Science Library

Warm, readable coffee purity explainers built from real testing questions.

Browse by red flag management, diet, biomarkers, coffee comparisons, and the fundamentals buyers usually need first.

Coffee Safety Note

Educational content only. Coffee, caffeine, pregnancy, reflux, anxiety, sleep, blood pressure, gut symptoms, and medication interactions should be discussed with a qualified professional when relevant.

Heavy Metals7 min read2026-05-19

Heavy Metals in Coffee: What Actually Matters Before You Panic-Buy Beans

Lead, cadmium, arsenic, and mercury can show up in food systems. The serious clean-coffee question is not fear — it is whether the brand tests and discloses results.

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Mycotoxins6 min read

“Mold-Free Coffee” Is Not Enough: The Mycotoxin Claim Audit

Mycotoxin-tested coffee can be useful. Mycotoxin fear-mongering without batch reports is just wellness cosplay with beans.

2026-05-19

Buying Guide8 min read

The Clean Coffee Buying Checklist: 9 Questions Before You Pay

A no-BS checklist for buying coffee based on testing, sourcing, freshness, processing, and price per cup.

2026-05-19

Decaf6 min read

Decaf Solvents: Swiss Water, CO₂, Ethyl Acetate, and the Mystery-Decaf Problem

If a decaf coffee will not disclose how caffeine was removed, that silence is part of the product.

2026-05-19