I have a couple small jars of preserves; one black berry and one blueberry. I swear they both have about as much seeds as they do sugar. I strained a jar like these one time and ended up just about losing most of it to the strainer. New hobby, new ideas. The label says 18 servings per jar and 13 grams of sugar per serving. My math says right around 1 pound of sugar. My math says that in a 1/2 gallon batch, OG will be 1.092. I have a crossed hair to dump those jars into a 1/2 gallon mason jar, top up with water, mix thoroughly and pitch some yeast. I've got a lid that will take an airlock. Any wisdom you could share before I do this would be great. I have some oak cubes I can add to the jar. I was planning on using those at after clearing, stabilizing and back sweetening. Thanks!