The wooden cap is made of beech wood and is FSC certified. The inner cap is made of wood Bio Massa, natural resins and wax, starch, cellulose, natural oils. We recommend that you do not put the cap in the dishwasher so that it lasts longer. If necessary, you can replace the cap with a new one after using it for a while. It gives a good feeling to use something that comes from the earth and will eventually be absorbed by the earth again.
© 2021 Spiru