Why do food companies put those dots of colors they used on their packaging like on chip bags and some yogurts

Answer 1

Happily is pretty close with her answer.
Those dots are color registration marks. Sometimes these are dots, sometimes these are bars of color. That you are seeing only dots, and not circles with some color in and some color outside the circles, shows that the presses printing the bags and containers are doing so correctly, i.e. the printing is "in registration." These presses run at very high speeds, but with special registration scanners, the press operator can monitor and adjust the printing. Some machines are even self-correcting.
It's pretty amazing to watch one of these machines in operation.

Answer 2

I was wondering about that as well and always thought the dots were there in order to show you what colours they have combined together to make the mixed colours of the package!

Answer 3

It is a system to let them know the day the food left the company to be shipped to the stores. That way if there are any recalls ie. the spinach incident, then they know what product was in the infected bunch.

Answer 4

its so they can know which product was made early and which one to sell the fastes for example a salad from yesterday would have a green dot and a salad made today would have a red the sales persons knows he would have to sell the green one quicker so the they can get rid of the oldest product

Answer 5

It's used for inventory control. Perishable items are color coded so that when you have to rotate stock, all you have to do is take all the items with the same color.

Answer 6

i don't know. i wounder too wen you find out tell me

Answer 7

i wonder that too but kinda forgot about it.