I feel like we need a "Do Not Use" list.

This thread lists materials that have been found to be dangerous in smoking devices. Please check this list and read the other articles in the sidebar before planning or building your pieces. Although this list is not objective in any official way, the contributors and myself strive to maintain accuracy. If a material is questionable, we will indicate it as such and recommend against it's use until it is proven dangerous or safe to use.

If you would like me to add a material to this list, please post a comment with a brief explanation as to why it is unsafe. If you have any scientific sources, please post those as well. Thanks guys, and be safe!

Dangerous:

• Certain woods -Details (Thanks Cyc68!)
• Soda cans -Aluminum is safe, the coating used in cans is not.
• Zinc -Metal fume fever
• Copper -Metal fume fever Also, coper oxidizes VERY easily, which can release harmful chemicals.

Alt: Brass

• Any galvanized metal -Metal fume fever
• Treated wood
• PVC
• Plastic bowls or stems (Do not use bic pen tubes!)

Alt: Zebra pen tubes (stainless steel, non-coated)

• Seashells -Calcium carbonate inhalation (Thanks Coachskau!)

Misunderstood:

• Aluminum
• Brass (Many screens, bowls, pipes, and stems are made of this)
• Polyethylene
• Polycarbonate
• Acrylic

Needed Information

• New source for seashells (old article deleted)
• Proper sourcing for plastic materials used for stems/bowls other than common sense
• Source proving brass as a safe material
• Source for treated wood
• Source for PVC
• Source for soda cans