Cold storage, also known as controlled atmosphere storage is the most advanced method of storage of fresh fruits and vegetables. It is based on refrigerated, increasing gas component adjusted by the storage environment, temperature, humidity, carbon dioxide, oxygen concentration and ethylene concentration and other conditions of control, inhibition of respiration of fruits and vegetables, slow down the metabolic processes, better to keep fruits and vegetables fresh degree and commodity, and to extend the shelf life of fruit and vegetable storage (sales shelf life). Typically atmosphere storage than conventional refrigerated storage period may be extended 0.5-1 times; fruits and vegetables controlled atmosphere storage library after library start with “sleep” state “wake up”, which made of fresh fruits and vegetables after the library (Sales shelf life)  may be extended 21 to 28 days, 3 to 4 times the normal refri […]

The field of refrigerant regulation is constantly changing, with additional regulations being announced on a nearly annual basis. Whether as a way to fight against ozone depleting substances or in an attempt to slow climate change, global refrigeration treaties like the Montreal and Kyoto Protocols have been phasing out refrigerants since the 1980s. One refrigerant that is not at risk to be phased out is carbon dioxide or CO2. CO2 is has the lowest possible GWP rating of 1 and poses no risk to the ozone layer, making it immune to future regulations. And while CO2 is a very efficient refrigerant, it has limitations, particularly with regard to high ambient temperatures. However, emerging technology may have finally overcome this shortcoming. This article is intended to serve as a review the different technologies related to CO2. To better establish the differences between each kind of system, we will review each one, starting with booste […]

A blast freezer is a device quickly lowering the temperature of the introduced foodstuff, either fresh or pre-cooked, maintaining its peculiarities during storage. Blast Freezers work by rapidly freezing contents at a level in which stops bacteria from deteriorating the product, allowing it to be persevered for a longer period of time. The blast freezer operates in full compliance with the HACCP standards, which originated from the need for maintaining the food’s healthiness. The HACCP system is designed to assess all possible risks that may affect the food’s healthiness at each stage of its production: it implements preventive measures, instead of focusing just on the inspection activities carried out on the finished product. In other words, this control is designed to monitor the whole food production and distribution process. There are many different kinds of chilling, depending on the characteristics of the food and on h […]

Modern industrial production, storage, and distribution would be impossible without the extensive use of refrigeration. Ammonia (NH3) has long been the prevalent refrigerant in industrial refrigeration due to its high degree of efficiency, low environmental impact, and affordability. Ammonia is commonly used in food processing facilities, dairies, breweries, meat processing plants and cold storage warehouses, where a large cooling demand is required. Ammonia is a cost-effective and efficient refrigerant. The only drawback is its classification as a poisonous refrigerant that in case of leakage can be harmful to personnel and the food items that the refrigeration system was designed to protect. The risk of leaks arises from many different sources, ranging from inadequate operating procedures or lack of training to failures in piping, welds or poor maintenance. Due to its classification as a poisonous gas, design, construction and operati […]

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We, at Focusun, would like to extend our gratitude to our friends all over the world, We wish you and your beloved ones a blessed vacation and a happy Xmas and a happy new year.  

When making or handling ice, the below precautions should be taken. Do not store anything but ice in the ice machine storage bin so that there is no potential for contamination. Not even the scoop. Always be sure to wash your hands before handling ice or utensils that touch the ice. Only use the handle of the scoop when retrieving ice. Never handle ice with bare hands. The scoop should be kept outside of the bin in a sanitary location between uses. Employees should never use the cup or glass for customer use as a scoop. Never put ice that is unused back into the ice holding bin. Instead, discard it and start with fresh ice. All ice handling equipment such as scoops should be washed daily in the kitchen dishwasher and sanitized properly according to health department standards. If you need to store some ice outside of the bin, make use of dedicated containers that are labelled “Ice only” so that they are only used for that purpose. These […]

An ice cube machine does not freeze ice like an ice tray. Take a look at an ice cube from an ice tray and you will see a cloudy area in the centre. Then take a look at an ice cube made from a machine. You will see that it is clear all the way through. This is what allows it to make clean ice with dirty water. Here’s how. First, only pure water freezes at 32 degrees Fahrenheit. Impure water freezes at lower temperatures. The water around the outside of the cube is exposed to the coldest first and starts to freeze. The pure water freezes around the outside and pushes the minerals towards the middle. The mineral-laden water in the middle freezes last, making the cloudy ball in the middle of an ice tray made the ice cube. But the ice cube machine makes ice without the cloudy middle. How Ice Cubes Machines Avoid Freezing Impure Water An ice cube tray holds the water in place. The pure water freezes first and then the impure water freez […]

Condenser, a device for reducing a gas or vapour to a liquid. Condensers are employed in power plants to condense exhaust steam from turbines and in refrigeration plants to condense refrigerant vapours, such as ammonia and fluorinated hydrocarbons. The petroleum and chemical industries employ condensers for the condensation of hydrocarbons and other chemical vapours. In distilling operations, the device in which the vapour is transformed to a liquid state is called a condenser. All condensers operate by removing heat from the gas or vapour; once sufficient heat is eliminated, liquefaction occurs. For some applications, all that is necessary is to pass the gas through a long tube (usually arranged in a coil or other compact shape) to permit heat to escape into the surrounding air. A heat-conductive metal, such as copper, is commonly used to transport the vapour. A condenser’s efficiency is often enhanced by attaching fins (i.e., flat she […]

Today, there are around 2 billion household refrigerators and over 40 million square meters of cold-storage facilities operating worldwide. In the U.S. alone, over 8 million refrigerators are sold each year. Beyond our homes, restaurants, and supermarkets, refrigeration has global applications with a positive impact upon the economy, technology, social dynamics, health, and the environment. Global Economic Applications The refrigeration industry employs more than 2 million people worldwide, especially in the service sectors. Refrigeration is necessary for the implementation of many current or future energy sources (hydrogen liquefying for alternative fuels in the automotive industry and thermonuclear fusion production for the alternative energy industries). The petrochemical and pharmaceutical industries also need refrigeration, as it is used to control and moderate many types of reactions. Heat pumps, operating based on refrigeration p […]