I've been bottling and selling hot sauce locally for several years. Some of my most popular sauces have been fruit-based sauces, using things like pineapple and mango. The problem is, the fruit in these sauces tends to ferment in the bottle and has caused 1 or 2 explosions when the bottles are opened, and drastically changed the flavor as well. I'm all about fermenting peppers, but the flavor of fermented fruit hasn't been as popular. I make sure to label my fruit-based sauces "keep refrigerated" at this point, but how can I make them shelf-stable?