Cold bubble bag is made of biodegradable non-woven fabric, will not affect the flavor, you will get a very smooth taste.The filter bag can be used for hot and cold brewing coffeeThe structure is very good-the coffee filter bag has no seams at the bottomand strong double stitches on both sides, which can withstand any agitation, shaking or boiling process.The mesh allows water to freely soak the coffee grounds, whether it is coarse, medium or Size-The mesh brewing drawstring bag is 4 x 6 inches/10x 15 cm, can hold a cup of coffee powder, fits a 32-ounce Mason 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 coffeefilter bags to make cold brew coffee at home easy, no coffee grounds, clean and tidy.Enjoy your homemade smooth cold brew drinkMulti-purpose cold bubble bag-filter bag can be used for coffee, loose tea, herbs, spices, lavender, potpourri, herbal 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 displaysmay cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.