Frozen Coffee Storage Calculator

Sceptical of the benefits of Freezing Coffee?
See Coffee: To Freeze or Not to Freeze on Home Barista


Coffee   [optional]
Roasted   First Brew Day   Ambient    °  C   F
Frozen   Last Brew Day   Freezer   °  C   F
    Staling Rate Reduction  / 10°C


   Daily Usage    g   oz   lb   kg


Hermetic packaging is imperative. Calculation : 1 / ( (staling rate)^((amb-frz)/10) ). amb and frz are °C . Empirical evidence suggests that at least ½ the computed usage can be stored with excellent results.
Lighter roasts have a longevity edge over darker roasts. Over a month period a medium roast may require a 0.2g dose increase to keep the initial shot parameters. A dark roast may require a 2.0g dose increase to keep the same shot parameters. This is observed on a Niche Zero with locked grind adjustment on approximately 18g dose in a double basket for 30g shot in 30s from first drop.