The juice analysis of the berry samples collected this morning is as follows: 5-Sep-14 Cultivar ˚Brix pH TA g/100ml Catawba R 19.1 3.19 0.987 Catawba W 17.4 3.13 1.219 Chambourcin F 21.1 3.13 0.893 Chambourcin M 21.2 3.23 0.846 Norton F 21.6 3.17 1.080 Norton NN 20.5 3.18 1.433 Norton … [Read more...] about Grape juice chemistry