Latest posts
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What actually stales coffee, and what freezing does about it
Degassing and oxidation are two processes on two clocks. What the measurements show about whole beans, valves, oxygen, and the freezer.
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Water is 98% of your coffee, and two numbers describe it
Total hardness and alkalinity are separate variables. What each does to extraction, why high alkalinity flattens acidity, and why distilled water fails twice.
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Paper or metal filter: what changes in the cup
Paper filters hold back the diterpenes that raise LDL cholesterol. Metal filters do not. What that costs, what it buys, and how to brew on either.