brew tapper refractometer|brewing refractometer hydrometer : makers An example: Yesterday, I measured a bottle of commercial Fuller's ESB and it gives 7,2 Brix in my tap water-calibrated refractometer. Knowing that the OG for this beer is 1.057 (14 P°) and using the calculator I can see that FG is about 1.012, although 7,2 Brix would correspond to 1.029 without correction for alcohol. Resultado da