I mixed up a batch of the welches grape juice wine this morning for my brother in law. I made a 1 gallon batch a while back and following yoopers recipe I did not reach the OG as posted but I left it be and fermented it out....I mixed up a 5 gallon batch today and again missed the OG and what I had was the same as it was the first time 1.060.....I read that adding 4 oz of sugar to 5 gallons riases the OG by.005.... I wanted to get to 1.090 to make up for samples and topping off...anyway i calculated that I needed to raise the OG by .030 so I added 4oz of sugar X 6 for 1.5 pounds additional sugar in the 5 gallons.........my OG is NOW 1.120....where did I mess up? I DID pour the dissolved sugar on top but I mixed it pretty well I thought. the original sugar was put in in stages and the juice added on top.