Simply add loose tea, enjoy a fresh cuppa, then rinse or wash and enjoy again and again.
How to hand wash:
Turn the bag inside out and compost all the spent tea leaves. Soak in cold water to help prevent stains. Hand wash in your sink with a little washing up soap, then give a quick rinse under the tap. Line dry.
For a deeper clean:
Soak the tea bag for a few hours in vinegar and water (apple cider or white vinegar) 1 part vinegar to two parts water. If the tea bag was used for tea with milk - hand wash after each use. If no milk, rinse and reuse 1-2 times (same day) and then hand wash.