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Keeping Your Produce Fresh: Pre-cooling and Refrigeration Techniques

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Fruit and Vegetable Pre-cooling and Refrigeration are crucial components of preservation technology that play a vital role in maintaining freshness, extending shelf life, and reducing losses. This article will delve into the importance of pre-cooling, methods of pre-cooling, and the principles and practices of refrigeration. I. Importance of Pre-cooling After harvest, fruits and vegetables continue to respire, generating heat, and carry significant field heat due to environmental temperatures. If this heat is not promptly removed, internal temperatures rise, accelerating the ripening process and leading to quality degradation or spoilage. Pre-cooling aims to reduce the temperature of the produce to an appropriate low level as quickly as possible, slowing down physiological activities and extending shelf life. II. Methods of Pre-cooling 1. Forced Air Cooling in Cold Storage Principle : Fans blow cold air over the produce, facilitating heat exchange and cooling. Featur...
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6 Effective Ways to Improve Cold Storage Efficiency

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  6 Effective Ways to Improve Cold Storage Efficiency As we all know, the electricity consumption of cold storage and cold storage warehouses is generally relatively large, and with the steady rise in electricity costs, it is very important to improve the refrigeration efficiency of cold storage rooms. CRYO is an experienced cold storage construction expert and we thought we’d share some of the most useful and effective ways to maximize the efficiency of your cold room so you don’t waste unnecessary money on your electricity bill. Regular maintenance Maintenance plays a key role in maintaining the energy efficiency of your cold room. Taking the time to do regular inspections and checks of your cold storage can help find and fix problems before the refrigeration system fails. Also, cold storage maintenance should be done by skilled and professional workers. Regularly clean the condenser unit and evaporator coil Both the evaporator coil and the condenser unit are very important to th...
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¿Por qué el descongelamiento a gas caliente es una forma efectiva de descongelar evaporadores?

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  Cuando entendamos cómo funciona la descongelamiento a gas caliente, entenderemos que la descongelación por gas caliente es el método más eficiente energéticamente. ¿Cómo funciona el Descongelamiento a gas caliente? El evaporador se convierte en condensador. El gas caliente a alta presión del lado de descarga del compresor se transfiere cuidadosamente al evaporador durante la descongelación del gas caliente, donde se condensa de nuevo a su estado líquido.   Aprovechar el calor latente del refrigerante.   El proceso de condensación libera mucha energía. Esto es igual al flujo másico de gas caliente que ingresa al evaporador multiplicado por el calor latente de vaporización del refrigerante. El calor liberado durante la condensación se llama «calor latente» porque durante la condensación no hay cambio de temperatura. Si la presión de condensación se mantiene constante, el proceso de condensación se llevará a cabo a una temperatura constante. El calor liberado durante la co...
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What kinds of cold room maintenance should be considered?

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  What kinds of cold room maintenance should be considered? Summer is coming, which means that the cold room will be used more regularly to keep food fresh and frozen, so what should be paid attention to for its maintenance? 1. Electric power for the cold room. Because electric power is used to keep the cold room running, it is important to check the electricity on a regular basis to see if the voltage is stable enough. To make sure the electricity is adequately protected? 2. The evaporator's defrost systems. If the cold room is too humid, the defrost period is set too long, or the room temperature is not properly adjusted, etc. Frost will form on the evaporator. As a result, you must ensure that the correct settings for the defrost period are specified. And, manual defrost should be used if necessary. 3. Clean the condenser. The condenser is usually placed outside, where it might collect dust. Clean the dust as soon as possible so that the whole system can function effectively. ...
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The advantages of using a cold storage for agriculture

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Refer:  The advantages of using a cold storage for agriculture . The 5 advantages of agricultural cold storage: Below are several advantages of agricultural refrigeration: Extend the life of fruits and vegetables and reduce the spoilage rate of perishable products Fresh food is perishable and is susceptible to pests and spoilage. In general, controlling temperature and relative humidity and preventing damage can greatly extend shelf life. Cold temperatures help reduce the rate of chemical change in perishable products, which can help delay the ripening of fruits and their aging. thereby extending the shelf life of fresh vegetables and fruits. Cost-effective This wastes a lot of money when perishable goods go bad due to improper storage. Cold storage extends the life of fresh produce by avoiding spoiled products, which will provide cost-effectiveness to businesses. Another way, cold storage can provide cost benefits is through energy bills. An efficient and high-quality cold storage...
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Causes of cold storage ice freezing problems and how to prevent them

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Causes of cold storage ice freezing problems and how to prevent them Cold storage is very useful in companies that need to store food products. In addition to storing food, cold rooms help maintain the quality of products thanks to their cooling capacity. With cold storage, cold storage owners can benefit from scalable storage capacity, improved accessibility, and effective temperature control. However, a concern that may be noted with cold storage is the problem of ice forming. Freezing can seriously affect the cooling and storage functions of a cold storage facility, so that’s why it’s important to understand what causes them and how to prevent them. Causes of ice freezing problems There are many possible causes of freezing problems in cold storage. One of the known causes is the inflow of warm, moist air into the cold room. Usually, cold storage components have effective seals that keep warm air out. However, if these components begin to lack the ability to seal, then it is possible...
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How to use the cold room to reduce vegetable loss?

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How to use the cold room to reduce vegetable loss? - CRYO SYSTEMS refrigeration Vegetable loss happens during fruit gathering, storing, transportation and sale every time. But how to avoid loss? 1. The first way is Pre-test precooling Now we need to know the main reasons for the loss of vegetables: Microbial infection:  In infected vegetables, micro-organisms are mainly fungi and bacteria, these micro-organisms are from some vegetables and farmland, such as potato late blight, carrot sclerotia, radish black rot, sick vegetables can Continue to spread hazards; some micro-organisms in the storage and transportation or even sales began to endanger the vegetable products, these microorganisms are mostly mold and corrupt bacteria, causing vegetables to grow mold, rot, smelly, causing losses. Vegetable physiological and biochemical reactions:  Vegetable harvest after a period of time, there are still breathing and other life activities, which respiration and a variety of physiologic...
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