It's necessary to clean your bowl piece from time to time. To avoid any damage of the anodized surface of your aluminium bowl piece, you should ONLY USE 90-99% isopropyl alcohol during the cleaning process. Let it soak for a few hours and, if necessary, use a small brush to get it clean. Finally wash it thoroughly with warm water and soap

  • NEVER USE metal objects to clean your bowl piece!
  • NEVER USE ultrasonic cleaners, pressure washers or similar machines or methods!
  • NEVER USE glass cleaners, bong cleaners or other chemicals!
  • NEVER boil your bowl piece in water!



You may be asking why we use aluminium? There has been a lot of misinformation regarding the safety of aluminum but studies show, that there are extremely low risks of harmful or toxic effects.

So, why did we choose aluminium? We choose it for you! It´s amazing strength and durability were just the beginning! When you throw in its incredible low weight count, it`s no wonder we chose aluminum. Believe it or not, the FDA has published a study about aluminium and it's extremely low risks and can even be found in a large variety of every day products like food, cosmetics and even pharmaceuticals. A high percentage of all cookware and kitchen utensils is made from aluminium.


"Anodizing is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. The process is called anodizing because the part to be treated forms the anode electrode of an electrical circuit." Wikipedia 

This non-hazardous and non-toxic process turns the surface of the aluminium into aluminium oxide, which increases abrasion and corrosion resistance. This oxide layer is heat resistant up to 650°C.


  • METALFORMS products are no toys! Keep products away from children!
  • Product could get HOT during extensive use! Please be sure not to touch a hot product to avoid any injuries!
  • Product could contain SHARP EDGES that pose a safety hazard! Sharp edges are not to be touched, handled, hit or pressed by hands, fingers or thumbs.