The edible fungus sterilizer is made by ourselves, and the specific steps are as follows.

A, manufacturing steam generator. Take three old petrol drums (the residue inside should be cleaned), two of which are welded with a long 15cm iron pipe at the drum mouth as a steam outlet, and at the bottom of the drum, diagonally opposite to the drum mouth, a 2cm diameter iron pipe is welded as a water supply pipe; In another oil drum, an iron pipe with a diameter of 2 cm is welded at the bottom of the drum in the same way, and the water valve is used as a preheating tank.

Second, scientifically build stoves. First, build a furnace with bricks. The width of the furnace is equal to the height of the oil drum, and the length is equal to the sum of the diameters of the two oil drums. The furnace is made of 10 steel bar, with a thickness of 16 mm and a length of 30 cm, with a blower duct on one side. Two oil drums welded with steam outlets are laid flat on the furnace side by side, with the steam outlets on them and connected with high-temperature resistant plastic pipes; Put the preheating tank flat between two oil drums, so that the three oil drums are "△" shaped. The water supply pipe is connected by a transparent plastic pipe and used as a water level gauge.

Third, build a sterilization stove. On one side of the exhaust pipe, level the ground at a distance of 1.5-2m from the furnace, then spread two layers of film with an area of 4× 4m, put the steam pipe on the film, lay bricks on the film, leave the position of the steam pipe with a height of 12cm and an area of 3× 3m, spread a layer of sacks on the brick, and then stack the material bags. This sterilizer can steam 3000-4000 kilograms at a time. After the material bags are stacked, cover the material piles with 3-4 layers of films (8× 8m), fold the surrounding and lower layers of films, press them with woven bags filled with sand, and then start fire sterilization. When the material temperature rises to 100℃, it takes 12 hours. The standard for the material temperature to reach 100℃ is that the film covered on the material pile is fully bulged, and steam emerges below the material pile. Then, the pile is stuffy for 12 hours to achieve the purpose of complete sterilization.