The screening of food oil is actually a quality inspection project stipulated by the state and has very strict regulations. The purpose is to detect impurities and imperfect grains of food oil. In order to save time and improve the accuracy of detection, electric filters are now mostly used. To carry out inspections to help the acquisition of food and other work smoothly.
As the saying goes, a good method will make things succeed in half, and food quality testing will be the same. Choosing a reasonable detection method can make testing work more effective. As far as the screening of food oil is concerned, in addition to the commonly used electric filter method, the most commonly used method is the hand-screening method. Which of the electric filter method and hand-screening method works better?
Speak first hand sieve method, the method is the sieve layer is good, pour the sample, after the cover is covered, the sieve will be placed on a glass plate or a smooth desktop, with both hands at a rate of 110 to 120 times per minute , Measured in a clockwise and counterclockwise direction for 1 minute. The advantage of using hand-screening method is that it does not require the use of instruments or other tools, which saves the cost of purchasing instrumental products, but the disadvantages are also obvious, that is, the operation is cumbersome and error-prone.
Let's talk about the electric filter method. This method is actually also known as the machine selection method, and the electric filter is a typical representative of the machine selection method. The working method is: first, according to the quality standards set in the sieve layer ( The large hole sieve is on the top, the small hole sieve is on the bottom, and the bottom of the sieve is set on the sieve bottom). Weigh the sample into the sieve according to the regulations, cover the sieve cover, put it on the electric filter, turn on the power, open the switch, select the sieve automatically Ground to the left and right sieve for 1min (110 to 120 revolutions per minute), after the sieve is still for a while, the sieved material and the sieved material are poured into the analysis tray, so as to achieve the screening and classification of the sample. This method is simple and effective.
In today's mechanized operation, manual operation obviously does not have advantages. It is not only inefficient but also prone to errors. Machine operations represented by electric filters will dominate the work in the future. Therefore, electric filter methods and hand screens The law is good, and users should already have judgments.

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