Final answer:
Yes, our ancestors used alcohol fermentation to store crops as fermented foods.
Step-by-step explanation:
Yes, our ancestors did use alcohol fermentation to store some of their crops safely as fermented foods. The consumption of alcoholic beverages dates back thousands of years, with evidence of ancient civilizations using fermentation to produce alcoholic drinks like beer, wine, and mead. Fermented foods such as bread, cheese, and pickled vegetables were also enjoyed throughout history.