Wax paper (waxed paper) is a kind of paper that is made moisture proof through the application of wax.
The practice of oiling parchment or paper in order to make it semi-translucent or moisture-proof goes back at least to medieval times. The invention of wax paper is often credited to Thomas Edison, although Gustave Le Gray used a type of waxed paper for photographic negative processing.[citation needed] Wax paper is commonly used in cooking, for its non-stick properties, and wrapping food for storage, such as cookies, as it keeps water out or in. It is also used in arts and crafts.