Each stemless wine tumbler features our proprietary cooling gel which allows the cups to be frozen or chilled to the ideal temperature for serving and enjoying any wine varietal. For red wine, refrigerate the Wine FREEZE for at least two hours to keep your drink between fifty-eight and sixty degrees Fahrenheit. For white wine, freeze the Wine FREEZE for at least two hours to keep your drink between forty-three and fifty-three degrees Fahrenheit. The Wine FREEZE is precisely engineered to keep your beverage perfectly cold for hours. Each stemless tumbler is constructed with an insulated silicone band for comfortable handling, and can easily accommodate 8.5 ounces. Hand wash only. For the best results, place the Wine FREEZE upside down in the freezer to allow the gel to evenly spread and freeze. Originally developed for wine, the HOST FREEZE line has grown to include popular whiskey tumblers, beer drinkware, cocktail glasses and other cooling accessories in dozens of colors. HOST’s beverage accessories solve everyday problems with creative engineering. From versatile wine accessories to chilling drinkware, these easy-to-use gadgets make life refreshing for everyone.