The juice analysis results for the berry samples collected this morning are as follows: 9/16/2010 Cultivar °Brix pH TA Chambourcin M 21.3 3.45 0.726 Catawba W 18.5 3.42 0.814 Norton NN 21.8 3.68 0.983 Norton NS 20.8 3.51 1.000 … [Read more...] about Grape juice chemistry