Cold bubble bag is made of biodegradable non-woven fabric, will not affect the flavor, you will a . The filter bag can be used for hot and cold brewing coffeeThe structure is good-the coffee filter bag has no seams at the bottom and strong double stitches on both sides, which can withstand any , shaking or boiling process. The fine mesh allows water to freely the coffee grounds, whether it is coarse, medium or fineSize-The mesh brewing drawstring bag is 4 x 6 inches or 10 x 15 cm, can hold a cup of coffee powder, fits a 32-ounce jar. The cotton drawstring design is easy to use, and the knot at the top can the safety of the itemNo mess and no precipitation-Help skip the messy cleaning work, use disposable coffee filter bags to make cold brew coffee easy, no coffee grounds, clean and tidy. Enjoy your cold brew drinkMulti- cold bubble bag-filter bag can be used for coffee, loose tea, herbs, spices, lavender, potpourri, powder, seasoning, hot pot, stew, foot bath and bamboo charcoalColour: whiteMaterial: non-woven fabricSize: 10 x 15cmPackage Contents:100 x Coffee filter bagOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm..Items from Sheng Xinshun's shop Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.