Carry compatible beverages in this approximately 300 ML Heat Resistant Glass Bottle. The compact reusable container is designed for everyday beverage use and, according to the supplied product description, features heat-resistant glass construction. Because heat resistance is a safety-relevant property, confirm the glass type and manufacturer's rated temperature range before publishing specific temperature claims. Wash thoroughly before first use and after every use. Exact glass composition, lid material, sleeve, drinking opening, colors and dimensions vary by model. Heat-resistant does not necessarily mean safe for direct flame, stovetop use, boiling, microwave heating or extreme thermal shock. Follow the manufacturer's temperature limitations and avoid abrupt transitions between very hot and very cold conditions. Secure the lid before carrying, but do not claim leakproof performance unless verified. Glass can still break from impact, so handle carefully and inspect for chips or cracks before every use. Discontinue use immediately if damaged.