Waste that accumulates during food production is usually thrown away. This is also true for rice husks. German sportswear manufacturer Puma uses this waste material  for their eco-friendly trainers `Re-Suede´.

Coffee grounds are not noxious, but they do produce a lot of waste. The founder of the Berlin start-up company Kafform combined this so-called waste with biopolymers and formed a cup from it.

The times when people with celiac disease (gluten intolerance) had to renounce beer are over. Due to specific methods, the gluten protein can be separated out, after the brewing process.

Lego bricks are still made of plastic, which consumes a lot of oil. However, there has been a recent change in thinking. In addition to manufacturing products from bio plastics, by-products accrued from the wood industry are gaining in importance as a basic raw material for toy manufacturers.

Some consumer goods manufactures are increasingly trying to replace conventional plastics with bio-based plastic. By doing this, the dependence on petroleum is reduced and carbon dioxide can be saved.

When brewing coffee, less than ten percent of the coffee bean’s aroma is released. The rest ends up in the compost bin. These coffee grounds, however, are an ideal raw material for the production of sustainable textiles.

Every year, millions of tonnes of milk, which cannot be used for consumption, are accrued. Fibres can be made from milk proteins. In comparison to the production of cotton, this process uses considerably less water. 

Olive leaves are a waste product from olive harvests and are frequently burned as green waste. They contain valuable ingredients with which biodegradable and skin-compatible premium leather can be produced.