I'll be opening a fried pickle concession stand in the next year. I want to make my own pickles because I'll be cutting them a way you cant buy from a store. I am using a quick pickle method right now that is 100 percent vinegar (along with spices). I've noticed they fry better being cold. My problem is I won't have enough storage to refrigerate them all. I'll be storing them 5 gallon buckets. How long can I keep them out before they have to be cooled or used?
When I make quick pickles, I leave them out for a few days (~3-5 days) to get sour before storing them in the fridge. I use a standard, diluted white vinegar solution for mine. If you're using 100% vinegar, you should be fine keeping them out for at least 3-5 days. Vinegar is very inhospitable to pathogens (just make sure that the pickles are completely submerged). Good luck!