Guides
Yes, Freeze Your Coffee Beans (Here's How to Do It Right)
The old advice against freezing coffee beans got it backwards. Done properly, the freezer is the best freshness tool you own.
Guides
Your Water Is Most of Your Coffee
A brewed cup is about 98% water, and its minerals shape extraction. Here's how calcium, magnesium, and bicarbonate work, plus the SCA target numbers.
Guides
Why Coffee Puffs Up: The Bloom, Explained
What the bloom actually is, why fresh coffee releases CO2, and how a 30 to 45 second pause makes your pour-over taste better.
Notes
The Afternoon Switch: Why I Trade Coffee for Tea After Two
Caffeine has a long half-life, which is why the afternoon cup can cost you sleep. A look at the science, and the case for an afternoon tea break.