Spirits like whiskey, rum, gin, vodka, etc. don't need to be refrigerated because the high alcohol content preserves their integrity. And most liqueurs also have a satisfactorily high alcohol content, as well as sugar that also helps to keep the flavors preserved.

Is it OK to put vodka in the fridge?

Spirits or liquors like vodka, tequila, rum, gin, brandy, and whiskey can be left out at room temperature, or chilled depending on personal preference, according to beverage expert Anthony Caporale. White wine, champagne, beer, and cider should all be chilled in the refrigerator prior to consumption, per Caporale.

What happens if you refrigerate vodka?

The problem is that keeping the vodka at such low temperatures subdues any flavor within the liquid. Per BI, premium vodkas such as Grey Goose should be "naturally soft and not aggressive," meaning that if you keep it at really low temperature, "you'll actually be hiding the more sophisticated aromas and flavors."