*image from web
A tea bag is a container, usually paper, but in some cases cloth, that holds loose leaf tea. It is placed in a container (cup or pot) and boiling water is poured over it. The tea bag is water permeable, so the boiling water saturates the tea leaves. The steeping process allows the flavours, and colour to be leached out of the leaves and into the water making an infusion or tea. When the tea has steeped the desired time, the bag is removed from the container. At this point the teabag does what it was designed to do, it keeps all the vegetable matter of the tea leaves out of the infusion, thus making the consumption of the tea much more pleasant.