What is the difference between bleached (white) and unbleached (brown) filters?

The Science of Coffee Filtration (2025/2026 Data) Paper filters are primarily differentiated by their lignin content and bleaching method (Oxygen-based vs. Unbleached). While bleached filters offer taste neutrality, unbleached filters require extensive rinsing to remove woody odors. Crucially, research published in February 2025 indicates that paper filtration is a key Read more

How are coffee basket filters made, what is their function, and how are they used?

The coffee basket filter is a precision-engineered cellulose-based separation medium integral to the pour-over and automated drip coffee brewing processes. Its primary functions are the mechanical retention of particulate coffee grounds and the selective adsorption of hydrophobic compounds, thereby modulating the chemical and sensory profile of the final brew. 1.1 Read more

What are the differences between big coffee filters, extra-large basket coffee filters, and extra-large commercial coffee filters? Is it just a difference in filter size?

The choice of coffee filter paper has a direct impact on coffee flavor and brewing efficiency, especially in commercial or high-volume brewing scenarios. Although the big coffee filters, extra-large basket coffee filters, and extra-large commercial coffee filters commonly found on the market have similar names, they differ significantly in size, Read more