When stored in cold areas, the starch inside potatoes starts converting into sugar quicker. This gives them an excessive sweetness and makes them burn easier.
Onions naturally absorb moisture, and can become soft, mushy, and more prone to mold growth in a damp fridge. The excess moisture also accelerates sprouting.
Cold, humid environments cause garlic to sprout faster once removed. These green shoots have a bitter taste and rubbery texture that can alter the flavor of your dishes.