Metal Coffee Filter Made of Stainless Steel
The metal coffee filter is made of ultra-fine stainless steel woven mesh. It is more environmentally friendly than paper and cloth. Metal coffee filters have strict requirements on the material, and must ensure that the material has sufficient corrosion resistance so as not to rust. Therefore, 18/8 stainless steel has become its preferred material. It contains 18% chromium and 8% nickel, and is recognized as a food grade stainless steel.
Coffee is one of the most popular beverages in the world. A good coffee filter can not only filter out the impurities in the coffee, but also retain the taste of the coffee. In recent years, environmental protection awareness has increased. Many coffee filter paper manufacturers have developed metal coffee filters and coffee drippers, which are made of food-grade stainless steel to replace less environmentally friendly filter papers and can be reused after cleaning.
Types of Metal Coffee Filter
There are mainly the following types of metal coffee filters
- Cone coffee filters
- Pour over coffee dripper
- Cold brew coffee filters
- Coffee filter basket
- Aeropress coffee filters
- French press filter
The Filter Mesh
In order to make the filtered coffee pure and free of impurities, the material of the filter mesh is very important. The metal coffee filters on the market usually use super-fine mesh (200-300 mesh/liner inch) which is made of 304 stainless steel, and some more superior coffee filters use 316 stainless steel, and up to 400-600 extra-fine filter mesh.
Color and Surface Treatment
The support frame of the metal coffee filter is electropolished, and the surface is as bright as a mirror. In addition, according to user preferences, the surface of the stainless steel coffee filter can be titanium-plated to make it into various colors, such as golden yellow, rose gold, and so on.
Pros and Cons
- Pros: reusable, more environmentally friendly, and the coffee flavor is more original.
- Cons: the oil cannot be filtered, and the fine powder is easy to cause excessive extraction and cause bitterness; the fine powder will enter the coffee through the filter.
Suggestion: After use, use a clean brush to lightly brush, and then use baking soda to remove the oil, so as not to affect the taste of the next brew. The metal coffee filter and dripper can retain oil, and the taste will be thicker and closer to the original taste of coffee beans. In the blind test, the difference with the filter paper can also be felt.