Cold bubble bag is made of biodegradable non-woven fabric and will not affect the flavor. The filter bag can be used for both hot and cold brewing coffee. The structure is durable—the coffee filter bag has no seams at the bottom and features strong double stitching on both sides, making it suitable for steeping, shaking, or boiling. The fine mesh allows water to flow freely through the coffee grounds, whether coarse, medium, or fine. Size: The mesh brewing drawstring bag measures 4 x 6 inches (10 x 15 cm) and can hold enough coffee powder for one cup; it fits a 32-ounce jar. The cotton drawstring design is easy to use, and the knot at the top helps secure the contents. No mess and no sediment—eliminates messy cleanup. Use disposable coffee filter bags to make cold brew coffee easily, with no coffee grounds in your drink—clean and tidy. Enjoy your cold brew. Multi-purpose filter bag—can be used for coffee, loose-leaf tea, herbs, spices, lavender, potpourri, powders, seasonings, soups, stews, foot baths, and bamboo charcoal. Color: White Material: Non-woven fabric Size: 10 x 15 cm Package Contents: 100 x Coffee filter bags Note: Only the items listed above are included. Other products are not included. Lighting and display differences may cause slight color variation between the image and the actual product. Measurement tolerance is ±1–3 cm.