Meniscus
Cart (0)
Lab

Extraction Lab

The SCA Golden Cup formula: Extraction Yield % = TDS% × (Water − Dose × Retention) / Dose. Retention (~2.0g absorbed per gram of dry coffee) is the standard assumption on the SCA brewing control chart.

Extraction Yield %
14
18
22
28
Golden Cup zone
0.8TDS %1.8

Extraction Yield0%
Brew ratio1:0
Dissolved solids0g