Calculator cluster
Coffee roasting
Weight loss, rate of rise, development time ratio, green density and degassing windows.
Coffee roasting
Bean Degassing Calculator
Estimate a peak flavour window from roast level and days since roast. Light roasts rest longer; dark roasts degas faster. A calendar, not a CO₂ meter.
Coffee roasting
Green Coffee Density Calculator
Estimate green bean bulk density from mass and displaced or poured volume. Density hints at heat uptake, not a lab true-density.
Coffee roasting
Roast Development Time Ratio Calculator
Compute development minutes and DTR percent from time to first crack and total roast time. A clock ratio, not a colour meter.
Coffee roasting
Roasting Rate of Rise Calculator
Compute rate of rise between two bean temperatures over a time interval. RoR is the slope, not a flavour name.
Coffee roasting
Roasting Weight Loss Calculator
Turn green and roasted mass into percent weight loss and yield. A crude roast level proxy: more loss usually means a darker roast.
Other clusters
- Brew ratios & dosingCoffee-to-water ratios, espresso yield, cold brew dilution, flash brew and Americano balance.
- Grind size & dialing inClick conversion between grinders, espresso dial-in, TDS, extraction yield and burr life.
- Water chemistryBarista water recipes, GH/KH, descaling intervals, acidity buffering and brew bypass.
- Health, economics & lifestyleCaffeine estimates, daily limits, cafe vs home ROI, cost per cup and batch scaling.
- Advanced toolsMilk steaming, pump pressure and flow, thermal loss, siphon steep time and moka capacity.