GB/T 25873-2010Round-headed cabbage -- Guide to cold storage and refrigerated transport (English PDF)

2.1 Harvest

Harvesting should be carried out in dry weather, when it is harvested at maturity and formed tight ball leaves, harvest cabbage leaf ball size and shape Shape should be consistent with the inherent characteristics of cultivars.

Note 1. The harvest may result in premature withering leaves the ball, late harvest can cause cracking leaves the ball.

The best time to harvest is early in the morning without dew conditions. Harvest should be after the last irrigation 10d ~ 15d carried out (as Avoid excessive expansion of the ball leaves the organization, top bursting and leaf rot).

Humid weather before harvest cabbage should be refrigerated and refrigerated transport by drying.

Cabbage should be removed by mechanical damage or frost damage, even partial hurt.

Harvest should gently cut off from the outside of the blade root and retain external blades. The incision should handle clean, maximum retention of 3cm Thick stems, cabbage to avoid mechanical damage during processing.

2.2 Refrigeration requirements

You should choose late varieties of cabbage refrigerated.

Should choose quality intact, no bolting chilled cabbage. Depending on the cultivar, the white cabbage leaf ball weight should be Between 1.6kg ~ 3kg, red cabbage leaf ball weight should be between 1kg ~ 2kg.

None should be selected diseases and physical defects in cabbage refrigerated.

Should choose the ball leaves intact, no parasites, no mechanical damage and freezing of chilled cabbage. Cabbage surface should be clean and free from dirt or other foreign matter. Cabbage pesticide residues shall comply with the limit values \u200b\u200bof the national standard.

Frozen cabbage leaf ball should be kept dry, it should be at least one external blade wrapped.

2.3 Refrigerated place

Cabbage should be stored in a maximum capacity of 500t of cold storage. The refrigerator should be disinfected prior to the elimination of insects and parasites Movies Sound, and to ensure ventilation and cooling.

Cabbage should be avoided with the release of ethylene products mixed storage may cause bursting ball of cabbage leaves, leaf yellowing and detachment, Lead to lower quality.

Timespan no more than 7d.

2.4 Refrigerated Method

Cabbage can be frozen in bulk or in standard container refrigeration.

Cabbage should be refrigerated bulk of ventilation in the vertical direction, stacking height does not exceed 3m.