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Work Closely To Ensure Quality Standards

Zhengzhou Miracle Machinery Co.,Ltd | Updated: Mar 17, 2017

Fruits and vegetables storage equipment designed air handling operations - the appearance of potato chips, taste and attractiveness. Dark brown spots are one of the most flawed on the potato chips, and it is the increase in the concentration of carbon dioxide (CO2) during storage.

Environmental irritation will reduce the quality of frying

In North America, potato chips made from potato chips appeared in July, August and September, and potato chips were made with fresh or stored potatoes throughout the year. During storage, potatoes continue to breathe, consume oxygen and internal sugar (through internal starch conversion) and produce CO2, water and heat. Environmental irritation will increase the respiration rate of potatoes and increase the concentration of sugar in potatoes. These sugar will lead to frying quality defects, especially the emergence of dark brown spots. Temperature, humidity and CO2 conditions are three key environmental factors that need to be monitored during storage to maintain quality and reduce environmental irritation. If these environmental factors exceed the required range, the potatoes will be affected by the pressure.


High concentration of CO2 is a stimulating factor for stored potatoes. "When the CO2 concentration level reaches 2500 ppm, take measures to remove fresh air to dilute CO2," Forbush said. The CO2 concentration may increase when the equipment ventilation is reduced to the control temperature due to the natural respiration rate relative to the potato life cycle. "Potato ripening can characterize the level of respiration. Immature potatoes have high levels of respiration, ripe potatoes are low and ripe potatoes are once again at high levels of breath because it will enter the activation mode before the end of life," Forbush added. Aging factors are one of a number of conditions considered for its air handling system design.


Growers have a huge incentive to provide flawless potatoes whose benefits come from the weight of potatoes and whether they can meet the frying quality requirements of potato chips. Work closely with growers to ensure quality standards and profit from process machines. If the potatoes of the growers do not meet the quality standards of the machine (usually less than 15% of the defect rate), the growers may need to seek other low return markets for potatoes.


Custom air handling system to regulate and distribute the airflow in the potato storage facility. In the 15 to 20 feet of potatoes, adequate air distribution is just as important as the airflow parameters. Selected for its air handling system Vaisala pipeline installation CAR BOCAP® carbon dioxide transmitter GMD20. Vaisala GM D20 offers excellent long-term stability and a high degree of tolerance. It can withstand high humidity conditions, which is a potato storage process in a condition, this time will be as high as possible to maintain humidity, no excess water to maintain product weight.

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 Has recently worked with a large fast food processor in North America to improve the processing quality of tracked potato chips. The ventilation of the rail car is poor and, after a few days, the CO2 will increase to a level that seriously affects the quality of the fry. According to the statement, the installation of Vaisala GMD20 transmitter will enhance the ventilation control capacity, improve the quality of orbital fried potatoes. More potato growers are driven by potato chips and fried potatoes that are particularly sensitive to flaws, and new technologies are used to monitor environmental factors that could seriously affect quality and profitability.