It is not clearly defined which is better, Q or GB. The difference between Q and GB in edible oil is that Q refers to enterprise standard and GB refers to national standard. In addition, GB/Q refers to the national mandatory standard, GB/T refers to the national recommended standard, T refers to the recommended meaning, GB/Z refers to the national guiding standard, and Z refers to the guiding meaning.

Generally speaking, the thresholds of GB and GB/Q are relatively low, because they are mandatory and must meet the standards. There are many enterprises that require exceeding the national standard. When buying edible oil, we'd better choose one that meets the national standards. If not, at least meet the GB/Q standard. Because this standard is mandatory, it is the lowest safety standard.

When buying edible oil, it depends on the packaging: carefully check the trademark of the oil bottle (or oil drum), especially pay attention to the factory date and shelf life, and never buy edible oil with "three noes" (no manufacturer name, no address and no quality standard code). Look at transparency: high-quality edible oil has good transparency and is not turbid; Otherwise the quality is poor. Look at the sediment: high-quality edible oil has no sediment and suspended matter. Otherwise the quality is poor.

Purchasing method of edible oil:

First, look at the color. Generally speaking, the higher the degree of refining, the lighter the color of oil. Of course, all kinds of vegetable oils will have a unique color, and it is impossible and unnecessary to refine them to no color.

Second, it depends on transparency. We should choose clear and transparent oil. The more transparent, the better.

Third, you should smell tasteless. Take a drop or two of oil and put it in your palm. After the hands are rubbed and heated, no peculiar smell (pungent or irritating) can be smelled. Don't buy it if it smells.