T/DTHH 003-2024 Active Group standards

T/DTHH 003-2024 Drying processing technical specifications for Huanghualei in Datong

Publish Date: 2024-07-29 Implement Date: 2024-08-24 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/DTHH 003-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Vegetables and their products

Publish Date: 2024-07-29

Implement Date: 2024-08-24

Pages: 5 pages

Scope

Main technical content: For greening (steaming), according to the process requirements, the steam greening method of a dryer is selected. The dried daylilies are spread on a tray with a thickness of less than 5 cm, and the steam temperature is set at 140℃. After 10 minutes, the daylilies are greened. For greening in a greening room, the daylilies are spread on a tray with a thickness of less than 10 cm, and the material temperature is controlled at 70℃–80℃. After 30 minutes, the daylilies are greened. For drying, after greening, the daylilies are dried in a dryer at a temperature between 90℃ and 120℃ to remove the remaining moisture, reducing the moisture content to about 20%. The drying time is approximately 40 minutes. Then, the daylilies are dried at a temperature of 50℃–90℃ to further reduce the moisture content to about 5%. The drying time is approximately 50 minutes. For drying in a greening room, the temperature is set at 45℃–75℃, with repeated heating and moisture removal. The drying time is 10 hours, and the moisture content of the daylilies is reduced to about 8%. After drying, the daylilies are cooled and rehydrated, and the moisture content is about 15%.