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How to do cold room operation and maintenance?

For any cold room to function efficiently, it is important that the refrigerated cold room is maintained properly. The efficiency of the room can be made possible if the room is maintained properly.

1, The refrigeration system and the cold room:

For the room to be efficient it is important that the refrigeration system is efficient. The refrigeration system needs to be perfect to make sure that the inner temperature can be maintained.

The maintenance of the refrigerated room should also include the maintenance of compressor. The compressor is important part of the cooling system of the room. The compressor needs to be cleaned repeatedly to make sure that the refrigeration of the room is able to maintain the desired temperature.

The coils of the fan, condenser and the evaporators also need to be cleaned repeatedly so that the refrigeration system can function properly. These parts of the cold rooms should be done on daily, monthly, quarterly and annual maintenance checks.

2, The daily maintenance checks:

The daily maintenance checks of the cold rooms include the following practices:

  • Spillages should be cleaned up IMMEDIATELY
  • Check the cold room temperature is correct for your products
  • Inspect the evaporator for a build-up of ice
  • Check the compressors in the walk-in cold room for oil leakage
  • Check the Freon levels in the cold storage room

3, The monthly checks:

The daily maintenance should be done throughout the month.

The efficiency of the system should be checked by carrying out the following practices:

Make sure that the fins of condenser coils are clean.

The evaporator and the fins of the cooler should be clean as well.

Make sure that the room is cooling perfectly when fully loaded.

Ensure that the levels of refrigerants are maintained properly.

The reverse blowing should be working properly as well.

The control valves should function efficiently.

The function of defrosting should work properly because defrosting is imperative to the efficiency of the room.

The evaporators should be clean and functioning efficiently to make sure that the temperature is maintained.

The casing of the evaporator should be cleaned along with the blower fans.

The temperature of the colds room should be calibrated.

To make sure there is no malfunctioning, perform a system functional test.

Quarterly maintenance practices:

Perform all the monthly maintenance practices. They should not be ignored. If ignored they can lead to increase in the energy consumption and inefficient cooling.

The overall functionality of the cold room should be tested to make sure there are no leakages or damage to the cold room.

Annual maintenance practices:

The daily, monthly and the quarterly maintenance checks should be carried out without any exception.

By carrying out all the maintenance steps mentioned above, the efficient functionality of the room can be ensured.

The heat exchanger should be washed chemically. This will help in removing any impurities which may become a hindrance in the efficient functionality of the room.

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Cold Room Storage Temperature and Time of Fruits and Vegetables

The cold room storage temprature and time of fruits and vegetables is different according to different varieties of fruits and vegetables. It is related to many reasons such as: pre-cooling, quality of fruits and vegetables, varieties of fruits and vegetables, Packaging methods of fruits and vegetables, etc.

Without cold room, most fruits and vegetables will not stay fresh for more than a few days. As soon as fresh produce is harvested, it begins to deteriorate and dangerous bacteria will start to develop.

Proper storage conditions – temperature and humidity – are required to maximize storage life and maintain quality of harvested fruits and vegetables.

Fresh fruit need low temperature and high relative humidity to reduce the respiration and slow down the metabolic processes. The table below indicates optimal temperatures and moisture conditions for some common fruits and vegetables.

Storage temperature for various fruits and vegetables

1 Around 0°C: Most of the roots and leafy vegetables are cool fruits and vegetables (originally produced in temperate and frigid zones), and their suitable storage temperature is 0-2°C, not lower than 0°C. Cabbage, spinach, cauliflower, celery, carrots, peaches, grapes and apples are just picked, don’t put them in the cold storage immediately, because low temperature will inhibit the enzyme activity of them. Therefore, it is best to store these fruits and vegetables at room temperature for one day before putting them in the cold room.

2, 10°C: Like tomatoes, cucumbers, bell peppers, lychees, bitter gourds, cowpeas, pumpkins and other vegetables are suitable stored in temperature about 10°C;

3, Above 10°C: Tropical fruits are best stored in a dark and cool place. If it must be placed in a cold storage, it should be placed in a higher temperature cold room, and the storage time should not exceed two days. The suitable storage temperature for bananas, lemons, pumpkins is 13-15°C.

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Guide to fish and seafood cold storage room

Seafood cold room is applied to store fish and seafood etc. The low temperature or ultra low temperature greatly decrease the activity of all kinds of  bacteria and micro organism and limit their growing and keep the freshness of fish and seafood.

Our comprehensive guide will help you to store fish correctly, so you can make the most of your produce.

Any fresh fish or sea food needs very strict storage requirement as there is a high risk of rapid bacterial growth which can waste the storage. Also it needs to keep separate from all other type of food stored.

How to properly store fish?

1, Fresh seafood cold storage room;

They are mainly used for the temporary turnover and trading of fresh seafood. The general storage period is 1-2 days, and the temperature range is -5 ~ -12 ℃. If the product is not sold within a 1-2 day period, the seafood should be moved in the blast freezer room for quick freezing.

2, Frozen seafood cold storage room;

They are mainly used for long-term  preservation of frozen seafood. The general storage period is 1-180 days, and the temperature range is -20 ~ -25 ℃. Quick-frozen seafood from the blast freezer room  is transferred to this low temperature cold room.

3, Fish and seafood blast freezer cold room;

The quick freezing time is generally between 5 hours and 8 hours, and the storage temperature is between -30 ~ -35℃;

There is also -60~–45℃ freezer room for storing tuna etc..

The difference between seafood cold storage room and common cold storage room is that seafood generally contains more salt, and salt has a corrosive effect on materials. If the cold storage does not do some anti-corrosion  treatment, it will rot and perforate after long-term corrosion. We advice that using stainless steel panels for building fish and seafood cold room. Evaporators use blue hydrophilic aluminum foil fins.

The best way to store fresh fish

As fresh fish has an incredibly short shelf life, normally around 1-4 days, proper storage is vital to retain quality and taste. Legally, fresh fish containing no frozen water must be stored at or close to 0°C. Anything above 4°C will result in rapid deterioration, causing fish to quickly become unfit for consumption.

Using a temperature controlled refrigeration unit will help to successfully chill and maintain your fish at the required level. Once in storage, this temperature should be regularly checked and any produce above 4°C should be thrown away. Any fish taken out of a controlled temperature unit should be used immediately and on no account should warm fish be returned to cold storage.

Cold stores regulate temperature by releasing a continuous flow of cold air around the unit and if this flow is obstructed, the temperature will suffer. Therefore, to get the most out of your refrigerated cold stores and the most out of your fish, avoid packing above capacity. Much like packing and storing frozen fish, you should never pack fresh fish together too tightly, as this will affect the temperature and ultimately the quality of your produce.

To ensure fish stays as fresh as possible, it’s always recommended to keep it in a professional cold store unit. Regular domestic fridges simply cannot offer the same level of temperature control and can leave you with unsafe fish and heavy wastage.

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Cold storage rooms were shipped to Mauritius

We exported the whole cold storage rooms to Mauritius.

Cam lock cold room sandwich pu panels with o.5mm color steel.

Copeland air cooled condensing unit and evaporator

Loading container in our factory.

As a professional cold room manufacture for more than 18 years,

We manufacture Cold room, prefabricated cold room, Cold storage, industry cold storage, commercial cold storage;Freezer room, blast freezer room, walk in freezer room; Chiller room, small chiller room, chiller room;

We provide one stop cold room refrigeration solution including cold room panels, cold room doors, condensing unit, evaporators and condensers, and ice making machines. It offers complete range of Refrigeration Systems with all types of Compressors i.e. Bitzer, Danfoss, Bock, Frascold and Copeland. As the leader in refrigeration technology, we aim to bring you high quality, reliable, long lasting and excellent efficiency products.

Our products has been exported to Ghana, Nigeria, Mauritius, Mozambique, Garbon, Egypt, Lebanon, Saudi Arabia, France, Spain, America, Russia, Philippines, columbia etc.

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Meat cold room was exported to Ghana

Cam lock cold room pu sandwich panels with o.5mm color steel for meat cold room.

Bitzer air cooled condensing units and evaporators for cold room for meat.

Loading container in our factory.

As a professional cold room manufacture for more than 18 years,

We manufacture Cold room, prefabricated cold room, Cold storage, industry cold storage, commercial cold storage;Freezer room, blast freezer room, walk in freezer room; Chiller room, small chiller room, and walk in chiller room;

We provide one stop cold room refrigeration solution including cold room panels, cold room doors, cold room condensing unit, cold room air cooler evaporators and condensers, and ice making machines. It offers complete range of Refrigeration Systems with all types of Compressors i.e. Bitzer, Danfoss, Bock, Frascold and Copeland. As the leader in refrigeration technology, we aim to bring you high quality, reliable, long lasting and excellent efficiency products.

Our cold room has been exported to Ghana, Nigeria, Mauritius, Mozambique, Garbon, Egypt, Lebanon, Saudi Arabia, France, Spain, America, Russia, Philippines, columbia etc.

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Potato cold storage room-how to store potatoes long term?

Potatoes are important vegetable crops in our life. The harvested fresh potatoes can also be kept fresh in the cold storage room, it can be stored as long as 8 months in the cold room.

Potato cold storage preservation technology mainly includes three points: potato harvesting, cold storage room period and delivery management.

I  Potato harvesting

1,The potato harvest time is selected on a sunny day. Watering should be stopped 7-10 days before harvest, which can promote the aging of potato skins and reduce the moisture content in the tubers.

At this time, the land is dry, and the potato pieces that are excavated are less muddy, and part of the water is distributed, making the skins dry and conducive to storage.

2, After the potatoes are harvested, the next step is to grade the potatoes to eliminate the potatoes with diseases and insect pests.

We will choose good quality potatoes that are moderate in size (usually medium), harmless, and disease-free for storage.

II Potatoes pre-cooling

After the potatoes are graded, they are pre-cooled. There are three pre-cooling methods: natural pre-cooling, cold storage pre-cooling, vacuum pre-cooling.

The pre-cooling time of the cold storage room is not more than 48 hours, and the pre-cooling is stopped when the temperature reaches five degrees higher than the storage room temperature. The pre-cooling time is scheduled within 12 hours after harvest.

III  Potato cold storage room

Temperature cooling down in advance is to help the potatoes better adapt to the low temperature environment of the cold storage. Generally, they are turned on and cooled 3 to 5 days before the potatos put in, and the temperature is controlled at about 1 to 4°C.

(1) Cold storage room temperature

AC potato cold storage room temperature is 3℃~5℃.

The room temperature is required to reach the specified storage temperature within 48 hours. The storage room temperature is required to be stable during the entire storage period, and the fluctuation does not exceed ±1℃.

(2) Relative humidity

The relative humidity of the potato cold storage room is kept at 80%~90%.

If the humidity is higher than this, the potatos are easy to rot and germinate early; if the degree is too low, the potatoss are easy to lose water, lose weight, become soft and shrink, and lose their edible and seed value.

(3) Gas management of potato controlled atmosphere storage room

It is recommended to be controlled as: oxygen concentration 3%~5%, carbon dioxide concentration 2%~3%.

The respiration of potatoes is still going on after harvesting. Potatoes with too low oxygen content will be hypoxic. In some cases, they will lose their germination ability, and in severe cases, they will cause suffocating rot.

The appropriate concentration of carbon dioxide concentration can also slow down the respiration of fresh potatoes, and can effectively delay the initiation of the respiratory jump.

But the carbon dioxide concentration can not be too high, too high carbon dioxide will cause potatoes to be forced to undergo “anaerobic respiration”.

refers to the process in which the respiratory substrate of potatoes cannot be completely oxidized under hypoxic conditions to produce alcohol, aldehyde, lactic acid and other products, and at the same time release a small amount of energy. The reaction equation is as follows:

Anaerobic respiration is not good for potato storage, it will consume more nutrients stored in potatoes and accelerate the aging of fruits and vegetables.

In addition to controlling the carbon dioxide and oxygen components, the cold room also controls the concentration of ethylene. Ethylene can quickly increase the respiratory intensity of potatoes and accelerate the ripening of potatoes. The ethylene removal machine of the air conditioning warehouse can control and reduce the concentration of ethylene.

IV Potatos taken out from cold storage room

1, The taken out potatoes should be warmed up slowly to prevent the dew and deterioration of the potatoes caused by the excessive temperature difference;

2, Pay attention to the handling process: handle, put, and move gently to avoid mechanical damage;

3,Cold chain transportation should be implemented for medium and long-distance transportation, and room temperature transportation can be selected for medium- and short-distance transportation.

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how to reduce electricity costs in cold storage room?

For cold storage room the second highest operating cost is electricity. Maintaining stable temperatures, especially in frozen food industry, requires continuous refrigeration and massive amounts of electricity. Finding ways to balance electricity costs and temperature stability is an important thing for operators.
Although, in general terms, cold rooms all work in the same way; it does not necessarily mean they are made to the same standards or that they will automatically work in an energy efficient manner. Therefore, we will discuss some great tips you can use to ensure your electricity bills stay as low as they possibly can.

1, The Opening And Shutting Of The Cold Room Doors

Try and reduce the amount of time the cold room doors are open for when you go in and out of your cold room. Quickly close the door each and every time you leave.
Therefore, it is best to keep these cold room areas at the most stable temperature possible to avoid higher consumption of energy and the increased costs associated.

2, Loading or unloading the goods in batch

When loading your cold room, try to do it in batches and ensure the environment directly outside the cold room is as cool as it possibly can be. Therefore, by adopting efficient and effective loading and unloading practices, you should be able to stop the running costs from getting too high.

3, Monitor The Cold Room Temperature And Ensure It Is Kept At An Optimum Level

It is crucial that you keep a close eye on your cold room’s temperature. Speak to the manufacturer, installer or consult the user’s manual if you are unsure of the ideal temperatures for the products you want to store. By leaving a cold room set to the incorrect temperature, you may increase your electricity bill.

4, Carry Out Cold Room Maintenance Regularly

You can reduce problems and make sure your cold storage room is working in the way it should be. It will also help to reduce costs and save money by bringing issues that can be prevented to your attention. Which can in turn lower the cost overall of running a cold room. Regularly carry out inspections of your cold room to ensure there are no defective hinges on the doors or problems with the seals that could be allowing the warmer air outside of the cold room inside.

And most important of all, when you come across an issue, get it repaired or dealt with as soon as possible.
Our top tips for reducing cold room energy costs include:

• Preventing cold air from the leaving the cold store
• Loading and unloading products in bulk
• Keeping a cold store at the right temperature
• Installing effective insulation
• Having the cold room maintained on a regular basis
• Checking for faults on seals, hinges or catches

Contact us for more information on cold room design, manufacture, installation, maintaining them and trying to keep the running costs down.

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Vaccine cold rooms were exported to Mauritius

Cam lock cold room sandwich panels with o.5mm color steel.

Copeland air cooled condensing unit and evaporator

Loading container in our factory.

As a professional cold room manufacture for more than 18 years,

We manufacture Cold room, prefabricated cold room, Cold storage, industry cold storage, commercial cold storage;Freezer room, blast freezer room, walk in freezer room; Chiller room, small chiller room, chiller room;

We provide one stop cold room refrigeration solution including cold room panels, cold room doors, condensing unit, evaporators and condensers, and ice making machines. It offers complete range of Refrigeration Systems with all types of Compressors i.e. Bitzer, Danfoss, Bock, Frascold and Copeland. As the leader in refrigeration technology, we aim to bring you high quality, reliable, long lasting and excellent efficiency products.

Our products has been exported to Ghana, Nigeria, Mauritius, Mozambique, Garbon, Egypt, Lebanon, Saudi Arabia, France, Spain, America, Russia, Philippines, columbia etc.

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Get to know more mobile containerized blast freezer room

What is a mobile containerized Blast Freezer room?

It is a blast freezer refrigeration system in a reefer container.

We advice the mobile container type blast freezer room because it is portable, you can put where you want, or you can rent it, to be portable gives you many advantages. You can use your garden from where you can win or loading in factory where cover is provided.

The blast freezer containers are reliable, mobile, quick freeze solutions for high-value seafood and meats, many business owners and especially fishing companies prefer portable container type cold storages. Plenty of time and places where fishing (in ports) is very convenient to use.

1. Flexible locations for the Blast Freezer

  • Usually, blast freezer is installed in the processing plant, so the location is permanent. It’s not so possible to move it to another location.
  • Based on a new blast freezer container, you could move our containerized blast freezer to a new place, just with crane and truck.

2. No need installation or commissioning

  • Blast freezer is more complicated than a normal freezer room or chiller room. For example, the screw compressor requests more knowledge to control.
  • But with a containerized blast freezer, what you need to do is connect it to main power. Very easy.

3. Space-saving

  • Based on the blast freezer container, this containerized blast freezer could be outdoor, and closed to your processing plant.

Why blast freeze?

Blast freezer (blast chiller, walk-in freezer, freezer store or blast freezer cold room) is a cold storage unit that can freeze large quantities of goods very quickly.

Blast Freezing Temperature (-35°C / -40°C)

Blast freezing is the process of cooling until obtaining core heat of product with a temperature of -18°C.  This quick-freezing process is conducted in the -35°C / -40°C rooms. When the core heat of the product reached to -18°C, products are transferred to frozen storage rooms. -35°C / -40°C Blast Freezing is not used for storage purposes; it is only for Blast-Freezing. Important point for these rooms is that choosing proper cooling device. In order to choosing proper cooling device; product type, amount, entrance temperature, room dimensions and targeted Blast-Freezing time has to be taken into consideration. It is significant to keep Blast-Freezing time short to maintain long self-life of the products. We built plenty of blast freezing rooms taking into consideration minor details of your projects and installed the blast-freezing facilities for quite different industries such as fish, ice cream, red meat, poultry and vegetables.

Atlascool containerized blast freezer models:

20ft and 40ft size container blast freezer room

Appilications:

Sometimes clients have unique needs that can be met by our custom designs. We offer Blast freezers, Multi-temperature units, Medium and Low Temperature Units, and can build custom sized containers to meet your space requirements.

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2021 Merry Christmas&Happy New Year

To all of our customers, suppliers, partners and staff around the world, we wish you a very happy Christmas&New year. We look forward to working with you again in 2021!

Why choose us?

Your Cold Room Expert

More than 18 years refrigeration experience

From design to installation&maintenance service , we provide one stop cold room solutions for your fresh life.

We offer a wide variety of services for your refrigeration needs. Whether you need to have us consult on your plans, design your refrigeration system, supply the materials and equipment, install the equipment, or perform maintenance and repair services, we have the skills, expertise, technology, and tools to make it happen.