How to Use a Metal Coffee Filter? Common Issues and Improvement Methods for Pour-Over Metal Filters

Understanding Metal Filter Dripper Issues

While metal filter drippers offer the advantage of eliminating paper filter costs and better preserving coffee oils, they tend to cause water pooling when brewing light roast coffee beans.

The primary cause of water pooling in metal filter drippers is poor gas exhaust. The lack of exhaust groove design makes it difficult for gases produced during brewing to escape, leading to water accumulation. When brewing light roast coffee beans with metal filter drippers, fresh beans can still help reduce pooling issues.

You might try placing a cake filter paper in the metal filter dripper. The principle is to help "create exhaust grooves" in the metal filter dripper, improving gas exhaust and thus enhancing extraction.

This approach uses the metal filter dripper as a support, combined with cake filter paper's excellent exhaust characteristics to significantly improve flow rate and flavor issues.

Practical Solutions and Recommendations

Overall, using cake filter paper can effectively resolve pooling issues. This provides a new usage method for those who already own metal filter drippers at home. Generally, medium roast coffee beans can be brewed without filter paper, while light roast beans with severe pooling issues can benefit from cake filter paper to solve the problem. Give your old equipment new life!

Recommended Brewing Parameters from FrontStreet Coffee

Pour-over: V60 dripper, Fuji R440 grind setting 3.5, water temperature around 90°C

French Press: Recommended grind setting 4, water temperature 90°C

Siphon: Recommended grind setting 4, water temperature 90°C~91°C

AeroPress: Recommended grind setting 3.5, water temperature 90°C

Important Notice :

前街咖啡 FrontStreet Coffee has moved to new addredd:

FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou

Tel:020 38364473