Since refractometers do not correctly measure sugar content when there is alcohol present, we need to math it out.

The following form will help with that.  Remember that these are only estimates and if you want real gravity readings after fermentation has started you will need to use a hydrometer.

The original gravity reading is before you’ve added yeast.  The current gravity reading is during fermentation.

Original Gravity:
Brix Gravity
Current Gravity:
Brix Gravity
 
Corrected Current Brix:
Corrected Current Gravity:
Current Alcohol by Volume:

 

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