IQF shiitake mushroom processing technology

The mushrooms used for quick freezing should have complete, white, elastic caps, no mud roots, no pests, no mechanical damage, and no hollow, white core, etc. The stem should not exceed 15mm, and the cap diameter should be about 30mm. Wash 2 to 3 times to remove mud, sand, dirt, etc. Blanch in 100℃ hot water for 3 to 5 minutes. Strictly control the water temperature to prevent the mushrooms from changing color. After blanching, quickly cool in a cold water pool to below 10℃.