Using a paper tea filter without crowding it
A paper filter should hold the leaves without becoming a tightly packed sachet. Choose its size and support for the mug or pot you use.

Open the filter before filling it
A flat paper tea filter often has a folded base designed to open out. Give it that space before adding the dry leaves rather than forcing a measured portion into a narrow crease. Choose a size intended for your serving amount. The label for cups or pots is a useful starting point, but the actual leaf shape matters too: a bulky white tea occupies more space than the same weight of compact broken leaf.
Fill only enough for the leaves to expand when wet. Folding or clipping the top tightly around the dry portion can remove the room the filter was meant to provide. Follow the filter's own instructions for a flap, stick or holder. These different designs are not interchangeable, and a paper edge balanced loosely on a wet rim may slip into the drink.
Keep the opening above the water
Position the filter securely so water reaches the leaves without flowing into an uncontrolled open top. Pour carefully and keep the support stable. If the filter floats or collapses, stop and adjust the arrangement rather than pushing it down with bare fingers near hot liquid. A suitable holder can be helpful for a regular routine, especially with a wide pot whose rim does not support a small filter well.
Start the infusion according to the tea's directions and remove the filter at the intended endpoint. Let it drain briefly onto a suitable dish. Avoid squeezing or twisting fragile wet paper, which can tear and release fine particles. The convenience of paper is that the spent leaves can be removed together; it should not create a separate job of fishing them from the cup.
Store unused filters dry
Keep the packet away from kitchen steam, spilled water and strong smells. Use filters intended for food and hot tea rather than substituting craft paper or an unknown fabric bag. Disposal guidance depends on the product's materials and your local collection system, so check the packaging rather than assuming all paper-looking filters belong in the same bin. A reusable support should be cleaned and dried between uses. If you brew several cups daily, compare the convenience of paper with a washable basket, choosing the format you can use and maintain consistently.