Is crude cooking oil really healthy and safe?

In recent years, people have habitually linked food such as "crude cooking oil" with "organic products" and "green food", believing that "crude cooking oil" is additive-free, pollution-free, more fragrant and healthier. Here, Henan Doing warmly reminds: the so-called "crude cooking oill" generally refers to the oil seeds such as rapeseed and peanuts that are roasted and fried in the small oil-pressing workshop, then poured into the crude cooking oil machine, and filtered through a simple gauze cloth. , oil obtained by precipitation. They have not been subjected to refining processes such as deacidification, decolorization, and deodorization. So, is crude cooking oil really healthy and safe? In fact, crude cooking oil has a large food safety risk.

Crude cooking oil

First of all, in the selection of raw materials, if the various oil-pressing raw materials that have just been harvested are not fully dried, there is a high probability that mildew will occur and aflatoxin will be produced, which will lead to excessive aflatoxin in the oil-pressing raw materials. In the pressing process, without the help of intelligent mechanical equipment, it is difficult to distinguish with the naked eye, and the selection process is time-consuming and labor-intensive, and it is even more impossible to remove the moldy oil raw materials one by one. Aflatoxin is a first-class carcinogen. If you eat cooking oil containing aflatoxin for a long time, the risk of cancer will be greatly increased.

Cooking oil processing machine

Secondly, in the production process, in order to improve the oil yield, it is necessary to roast the oil seeds at high temperature before pressing. In this process, the temperature and time of roasting are all based on the personal experience and feeling of the owner of the "crude cooking oil". If the temperature is too high or the time is too long, a large amount of polycyclic aromatic hydrocarbons such as benzopyrene is likely to be toxic. At the same time, due to the small investment and simple production process of crude cooking oil workshops, cooking oil refining equipment is usually not equipped. The oil produced by the "traditional pressing" method can only be called "crude cooking oil", there are many impurities such as water, mechanical impurities (dust), colloids (phospholipids, proteins, sugars), free fatty acids, pigments, hydrocarbons, and metal compounds, and may also contain benzos. Contaminants such as pyrene and aflatoxin, direct consumption of such "crude cooking oil" is detrimental to human health and safety.

Modern cooking oil refining process and machine

Furthermore, it is the storage and packaging aspects after production. Due to the limitations of the production environment and sanitation conditions of the "crude cooking oil" workshop, it is difficult to avoid the situation of microbial contamination. In addition, the "crude cooking oil" has a high impurity content, which is easy to be rancid and oxidized, and most of them have no production date and shelf life. It is difficult to ensure the security of its various indicators.

Refined cooking oil

All in all, crude cooking oil is not healthy and safe. Compared with "crude cooking oil", modern cooking oil extraction technology and equipment are the mainstream choices. The modern cooking oil processing machine of Henan Glory Company is equipped with intelligent machinery for one-stop operation from raw material cleaning, shelling, flaking, cooking, pressing, filtration and refining. Multiple refining processes such as degumming, deacidification, decolorization, and deodorization remove harmful impurities and ensure cooking oil safety standards and refined cooking oil quality control.