Sachet



Although its most usual definition is that listed under "packet" (see link above), a sachet can also mean a small scented cloth bag filled with herbs, potpourri, or aromatic ingredients;  or a small porous bag or packet containing a material intended to interact with its atmosphere;  for example, desiccants are usually packed in sachets which are then placed in larger packages.

Cultural history
During the Chinese Warring States period a scented sachet (xiangbao) was an ornament worn on the body and used to absorb sweat, repel insects and ward off evils. In medieval Europe the sachet was known as a "plague-bag".

In various Indian cuisines, a "potli bag" is used to contain whole spices, so that they may be easily separated from the food after cooking. They are also used as fashion ornaments unto themselves.