology LLC), a small software studio in the Pacific Northwest.

US federal law bans distilling spirits in a home, or in a shed, yard or enclosure connected to one, and the Supreme Court has agreed to review that ban in DOJ v. McNutt. State and local rules apply too, and rules differ in other countries. This content is for informational and educational purposes only and is not legal advice.

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Whiskey Barrel Weekend in Coeur d'Alene: What a Master Class Taught Us About Tasting

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A Federal Court Just Ruled the Home Distilling Ban Unconstitutional (Here's What Actually Changed)

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The Freedom to Home Distill Act: What H.R. 10157 Would Change (and What It Wouldn't)

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