We have received many orders for Linen Coffee Filter from Okai Mafu Shoten. Compared to paper filters, I feel that it brings out the natural sweetness and richness of the beans. It may be similar to a flannel drip. You can use it for a long time until it is torn. It is an eco-friendly product.

Okai Mafu Shoten's Linen Coffee Filter
https://www.shokunin.com/en/okai/coffee.html