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Cold Storage for Agricultural Products

HaNT — Sat, 09 Apr 2016 07:34:55 +0000

Cold storage for Agricultural Products are play a very important role in reduce post-harvest losses. Foc Viet Company is one of the most professional companies, specializing in cold storage installation. Foc Viet supply, install cold storage for Agricultural Products, fishery cold storage, cold storage for hotels and restaurants, food cold storage and cold storage for milk…

Cold storage can be used to preserved foods and many other commodities at low temperature to retard the activities of microorganisms. Microorganisms are the spoilage agents and consist of bacteria, yeasts and molds. Low temperature does not destroy those spoilage agents as does high temperature, but greatly reduces their activities, providing a practical way of preserving perishable foods in their natural state which otherwise is not possible through heating. The low temperature necessary for preservation depends on the storage time required often referred to the type of product and as long or short term shortage.

Foods that are alive at the time of storage, distribution and sale e.g. fruits and vegetables… These food have some natural protection against the activities of microorganism. The best method of preserving these items is to keep the product alive and at the same time retard the natural enzyme activity which will retard the rate of ripening or maturity.

Foods that are no longer alive and have been processed in some form e.g. meat and fish products… Preservation of non-living foods is more difficult since they are susceptible to spoilage. The problem is to preserve dead tissues from decay and putrefaction. Long term storage of meat and fish product can only be achieved by freezing and then by storing it at temperature below -15oC. Only certain fruits and vegetables can benefit from freezing. However, for fruits and vegetables one should be very careful about the recommended storage temperature and humidity a deviation from which will have adverse effect on the stored product leading to even loss of the entire commodity. Products such as apples, tomatoes, oranges, etc. cannot be frozen and close control of temperature is necessary for long term storage. Some product can also be benefited by storing under controlled atmosphere and modified atmosphere conditions.

Dairy products are produced from animal fats and therefore nonliving foodstuffs. They suffer from the oxidation and breakdown of their fats, causing rancidity. Packaging to exclude air and hence Oxygen can extend storage life of such foodstuffs.

To design a cold storage, we need to consider some heat load factors as below:
Ceiling, floor and wall heat gains due to construction
Ceiling and wall heat gains from solar radiation
Load due to ingression of air by frequent door openings and during fresh air charge.
Product load from incoming goods
Heat from workers working in the room
Heat of respiration from stored product
Light load
Cooler fan load
Aging of equipment
Miscellaneous loads, if any

Desired Storage Environment of Fruits and Vegetables in the cold storage

Commodity	Temperature (Degrees Celsius)	Relative Humidity (%)
Apple	-1 – 3	90 – 98
Apricots	-0.5 – 0	90 – 95
Avocado	7 – 13	85 – 90
Asparagus	0 – 2	95 – 97
Beans, green	4 – 7	90 – 95
Beet root	0 – 2	95 – 97
Broccoli	0 – 2	90 – 95
Black berry	-0.5 – 0	95 – 97
Cabbage	0 – 2	90 – 95
Carrots	0 – 2	90 – 95
Cauliflower	0 – 2	90 – 95
Cherries	0.5 – 0	90 – 95
Cucumber	7 – 10	90 – 95
Brinjal	0 – 2	90 – 95
Grapes	-1 – 1	85 – 90
Lemons	4 – 15	86 – 88
Lettuce	0 – 1	95 – 98
Lime	3 – 10	85 – 90
Mango	11 – 18	85 – 90
Melon water	2 – 4	85 – 90
Orange	0 – 10	85 – 90
Peach	-1 – 1	88 – 92
Potato	1.5 – 4	90 – 94

For any further information on cold storage installation, please do not hesitate to contact us.

Hotline: 0923 199 968

FOC VIET COMPANY
Address: No 23, Commune 1, Dai Linh Street, Trung Van, Nam Tu Liem District, Ha Noi
Tell : 04 3839 0745
Hotline: 0923 199 968
Email: codienlanhfocviet@gmail.com
Website:
http://lapkholanhhanoi.com
http://lapdatkholanh.asia/com
http://vattulanh.vn/

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Fish cold storage

HaNT — Sat, 09 Apr 2016 07:46:59 +0000

Fish cold storage can keep fish un-spoilt in long time at frozen temperature. By lowing the temperature, the spoilage of fish flesh resulting from the action of enzymes and bacteria can be slowed down; when fresh raw fish is properly frozen and then kept at a sufficiently low temperature in fish cold storage, spoilage can be almost entirely stopped. During cold storage, some deterioration of the frozen fish takes place, but the changes are so small under the right conditions that to the ordinary consumer the thawed fish is indistinguishable from fresh after many months in store.

Temperature of storage is the most important single factor affecting the storage life of frozen fish. The lower the holding temperature, the longer is the period of safe keeping.

Minus 20F degrees is the recommended storage temperature for all frozen fishery products. Undesirable changes in the flesh caused by enzymes go on only very slowly and bacterial action is completely arrested at this temperature.

Design of fish cold storage

The temperature difference between the product and the cooling unit in the store must be kept as small as possible, since the bigger the temperature difference, the faster will water vapor leave the product to appear as frost on the cooler; thus freezer burn will be excessive when the temperature difference is large. In practice it is therefore desirable to use a cooler with as large a surface area as possible in still air, rather than a small cooler with fans, since movement of air can also accelerate drying. The cooling grids should be spread over as much of the internal surface of the store as possible, walls as well as roof. This also helps to prevent heat that leaks through the walls from reaching the product.

Cold store operation notice:

Cold storage plant rarely has sufficient reserve capacity to cope with the extra heat load; warm produce brought into the store will not only take a very long time to cool, but can also warm other products already in store, with consequent loss of quality. Never attempt to freeze fish in a cold storage and never put frozen fish that is warmer than the store directly into the store.

Do not stack goods close to the walls, or directly on the cold store floor; leave an air space below and around the goods so that cold air can pass between the goods and the store structure. Pallets can be used on the floor, and vertical battens can be fixed to the walls.

Produce stacked close to the doorway should be screened to protect it from warm air coming in.
Do not leave it open longer than necessary and never have more than one door open at a time.

All packages should be clearly date-stamped so that stock rotation, on the principle of first in, first out, can be strictly observed. Packages of any one product should be removed from the store in the same order in which they were put in.
All products in store should be protected either by a wrapping that is impervious to water vapor, or by adequate glazing; glazing should be renewed at intervals when required.

Foc Viet Cold Storage is specialized in cold storage installation. We have experience supervisors to design, install and maintain all kind of cold storage for fruit and vegetable, cold storage for meat, fish cold storage, cold storage for food, and cold storage for medicine – vaccine, cold storage for ice-cream…..

For any further support you may need, please do not hesitate to contact us via:

Hotline: 0923 199 968

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Milk Cold Storage

HaNT — Sat, 09 Apr 2016 07:17:11 +0000

Milk cold storage is an initial part to keep milk products fresh to provide to clients. It is very necessary for companies who produced milk products to install milk cold storage. Foc Viet Company is specialized in designing, installing cold storage, milk cold storage, fruit and vegetable cold storage, food cold storage, industry cold storage, medicine and vaccine cold storage, ice-cream cold storage, fish cold storage…

We provide with cold storage for dairy with international quality standards. We offer a comprehensive range of milk cold storages in different requirement and capacities of our clients. We use superior quality raw material to manufacture our cold storages to make them duration. Our milk cold storage is also robust in construction and highly durable.

Some main feature of mild cold storage:

Dimension: according to client’s requirement;
Panel thickness: 100mm;
Panel connection: cam-lock type;
Type of door: opened-door or sliding door;
The temperature to store milk is 2 to 4 degrees Celsius;
Voltage: 380V/50Hz// 220V/50Hz optional;

In case, you would like to have further information regarding to milk cold storage installation, please feel free to contact us.

Hotline: 0923 199 968

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