Tea canisters are containers specifically designed to store tea leaves, ensuring their freshness and flavor. They are often made from materials like metal, glass, or ceramic, which help protect the tea from light, moisture, and air. Many tea canisters come with airtight seals to keep the contents safe from environmental factors that can degrade quality. These canisters come in various sizes and designs, making them both functional and decorative. Some people collect unique tea canisters as part of their tea culture, while others use them to organize different types of tea like green tea, black tea, or herbal tea.