These glass jars with cork lids are crafted from lead-free, premium borosilicate glass, making them thinner and lighter. They are non-toxic, odorless, and 100% BPA-free, capable of withstanding thermal shock, scratches, and cracks. Suitable for both hot and cold temperatures, these jars can endure from -20°C to 150°C. The cork lid ensures an airtight seal to keep food fresh and prevents liquids or solids from getting wet or absorbing odors. The natural wood lid provides optimal sealing. Ideal for storing preserves, jams, chutneys, rice, sugar, flour, tea leaves, coffee beans, vanilla, spices, cookies, and more. The transparent glass allows easy viewing of contents, making it convenient to find and save time.