suodatinpusseihin

Suodatinpusseihin, known in English as coffee filters, are disposable paper cones or baskets designed to hold coffee grounds during the brewing process. Their primary function is to allow hot water to pass through the coffee grounds while retaining the solid particles, resulting in a clear liquid coffee. The porous nature of the paper is crucial, with the size and density of the pores influencing the rate of filtration and the final taste of the coffee.

The invention of the modern coffee filter is credited to Melitta Bentz, a German housewife who patented her design in 1908. Her innovation involved using blotting paper placed in a metal sieve. Prior to this, coffee was often brewed using cloth filters or even without any filtration, leading to a coarser, more sediment-laden beverage.

Coffee filters are typically made from wood pulp, a sustainable and biodegradable material. They come in various shapes and sizes to accommodate different coffee brewing systems, such as cone-shaped filters for pour-over devices and basket-shaped filters for automatic drip coffee makers. Some filters are also bleached, either using a chlorine-free process or chlorine, which can affect their appearance and, for some, their perceived taste. Unbleached filters are a popular choice for those seeking to minimize chemical exposure. The disposal of used coffee filters is generally straightforward, often contributing to compost or household waste.