You may find carbonation expressed as grams per liter (g/l). However, I have always preferred defining carbonation as Volumes CO2. It makes it easier to visualize as I’ve tried to demonstrate in the graphic because the volume units are universal. If you are American and think in gallons or fluid ounces or if you are using the metric system with liters, Volumes CO2 is multiplied by your volume of cider and assumes the volume units you are using (i.e. it’s universal).
I normally think of three carbonation levels for cider: still, petillant, and sparkling. Here are the volumes CO2 level that I use for each.
Volumes CO2 by Carbonation Level
If you want more information about how to carbonate your cider, check out part 3 of my method development series on carbonation.
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