Espresso Recipe Design Fixed yield Use this calculator to help plan espresso recipes. Given a target yield, target Extraction Yield and target strength (TDS), this will calculate what your dose needs to be. Company Target Parameters Espresso mass (g) * Extraction Yield (%) * TDS (%) * dose You need to dose grams ratio The brew ratio is 1 to Measure the TDS. TDS below If the TDS is below your design target of %, grind finer to increase strength TDS above If the TDS is above your design target of %, grind coarser to decrease strength