T/DTHH 004-2024 Active Group standards

T/DTHH 004-2024 Fresh Datong Huang Hua Processing Technical Specifications

T/DTHH 004-2024

Publish Date: 2024-08-22 Implement Date: 2024-09-22 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 004-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Vegetables and their products

Publish Date: 2024-08-22

Implement Date: 2024-09-22

Scope

Main technical content: After the Datong yellow chrysanthemums are transported to the processing plant, they should be loosely placed in plastic recycling boxes and promptly stored in the pre-cooling warehouse for pre-cooling, ensuring that the core temperature of the Datong yellow chrysanthemums remains between 3°C and 8°C. The plastic recycling boxes should comply with the provisions of GB/T 5737. 7.2 Selection Damaged, rotten, or bloomed Datong yellow chrysanthemums, as well as foreign impurities, should be removed. 7.3 Cleaning The selected Datong yellow chrysanthemums should be cleaned in an air washing machine to remove surface impurities. The water used for production and processing should comply with the provisions of GB 5749. 7.4 Blanching The Datong yellow chrysanthemums should be evenly placed in the blanching machine, with the blanching water covering the surface of the raw materials. The water-to-material ratio should be 4:1 to 8:1. The temperature of the hot water in the blanching machine should be above 85°C, and the blanching time should be 0.5–1 minutes. 7.5 Cooling After blanching, the Datong yellow chrysanthemums should first be cooled in room-temperature water and then immersed in cooling water at around 0°C to quickly cool to a core temperature below 10°C. The water used for production and processing should comply with the provisions of GB 5749. 7.6 Dehydration The Datong yellow chrysanthemums should be dehydrated in a vibrating drainage sieve. 7.7 Quick-freezing After dehydration, the bud-tipped Datong yellow chrysanthemums should be placed in a quick-freezing warehouse and frozen at a temperature of -35°C to -40°C, with the core temperature reaching below -10°C within 2 hours. After dehydration, the two-bud Datong yellow chrysanthemums should be placed in a quick-freezing machine and frozen at a temperature of -35°C to -40°C, with the core temperature reaching below -18°C within 15–30 minutes.