Here are the juice analysis results for the berry samples collected YESTERDAY morning. 9/17/2013 Cultivar TSS pH TA Catawba R 19.9 3.15 0.927 Chambourcin F 22.9 3.18 0.915 Norton F 23.4 3.26 1.02 Traminette F 20.3 3.12 0.769 … [Read more...] about Grape juice chemistry