Excess bitterness in coffee typically comes from over heated water, coffee fines (micro granules), and over extraction. The AeroPress Micro coffee filters do their part by removing coffee fines and sediment from the brew, and so minimising excess bitterness.
 
How to Use: Like any coffee filters, its recommended to rinse the coffee filter with hot water immediately before use. This will removes loose paper fibres or flavours making their way into the cup.