METTLE is not designed for use at high temperatures used in smoking concentrates. Do not use a butane torch or expose to prolonged heat. Stainless steel has low conductivity; however, heat can increase temperatures to temperatures unsafe to handle. Use caution and as instructed.

We recommend rinsing out between uses to reduce buildup of residue and tar.

Disassemble your METTLE for easier access to the inside of your bowl when giving it a deep clean. Using alcohol and a cotton swab, wipe clean. Rinse and dry before using again.

METTLE functions with most stainless steel and glass screens. The wide rim bowl tapers down to 10mm, allowing for any size screen in between. There is also a location underneath your bowl for 15mm and 1/2-inch screens. We do not recommend using metal screens for more than 20 uses before changing, even if your screen is located in the inner chamber of your bowl. Cheap screens are known to degrade over time.

Yep! Thanks to Mettle’s Grade 316 Stainless Steel construction, your bowl is safe to grab. Glass and cheap metal bowls heat up faster than stainless steel, additionally Mettle’s multi-part assembly reduces heat transfer between parts.

Absolutely. METTLE is made of surgical grade stainless steel.