According to experts, after the yam was frozen, the nutritional value was not lost, or it could be eaten with confidence. In the northeast and some other areas, there are special cuisine made with frozen yam!
However, for the average family, it is better to keep the yam from freezing. (The average family is not that big, the yam does not look good after freezing, and it also has a lot of water, which is particularly ugly, and there is a bit of strange smell.) How should it be preserved? What?
The preservation method of iron stick yam is similar to potato, sweet potato, and other tuber crops, and is suitable for placement in a cool and cool place. Because the iron stick yam is easy to oxidize with the oxygen in the air, browning is also formed when it comes in contact with iron or metal. Therefore, when cutting yam, it is best to use a bamboo knife or a plastic blade; if there is a growing segment, there is no need to use a knife. , you can first draw a line on the skin and then hand-fold into sections. The incision is easily oxidized and can be soaked with rice wine, then blown dry with a hair dryer to promote wound healing, then wrapped in napkins and placed in the corner of a cool wall.
At present, there are the following five methods for the preservation of commonly used iron stick yam:
1, room temperature ventilation method
The density of authentic yam in Wenxian County is extremely high, and the fresh produce is very strong. Because the soil structure of the Jiaozuo-Huayao-producing area in Henan Province is rather special, the yam that grows out is also strong and resilient. And after cooking, the texture is dry, noodles, sweet, simmer, and won't fall apart if cooked for a long time. Because of the high density of fresh produce, it is strong, so it is kept in a ventilated place at normal temperature. Generally, it can be stored for 3-6 months without any problem. Usually, it can be placed in a dark place on the balcony.
Precautions: Do not use plastic bags to hold iron stick yam, so that the permeability is not good; do not use newspapers to wrap bar yam, the lead in newspapers will go into the interior of yam unfavorable for health; can be wrapped in napkins and put in a cool and dry ventilation Stored at.
2, rice wine soaking method
The iron rod yam that we buy in the market is usually not complete, because after the iron rod yams are dug out from the ground, the growers will cut off the “steamed bread” for planting at the next planting time. To preserve long-term preservation of the yam after “halter”, growers usually use rice wine to soak the yam cross section. This is because fresh yam is easy to oxidize with the oxygen in the air. We can also refer to this method when we keep it at home. The yams that are not eaten after the break are cut, first the bubble rice wine is cut, then blown with a hair dryer to promote wound healing, wrapped in a napkin, and kept at the corner of a cool wall for several months.
Note: The new yam that has just been excavated is usually large in water vapor, and the surface will be slightly wet. If you want to preserve this yam, you need to dry it on the balcony and then close it, but you must not allow direct sunlight or baking.
3, refrigerator method
Research shows that fresh iron yams can be preserved for 3 years at 1-4 degrees. If your refrigerator has sufficient freezer space, you can refrigerate the yam that is temporarily not eaten. In order to maintain the taste of the best preserved with skin, and do not wash the dirt on the yam, so when you eat to keep the original flavor to the maximum extent, just wrapped with plastic wrap or placed in a sealed bag.
Precautions: The yam is best separated from the fruits, because the fruit will release ethylene during the slow ripening process at a low temperature, which will lead to accelerated growth and deterioration of the yam.
4, cold storage method
This method is suitable for mass preservation of iron yam.
5, cutting method
For friends who do not have enough freezer space to cool, it is also a good choice to use the frozen method of cutting iron bars and yams. The yam can be peeled and diced and then packed in plastic bags according to the approximate amount of each time it is eaten. Then it can be quickly frozen in a frozen drawer. When it is eaten, there is no need to thaw it. After the water is boiled, it can be broiled to ensure iron. Stick yam nutrients are not lost.
Note: Because yam and apple are rich in iron, browning occurs after cutting, which will not affect the quality of yam and can be eaten with confidence.
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