This coffee filter paper package contains 200 sheets of unbleached No. 4 filter paper. Please confirm the size before purchase. When using, fold it and place it in the filter cup first. Soak it with hot water before adding coffee powder. It has a capacity suitable for 8-12 cups of coffee and is compatible with most filter cups, pour-over coffee machines, and some American-style coffee machines. The material is pure raw wood pulp, treated with a special process to resist tearing. It can remove coffee oil and residue, improving the uniformity of extraction. The unique design is specifically for pour-over coffee. The bottom and sides have folds to guide the water flow, fitting perfectly with the conical filter cup. The thickness is moderate, balancing the filtration speed and the ability to intercept fine powder, avoiding over-extraction or clogging. Material: Paper Mache.