Waxed paper is usually used to wrap things to keep them moist and fresh. It is highly water resistant, moisture and grease proof. Before coating, the base paper should be checked to ensure the liquid wax impregnated in the product has dried. The sheet product can be dyed or coated in a variety of colours or patterns then waxed to make it water proof. This product is mainly used for a variety of food packaging (such as candy wrappers, paper bread, noodle boxes, cartons of biscuits and packaged meat products).
These containers can be used for steam cooking, but because of the wax content they are best suited for low temperature cooking or heating. Unlike aluminium foil they are not designed for grilling, baking or high temperature food preparation.
Greaseproof paper (also known as baking paper, oven paper, steaming paper] is a medium designed for toasting or baking When baking biscuits or other small breads the layer of greaseproof paper on the tray helps keep the baking tray clean and prevents food sticking to the [usually] aluminium baking tray. This is especially useful in the case of sugar rich baked good where the sugar may crystallise and stick to the aluminium tray.
Grease proof paper is also used to line the insides of cake baking containers so the finished product does not stick and crumble when removed form the pan. when baked cookies in the food pad below to keep the pan clean.
Greaseproof paper can also be formed into bags, such as the type KFC chicken wings are usually served in. It's primary purpose in baking is to eliminate the need to use oil as a non stick aid and to stop hot oil from seeping through the container.