On Mon, 8 Jun 1998, Ray Dawson wrote: > Now I need to adjust the pH to a level that will aid in preservation. I > have the powdered citric acid and pH test strips, but I still need to know > what the pH of my final product should be. A pH below 4.6 will prevent the growth of botulism. That is the usual reason to adjust the pH. Here are some URLs (some are merely different formats): Complete Guide To Home Canning (USDA Info. Bul. No. 539) http://www.hoptechno.com/book30.htm National Food Safety Database: Home Canning http://www.foodsafety.org/canhome.htm Home Canning: Ensuring Safe Canned Foods http://www.foodsafety.org/he/he201.htm Home Canning Guide http://hammock.ifas.ufl.edu/txt/fairs/31520 Bacterial Spoilage (Botulism and others) http://www.chasedata.com/storage/bacteria.html IV. Spoilage, Especially Botulism (part 8) http://www.geocities.com/Heartland/Acres/1962/rff8.html#SPL Chuck Demas Needham, Mass. Eat Healthy | _ _ | Nothing would be done at all, Stay Fit | @ @ | If a man waited to do it so well, Die Anyway | v | That no one could find fault with it. demas@tiac.net | \___/ | http://www.tiac.net/users/demas