When the bottles are properly empty, they can be disposed of with the plastic waste, including the cap. Our bottles and caps are made of PE and PP plastic and both types of plastic are easy to recycle. Please dispose of the empty bottles in your plastic waste so that they can be recycled into a new product. In the unlikely event that you want to throw away a bottle that still contains remover or cleaner, throw it away with the small chemical waste at your local recycling centre. As every municipality has different rules for waste separation, we recommend you always check and follow the local guidelines.