Forced carbonation, hydrometer correction, yeast starters, attenuation, and cold crash calculators.
Calculate the CO2 pressure (PSI) needed to force-carbonate your beer in a keg at a given temperature to reach your target carbonation level.
Correct your hydrometer reading for temperature. Most hydrometers are calibrated at 60F or 68F — this calculator adjusts for the actual sample temperature.
Correct refractometer Brix readings for the presence of alcohol in fermenting or finished beer. Alcohol skews refractometer readings, making them unreliable without correction.
Calculate the DME and water needed for a yeast starter to grow enough cells for your batch. Supports stirred and unstirred starters with growth rate modeling.
Calculate apparent and real attenuation from your OG and FG readings. Helps assess yeast performance and fermentation completeness.
Estimate the recommended diacetyl rest duration and temperature for your lager or ale based on fermentation parameters and yeast strain characteristics.
Plan your cold crash schedule with temperature ramp-down rates, duration, and estimated clarity improvement based on your beer type and fining additions.
Calculate tea bags, sugar, starter liquid, expected pH, and second fermentation carbonation time for your kombucha batch.