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Make smooth cold-brew concentrate with a coarse grind, a 1:5 starting ratio, and a clean filter—then adjust strength, steep time, and roast to your taste.

Stop guessing with scoops. Use this practical coffee-to-water ratio chart for pour-over, drip, French press, and cold brew, then adjust it to your taste.

Fine, medium, or coarse? Match your grind size to espresso, drip, pour-over, French press, or cold brew—and learn how to correct a bitter or watery cup.

Slow down this Sunday with a five-step coffee ritual inspired by Solar Roast’s improbable beginning: sunshine, a satellite dish, and a broccoli strainer.

Mold-free, mycotoxin-tested, lab-verified, single-batch — coffee labels in 2026 are a mess. Here's what each one actually means, what to ignore, and why low-temperature solar roasting handles most of the problem at the source.

Twenty-plus years ago we built the world's first commercial solar-powered coffee roaster. Here's why solar isn't just a sustainability story — it produces a measurably smoother cup.