This may seem a bit "off the wall" but I am researching if it is possible to essentially prevent fermentation in freshly squeezed grapes; just the opposite of what is desired in making wine. I realize that in the time it takes to squeeze the grapes and collect and bottle (if one chose those steps in order quickly) would still result in fermentation beginning, but if one wished to stop the fermentation at that stage would it be possible and how?
Thanks.