As their name implies, coffee filters are used for brewing coffee. They come in various thicknesses and shapes to suit various coffee makers as well as both paper and metal varieties; eco-friendly cloth filters even exist that produce zero waste!

No matter which filter type you use, it’s crucial that the filter be regularly cleaned in order to prevent buildup and contamination between batches of beer. Paper and cloth filters can usually be cleaned quickly with just water and vinegar; adding some vinegar can help break down stubborn dirt or oil buildup more effectively. Furthermore, be sure to dry the filter completely after cleaning as this helps avoid mold and mildew growth.

Cloth filters should be cleaned using a non-abrasive scrub brush to effectively remove stubborn deposits of residue and oils, without damaging their fabric surface. You may also consider using non-toxic cleaning powder like Urnex coffee equipment cleaning powder as it will quickly and thoroughly cleanse the filter in one boil.

Stainless steel filters can be cleaned using soap and hot water, or by soaking them in equal parts water and vinegar – either way will do an effective job of disinfecting them. Vinegar has the power to kill bacteria, remove odors and grease deposits from surfaces, as well as break down mineral stains on mineral filters – an all-natural cleaning agent safer than bleach which should never be used on paper or metal filters. Alternatively, baking soda may help loosen stubborn deposits on these filters.