Stainless Steel SphereThe Wine FREEZE is perfect for all wines. Just pop it in the fridge to cool your reds to the perfect cellar temperature or store it in the freezer to chill your whites. HOST's proprietary cooling gel is precisely engineered to keep your beverage perfectly cold for hours. For red wine, refrigerate HOST Wine FREEZE Cooling Cups for at least two hours to keep your drink between fifty eight and sixty degrees Fahrenheit For white wine, freeze HOST Wine