DiFluid CoffMeter W1 - Water Activity Meter

Moisture percentage tells you how much water is in your coffee. It doesn't tell you whether that water is a problem. Water activity (aw) measures how available that water is - and it's the number that determines whether your green coffee is ageing gracefully in storage or quietly deteriorating.

The CoffMeter W1 brings laboratory-grade water activity measurement to your bench. Load a 6–8g sample, wait around two minutes, and you have a reading accurate to ±0.02 aw - the same data professional QC labs use to assess stability, shelf life, and safety.