honopū developed an international protected product design of a screw cap for food and care product containers, which does not require the addition of plastics or any other synthetics. The closure is designed for containers of all kinds and is based on the materials glass, solid wood (or stainless steel) and natural rubber. It enables a complete recycling management according to the cradle-to-cradle principle. All components are purely mechanically connected with each other. To the best of our knowledge, our product design offers the world's first plastic-free screw cap suitable for use with food. We offer a large product variety such as drinking and baby bottles, coffee-to-go cups, storage jars, food containers and cosmetic jars for private and commercial use.