Here is the juice sample analysis results from the berries collected this morning. 8/23/2012 TSS pH TA Norton NN 23.2 3.29 1.084 Norton NS 22.7 3.30 1.146 Norton F 24.2 3.28 0.908 Chambourcin MVEC 22.4 3.28 0.831 Catawba W 16.4 3.20 0.892 Catawba R 17.5 3.25 0.801 … [Read more...] about Grape juice chemistry