The Latest Methods for Long-Term Storage of Winter Spinach

Spinach is a relatively popular vegetable, with autumn spinach, spring spinach, and so on. However, with off-season cultivation, it can basically be grown all year round. When growing spinach in winter, if it cannot all be sold after harvesting, then we need to do a good job of long-term storage for the spinach to prevent it from being damaged by frost. So how should winter spinach be stored long-term? Let's take a look together with the editor below!

1. Combined-Bed Frozen Storage Method

For combined-bed frozen storage, you first need to select soil where the spinach grows vigorously as well as the combination for freezing and storing together with it, with each combination being about three beds. First, cut off all the roots of the spinach to be frozen and stored, keeping the depth at about 1.5 cm into the soil. When cutting off the roots, be careful to keep the plants neat. Then fold the left and right beds of the three beds of spinach over onto the middle frozen-storage bed. With the leaf parts facing down and the roots facing up, combine the three beds of spinach into one bed. On the day of storage, cover it firmly with soil and pat it gently firm to ensure it is sealed top and bottom and prevent sneaky winds from entering.

2. Above-Ground Frozen Storage

One week before harvesting the spinach, first level the frozen-storage site, then splash water to ensure the soil surface will not thaw. When storing, scatter some vegetable leaves and the like on the ground as a base. Then tie the spinach into bundles and place each bundle close against the others on top. Then cover around the spinach with vegetable leaves, straw, and the like to a thickness of about 10 cm. When the inside of the spinach freezes, cover it with another layer of sand about 10 cm thick to prevent the spinach leaves from losing water and lowering their commercial value.

3. Storage Without Ventilation Channels

In a place with shade, dig trenches level with it, with a trench width of about 30 cm. The depth should be similar to the height of the spinach, not too deep, and the distance between each trench should be kept at more than about 20 cm. Tie the spinach to be stored into bundles and place them upright in the trenches with the roots facing down. Then scatter dry soil over the spinach, just enough to cover it. Then as the temperature continues to drop, carry out covering with soil in batches. The soil covering should ensure there are no gaps, playing a role in windproofing and moisture retention. Finally, the temperature is best kept at around minus five degrees Celsius, leaving the spinach in a slightly frozen state.

4. Ordinary Frozen Storage

Ordinary frozen storage means letting the spinach that needs cold storage freeze on the ground at night, while it can thaw again and be harvested at noon. When harvesting, keep the root length at about 1.6 cm, clean off the soil, and then sort and tie into bundles. Place them in a cool place to dry off the dew and lower the temperature of the plants. Wait until the weather gradually turns colder before carrying out frozen storage; the storage place should have good shade. Level the ground, then dig suitable storage trenches, with the distance between trenches kept at about 12 cm. Place them in the trenches with the roots facing down, with the thickness controlled at about 25 cm. Wait until deep winter before adding a straw mat cover, and control the temperature inside the trench between minus seven degrees Celsius and minus six degrees Celsius.

The above is a brief introduction to how to store winter spinach long-term. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!