Is Muslin Fabric Biodegradable and Compostable?

Yes—when made from untreated cotton, muslin fabric is both biodegradable and compostable under the right conditions.

As a plant-based material, muslin can naturally break down with the help of microorganisms. For best composting results, the fabric should be cut into smaller pieces, kept in a well-aerated and moist compost pile, and free from synthetic elements like dyes, coatings, or zippers.

While not all muslin is suitable for composting, undyed, unprinted, and zipper-free cotton muslin bags offer a low-waste, circular alternative—ideal for eco-conscious brands and consumers.