Buying cold storage for vegetables and summer foods in Iran
Zarei Refrigeration Industries, with more than 20 years of brilliant history of producing refrigeration products, includes all types of cold storage, all types of standing industrial refrigerators, industrial box and standing freezers, dairy equipment, water coolers, milk coolers, and hot and cold toppings.
The vegetable refrigerator is one of the products produced by this factory, which has created a special place in the market due to its many uses. This product is considered as industrial cold storage and is a place to store vegetables and summer fruits.
Zarei Refrigeration Industries produces all kinds of refrigeration products, including cold storage, industrial refrigerators and freezers, kitchen equipment, display refrigerators, water coolers and milk coolers, hot and cold toppings.
Cold storage is one of the products of the refrigeration industry, which is offered in various types, including:
What is the cold storage of vegetables and summer fruits?
Vegetables and summer herbs are among those products that are sensitive to temperature and should be kept in ideal conditions. If they are kept in unfavorable conditions for 2 or 3 days, they will wither and shrivel, and as a result, it will cause an unpleasant smell.
The freshness of the product has a great impact on the price, and if it is worn out during the release, its price will be greatly reduced. From late until now, the efforts of most people to maintain these products in all seasons of the year have been commendable. The need for a cold place has been seen to keep summer fruits and vegetables cool. But they have tried to maintain the initial quality of the product with various solutions so that they can be productive from the products.
With the progress of science and technology, it is important to produce a chamber or a chamber with refrigeration equipment that can meet this need; And it was called under the title of mortuary. After the vegetables and summer herbs were produced and harvested from the fields and gardens. It should be stored and processed in a suitable place and with a suitable method before supply and market. Otherwise, it will suffer corruption and decay. The spoilage of these products depends on factors such as temperature and humidity.
Solutions that reduce the process of product corruption. The decrease in temperature is during the storage period. The use of vegetable and summer vegetables cold storage makes it possible for us to store the product in all seasons of the year.
All kinds of summer vegetables and cold storages
Cool refrigerator: The temperature range of this type of refrigerator is from zero to above, which is used to store vegetables and summer fruits.
Freezing cold room: The temperature range of this type of cold room is from zero to low and it is suitable for storing protein products such as meat, frozen chicken. It is often necessary that food items enter the freezing tunnel before freezing.
Combined cold storage: These cold storages are a combination of above-zero cold storage and sub-zero cold storage, and each product is installed as separate partitions, and it is better to consider a separate hall for storing each product.
Cold storage conditions for vegetables
The storage of summer products and vegetables is under optimal conditions with temperature and humidity determined under the name of controlled atmosphere. If the temperature fluctuates, if it rises, it causes spoilage, and if it falls, it causes the product to freeze. If the humidity is not enough, the product will dry and perish.
Cold storages for fruit storage must be a combination of two gases, oxygen and carbonic gas. The process of regulating the concentration of these two gases is necessary for controlling the atmosphere.
Greenhouse and vegetable cold storage equipment
The cold room is equipped with various equipments for storing vegetables and greenhouses. Proper selection of components, proper installation and operation, devices, will help food cold store owners in better business management. Two important factors of temperature and humidity in any cold storage are necessary to maintain and ideal conditions of products. The more the temperature and humidity of the cold room is controlled, the more productive the products will be.
Storage conditions for vegetables in the cold storage above zero
By creating the optimal temperature, the above-zero cold storage increases the lifespan and maintains the original quality. The better the quality of the product, the higher the price, the more supply and demand it will have, and it will improve sales and make farmers more profitable. A table is included at the bottom of the article that shows the optimal summer temperatures. Without any chemical change and without damaging the product.
The optimal temperature for storing fruits is above zero, if they are kept at a temperature below zero, it loses its quality and creates an unpleasant appearance. In order to preserve the appearance of summer clothes and not to destroy them, they should be kept at a low temperature, and as a result, it prevents the growth and multiplication of microorganisms.
Efforts should be made in the preservation and storage of fruits and vegetables, care must be taken to ensure that the product does not spoil in terms of appearance, smell, taste and taste, and that the vitamins of the product are preserved. Partial deterioration of the product can affect the commercial value of the product, even though the product is usable, but this partial deterioration and change in appearance greatly reduces the price and sales process.
The process of food spoilage leads to two important parts, internal and external. The internal part is related to the inside of the fruit and the production of natural enzymes as a result of the existing organic materials and the external factors related to bacteria and microorganisms that cause the destruction of fruits and vegetables. It should be acknowledged that the simultaneous storage of fruits and vegetables together should definitely be done in ideal conditions.
This is possible if the temperature, humidity and breathing are completely the same. Otherwise, each should be stored in a separate compartment. Another problem that business owners may face is smelling part of the products. It should not even be kept together for a short period of time. As an example, potatoes are one of the products that emit a strong smell and can transfer to all kinds of fruits and vegetables and should not be stored with them.
Conditions for storing vegetables in subzero cold storage
Fruits and products can be frozen in pieces, chopped or pureed in sub-zero cold storage. The temperature range of these cold stores can be defined up to -12 degrees Celsius. Cooling the product makes it durable and preserves the quality, and the useful storage time of the product can be increased in this way.
The amount of humidity and air flow in the cold room is above zero
The presence of cold storage is considered an essential parameter for farmers and many industries. Most of the agricultural products such as fruits and vegetables are mass produced in the harvest season and their supply in the market may face a decrease in price. To avoid such a problem, they keep it in the cold room. This makes it possible to supply it to the market and sell it at a more reasonable price in the season of crop shortage and other than natural planting. The existence of cold storage and storage of agricultural products helps supply and demand and regulate the market and brings more profit to the farmer.
The use of cold storage has advantages such as increasing the life of the product, being profitable, helping to regulate the market, which has led to the widespread use of cold storage. Cold storages are designed in two types of above-zero and below-zero time periods and in the cabin and chamber models. Movable cabin cold storages can be used in different models due to the fact that they can be easily moved due to the variety in the design. These cold stores have advantages such as ease of management, control, service and maintenance, which makes it easier and more convenient than cold stores.
Most of the fruits and vegetables are stored in cold storage above zero, and if they are kept in a cold storage below zero, it will reduce the quality of the product and it will spoil. Only if the product is in the form of puree and can be frozen, can you use the time period below zero.
The difference between the vapor pressure of the products and the air in the cold room is a function of the relative humidity and the air velocity, and if the relative humidity decreases, the air velocity increases and as a result, the humidity decreases. Therefore, in ideal conditions, static air with 100% humidity in the cold room is above zero, which prevents the product from becoming moldy. In order for the product to remain healthy, the humidity should be slightly less than 100% and the air speed should be high enough to guarantee the quality.
product type | storage temperature | relative humidity | Storage period (days) |
cucumber | 7 to 9 degrees | 95 | 70 to 94 |
spinach | 0 to 1 degree | 90 to 95 | 7 to 14 |
an onion | 0 to 1 degree | 92 to 95 | 10 to 14 |
carrot | 0 to 1 degree | 90 to 95 | 120 to 210 |
Cold storage temperature of vegetables and summer vegetables
The optimal temperature for storing vegetables and summer herbs is usually above zero and higher than the freezing point. But some summer plants are sensitive to temperature and if they go above or below this critical temperature, they will be destroyed. For example, if the temperature exceeds 13 degrees Celsius, his skin will turn black.
Gas control around fruits and fruit cold storage
After the fruits are picked for storage in the cold storage, it consumes oxygen and expels carbon dioxide like a living product. For this reason, it causes damage during storage. If the amount of oxygen in the fruit cold room is controlled with seals and air seals. It is possible to increase the life span of the fruit at temperatures above zero.
If the product is placed under atmospheric control conditions and the fruit absorbs the necessary oxygen and the excess is removed by injecting nitrogen and by removing carbon dioxide, it causes artificial sleep. Therefore, product storage time can be increased with controlled oxygen, carbon dioxide, and ethylene. For example, apples can be preserved in this way for up to one year.
Technical specifications of cold storage for vegetables and summer fruits
The material of the body of the cold room is sandwich panel, which is produced by injecting polyurethane material for proper insulation. It prevents energy dissipation and as a result preserves heat and cold. The temperature range of the cold room is defined between -18 and +5 degrees Celsius. The dimensions of the cold storage are produced according to the customer’s order. The cold storage can be fixed or mobile, showcased or mobile. Cold storages are mold free. Insulation is produced from polyurethane materials. The compressor is the best brand in the market, and the condenser and evaporator are also the best brand in the market. This cold storage is suitable for restaurants, fruit warehouses, protein materials and slaughterhouses.
The principles of storing summer fruits and vegetables
The storage of some products in the cold room should be done under special conditions. Fruits such as bananas and apples should be placed in the refrigerator shortly before ripening, but fruits such as grapes should be fully grown and then placed in the refrigerator. Tomatoes are one of the products that must be fully grown. Any wilting and damage on the product affects the price and causes the commercial value to decrease. Some fruits breathe and produce gas after being picked in the cold room, which causes interactions in the appearance of the fruit. It is not possible to combine fruits together and store them in a mixed manner. Unless the temperature and humidity are controlled. But it is better to keep each one separately.
It is preferable to use plastic boxes for this purpose. Because it prevents the production of odor and product spoilage and pollution caused by fungi and bacteria. The amount of humidity required to store the product is slightly lower than 100 degrees. If the humidity is low, the water in the fruit will be lost and it will shrivel. Therefore, most fruits are between 85 and 95%, but it should be taken into account that 100% humidity causes the growth of mold.
Tips for using the cold room
- Not keeping two products in the same cold store except in special circumstances
- Control, supervision, continuous inspection of product quality
- Placement of boxes with regular intervals for air passage
- Separation of healthy fruit from damaged
- Vaccination operation (fruit deoiling if necessary) for storage
- Separation of cold storage for citrus fruits, apples and dates
The design and production of cold storage depends on various factors, such as the type of compressor, condenser, insulation of the cold storage, cold storage door, size of the cold storage, and the amount of electricity consumed, which definitely affects the price. For the exact price, you can communicate with the expert advisors of the Zarei refrigeration industry through the contact page. To view the products, you can refer to the image gallery. You can follow our products through the Aparat channel. We hope that the content has been useful.
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