First, water soaking: water can insulate the air, make the mushroom discoloration slow, full body posture. However, it is required that the quality of water contains low iron content and must not be soaked with iron utensils and water with high iron content. Second, sodium metabisulfite treatment: first with 0.01% sodium metabisulfite aqueous solution rinse mushrooms 3-5 minutes, and then soaked in 0.1% sodium metabisulfite solution for half an hour, recently drained and put into a plastic bag storage. Third, more than a long time preservation: plant growth retardants than long. Mushrooms are soaked in 0.001%-0.1% aqueous solution for 10 minutes, drained, stored in a plastic bag, stored at room temperature 5°C-22°C for 8 days, and can effectively prevent browning, delay aging, and maintain fresh.
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