For a full sour pickle (14-21 days) use a 4.5% brine. 3% ratio = 7 grams salt per 1 cup of water. ( 1 1/4 teaspoon fine sea salt, per 1 cup water) 3.5% Ratio= 9 grams of salt per 1 cup of water. ( 1 1/2 teaspoon fine sea salt, per 1 cup water) 4.5% ratio 10.8 grams of salt per cup of water. ( Aug 22, 2019