According to the technical staff of Heinz (Qingdao) Food Co., Ltd., one of the tomato sauce manufacturers, …… tomato sauce is produced by their company, and the number 1 to 8 represents eight filling heads, which is automatically brought by the equipment when filling, and has nothing to do with the sweetness and sourness, because the ingredients are the same. (Simply put, most of Heinz's equipment is imported 8-train machines, so the code of 1-8 is available, and now it has become 12 train).

The measured results of KFC show that the taste is completely the same, and the blind test can't tell the difference of taste at all. The KFC waiter said that if the tomato sauce is divided into sweetness, it will bring great cost. The tomato sauce equipment is produced in groups of eight, so the tomato sauce has the code of 1-8. For consumers, coding is a meaningless pipeline number.

Of course, strictly speaking, after all, there are eight pipes, and there will be a little error more or less, which leads to the difference in the amount of tomato sauce in each pipe, the different air in the package, and the different sealing of the package, and thus the different sweetness and sourness of the tomato sauce. It is said that there is a difference in the sweetness and sweetness of the eight codes, and it cannot be miscalculated.

But it is meaningless to simply say that the number is the sourest and the number is the sweetest, because there is more than one packaging machine, and the situation of each machine is different, and the equipment is often adjusted.