During the FermCalc presentation at our last meeting, the question came up of what fraction of a tsp of calcium carbonate would weigh 0.2 ounce. In FermCalc, all the results for acid adjustments are given by weight, not volume. My scale shows that one tsp of CaCO3 weighs 2.6 grams or about 0.1 ounce. (There are 28.3 grams in an ounce.)
If you don’t have a scale, here is a handy list that is in Appendix B of “The Home Winemaker’s Manual” by Lum Eisenman. Go to https://erowid.org/chemicals/alcohol/alcohol_article2_winemakers_manual.pdf to download the entire manual.
Tim Murphy
EQUIVALENT DRY VOLUME WEIGHTS
AAA charcoal 1 tsp equals 1.5 grams
Acid blend 1 tsp equals 5.1 grams
Ascorbic acid 1 tsp equals 4.2 grams
Bentonite (agglomerated) 1 tsp equals 3.4 grams
Calcium carbonate 1 tsp equals 2.6 grams
Citric acid 1 tsp equals 4.9 grams
Diammonium phosphate 1 tsp equals 4.9 grams
Fumaric acid 1 tsp equals 5.3 grams
Gelatin 1 tsp equals 3.3 grams
Malic acid 1 tsp equals 4.6 grams
Pectic enzyme 1 tsp equals 4.0 grams
Polyclar AT (PVPP) 1 tsp equals 1.2 grams
Potassium bicarbonate 1 tsp equals 3.3 grams
Potassium bitartrate 1 tsp equals 3.8 grams
Potassium metabisulfite 1 tsp equals 6.1 grams
Potassium sorbate (prilled) 1 tsp equals 3.0 grams
Sparkolloid 1 tsp equals 1.1 grams
Sodium bisulfite 1 tsp equals 5.7 grams
Tannin 1 tsp equals 2.8 grams
Tartaric acid 1 tsp equals 5.0 grams
Yeast ghosts 1 tsp equals 2.8 grams