In China, there are many kinds of ingredients that can be eaten by people on the table. One of them is spring bamboo shoots. Many people like to eat bamboo shoots. The spring bamboo shoots are very popular among many people, but due to the short preservation date of spring bamboo shoots. If you do not eat it in time, it will be broken, so how can spring bamboo shoots be stored for a long time? Everyone wants to know. Let's take a look at it together.
Spring bamboo shoots are a kind of food that we all very much like to eat. Many people are very fond of eating, but bamboo shoots have a short shelf life and are easily broken. Therefore, everyone wants to know how spring bamboo shoots can be preserved for a longer period of time. Here we are. Get up and find out.
Sealed storage method
To preserve bamboo shoots, we must first understand the knowledge of bamboo shoots aging. Bamboo shoots exuberantly metabolize under intense light and high temperatures, and bamboo shoots can undergo fiber aging. In addition, after the bamboo shoots are dug out, there is no water supply to the roots, and the loss of water in the fractures and the metabolism of the bamboo shoots themselves will also consume water. Therefore, fresh bamboo shoots must be preserved in order to weaken their water loss.
For bamboo shoots that have not been shelled, if the number is small, they can be eaten within 10 days and a half months. Then you don't have to bother to save and use sealed storage. Place bamboo shoots in containers such as vats, altars, jars, or cylinders, sprinkle with water, and then seal the mouth with a lid, etc., and place it in a cool, dark place. This method can not be stored for more than one month. If it is too long, it will deteriorate. If the mouth seal is leak-proof, it can be stored for about 30 days. If the mouth cannot be tightly sealed, it may only be stored for about half a month.
If the number of bamboo shoots is relatively large, they cannot be eaten in the short term and no shelling is done. That way, the method of burial can be used. Get large buckets, tanks and other large containers. Spread a layer of wet sand (humid corn, chaff, sawdust, etc.) on the bottom of the container. Then put the bamboo shoots upside down in the container. After stacking, cover the bamboo shoots with moistened sand that is not more than 10 cm thick from the tip of the bamboo shoots, and then cover the container with lid (if the lid is not tightly sealed, plastic film or poncho can be covered). Place in a cool, ventilated place. This method can store bamboo shoots for about 2 months.
Refrigerator method
Now that the refrigerator is very popular, many people will think of using refrigerators to preserve bamboo shoots. However, many people find that after the bamboo shoots are kept in the refrigerator for a certain period of time, they tend to age very badly. In fact, the use of refrigerators is indeed a good way to preserve fresh bamboo shoots. However, many people have improperly implemented specific methods to cause bamboo shoots to age.
They keep raw bamboo shoots in the refrigerator. Although the refrigerator's cold room is cold, although the metabolism of bamboo shoots is weakened, the air in the cold room is very dry and cold. Long-term storage will cause rapid dehydration fiber aging. Therefore, to keep the bamboo shoots without killing the cells in the refrigerator, it is best to seal the bamboo shoots with a fresh-keeping bag to prevent excessive water loss from bamboo shoots. It is not recommended to store raw bamboo shoots in the refrigerator for a long time.
Sometimes, in order to carry light, when we receive bamboo shoots from relatives and friends, we will peel off the shells. This situation cannot be saved in the previous step, otherwise the bamboo shoots may rot, or the surface is long and mild, the taste is changed, and the appearance is ugly. This situation must kill the bamboo shoot cells in order to maintain the taste and appearance of bamboo shoots.
One method of preservation is salt water bubbles. Put the bamboo shoots in a container that can seal the mouth (bamboo shoots can be cut and not cut), stack a layer of bamboo shoots to lay a layer of salt or coarse salt, and pour cold water until the bamboo shoots are not over 10 centimeters. Then use bamboo and other heavy objects to hold the bamboo shoots so that the bamboo shoots will not be exposed on the water surface and seal the mouth. This method can save the bamboo shoots for more than one year. When they need to be eaten, they can use bamboo shoots to float with fresh water for two days, or boil them and rinse them with water.
For bamboo shoots that have been husked, they can also be boiled and divided into boiled water and salt water. The method of boiled water is to boil the chopped bamboo shoots with clear water for half an hour, then remove them with clear water and put them in the fresh-keeping bag, put them in the freezer for freezing, or they can be dried or dried and stored. Bubble water can be.
The method of boiling salt water is to boil the sliced ​​bamboo shoots with brine for half an hour, and then let it cool down. After cooling, pour the bamboo shoots and salt water into a container and find a heavy object like a big stone to hold the bamboo shoots. Let bamboo shoots out of the water, and then seal the mouth, this method can save the bamboo shoots for about a year, when the food is taken out, soaked in water can be soaked to no astringency.
Saline bubbles:
Put the bamboo shoots in a container that can seal the mouth (bamboo shoots can be cut and not cut), stack a layer of bamboo shoots to lay a layer of salt or coarse salt, and pour cold water until the bamboo shoots are not over 10 centimeters. Then use bamboo and other heavy objects to hold the bamboo shoots so that the bamboo shoots will not be exposed on the water surface and seal the mouth. This method can save the bamboo shoots for more than one year. When they need to be eaten, they can use bamboo shoots to float with fresh water for two days, or boil them and rinse them with water.
Cold preservation:
The refrigerated and fresh-keeping bamboo shoots have a short period of time and are listed, which brings certain difficulties to processing and transportation. With cold storage can effectively extend the shelf life, but the preservation temperature can not be too low, otherwise, bamboo shoots protein denaturation, tissue disintegration, can not eat. From the perspective of cold storage, bamboo shoots are refrigerated at -18°C and can be refrigerated for more than one year. Fresh shelled bamboo shoots can be refrigerated for about 1 month at a temperature of -5°C and a relative humidity of 90% or more.
According to different refrigerated purposes, different refrigerating methods can be adopted. For the fresh market, we mainly use short-term refrigerated storage, and we choose the conditions of about 2°C and relative humidity of about 90% for cold storage. The food factory using bamboo shoots for processing can use cold-stored raw bamboo shoots at -18°C; alternatively, it can be refrigerated with fresh shoots at -5°C and relative humidity of 80% to 90%; hotel, guesthouse The catering service can be excised after peeling and refrigerated at about -5°C.
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