The cold smoke generator is made of stainless steel and is durable. Size: 21 18 4.5cm. The surface of the generator is screened to allow the air in the sawdust to circulate better. The spiral shape allows for slow burning, no flame, no external heat source, and can burn for a long time. The smoker"s smoker spiral is very suitable for cold smoked various foods, such as salmon, sausage, duck breast, filet mignon, pork, chicken, etc...It is suitable for barbecues in most parts of the world. Easy to use, just place the smoking sawdust in the spiral and ignite it with a lighter, candle or sawdust lighter (not supplied). Note: Make sure that the sawdust is level and the top of the spiral is visible. Use with various wood pellets, such as cherries, pecans, mesquite, apples, pecans, beech, etc. Since wood chips are very small, it can produce smoke for hours. Very suitable for smoking fish, meat, cheese, vegetables, etc.