Make the smart choice with Stock Your Home Wine Cups. Made of PLA, our cups are constructed from plant based materials such as corn or sugar cane. These BPA free cups are designed for durability and everyday use. Use them for cold drinks like water, wine, iced tea, soda, cocktails, beer, and more. Be sure to store them in a cool area, away from direct sunlight. Can withstand temperatures between 40° to 105° Fahrenheit.