According to a technician from Heinz (Qingdao) Food Co., Ltd., one of the tomato paste manufacturers,...the tomato paste is produced by their company. The numbers from 1 to 8 represent the 8 filling heads, which are used when filling.

The number automatically attached to the device has nothing to do with the sweetness and sourness, because the ingredients are all the same.

(To put it simply, most of Heinz's equipment is imported 8-row machines, so there is a code of 1-8, and now it has become 12 rows) KFC's actual test, the taste is exactly the same, and the blind test can't tell the taste difference at all.

The KFC waiter said that dividing the sweetness of ketchup will bring a lot of costs. The ketchup equipment is produced in groups of eight, so ketchup has a code of 1-8.

To the consumer, coding is a meaningless assembly line number.

Of course, strictly speaking, there are eight pipes after all. There will be a slight error, which results in different amounts of tomato paste in each pipe, different air in the package, different sealing properties of the package, and

This results in different levels of sweetness and sourness in tomato sauce.

It cannot be wrong to say that there are differences in the sweetness and sourness of the eight codes.

But simply saying which number is the sourest and which number is the sweetest is meaningless, because there are more than one packaging machines, the conditions of each one are different, and the equipment is often adjusted.