Onion storage technology

Optimal storage temperature: 0°C Relative Humidity: 65-70% RH Callus treatment: Hot air 27-35°C, 60-75% RH, 2 days. The edible part is a bulb. When the bulbs are hypertrophied until the leaves wither, they can be harvested in order to catch up with the cold collection in the morning market. If you want to go into a freezer, you can harvest them when the leaves are completely lodged, and store them in a refrigerator for up to six months.
Before harvesting onions in the Americas, callus should be firstly wounded, that is, air-dried in the field or open space for 2 to 4 weeks. The best temperature is 24 to 30°C, or it can be forced by manual hot air (27-35°C) for 48 hours. The onion balls are dried to a weight loss of about 5%, and the onions that are not fully processed are extremely susceptible to rot during storage. Onion balls can be stored at 0°C and 65-70% RH for 6 to 8 months. The dormant onion easily germinates and rots between 5 and 20°C, and the rooting easily occurs when the humidity is high (above 85% RH). Onions can be stored together with garlic, red onions, etc., but should not be stored together with other products, so as not to be adsorbed onions.
Onions can also be stored at higher temperatures (29-35°C) for a short period of time. The appearance of the onion at high temperature is not as good as that of the cryogenic storage, but it is suitable for dehydration and the resulting product is of better color. This is because the onion is stored at about 30°C. The sugar is lower.
Storage temperature (°C) 05 10 15 Room temperature (25°C) Storage period (month) 6-8 1-3 1-3 1-3 2-4

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Chinese Medicinal Herbs Seeds

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Drotrong Chinese Herb Medicines Co.,Ltd. , http://www.drotrongherb.com