The humidity in a wine cooler should be kept around 50%-70% to protect the corks from drying out and shrinking, preventing air from entering the bottle that could spoil the wine.
What capacity wine cooler do I need?
The capacity depends on your collection and how many bottles you intend to store. Wine coolers with a capacity of 12-50 bottles are common for home use, while larger units can store 100 bottles or more.
