There are many test sites for the 2121 nutritionist exam. Nutritional catering is just one of them, but even this test site involves a lot of contents, and one of the most important points is how to identify the rescheduled food. In fact, to identify the rescheduled food, we can identify it by looking at the color, looking at the traces and rubbing it with our hands. What is the specific identification result? Let's take a look at it together.

1. Look at the color:

When purchasing food, consumers should carefully observe the production date and confirm that there are no traces of modification before purchasing. Generally speaking, the original food production date is clean and bright; After the change, it is usually blurred, with ink around the date and dark color.

2. Look at the traces:

Regular food manufacturers use advanced coding machines, and the printed date combinations are dotted; Suppliers generally use portable simple coding machines, and the date is written in ink, not in dots. For the same food, if there are two kinds of dates found at the time of purchase, the dotted one is usually the date printed by the original manufacturer.

3. Wipe by hand:

The original production date on the product package is usually the production date of steel seal or electric spray, which cannot be directly erased by hand; And the changed production date, with a touch of the hand, the color began to fade.

There are many points about the nutritionist exam, and this is just one of them. I don't know if you have learned it. For more points about the nutritionist exam, you can learn from the exam outline or come and communicate with other friends.