Simply expressed, recycled content refers to a product containing recycled material, whereas recyclability refers to the possibility that the material we recycle will be correctly processed and turned into a new item. There are three main types of recycled content: paper, plastic, and metal. Recycled paper contains fiber from previously used papers that has been refilled with wood pulp or cotton fibers. The paper may be bleached to reduce contamination with dyes from previous uses. Recycled paper can be used for writing instruments, book covers, and cardboard boxes. It can also be molded into products such as milk jugs and food packaging. Recycled plastic contains both organic and inorganic materials. Organic materials come from waste plastic collected through recycling programs while inorganic materials are sand or glass particles used as fillers to increase the toughness of the plastic. Inorganic materials do not decompose under normal conditions and therefore cannot be used to make recycled plastic useful for toys or food containers. However, some plastics can be composted rather than recycled because they contain little or no plasticizer, low molecular weight compounds used to soften plastic during processing and increase its flowability. Examples of these types of plastics include old food containers, old medicine bottles, and empty drink cans.