Soil and rocks maybe. not too sure.
So to be a food handler, <u>you require a license. Almost all states require</u> that at least one person in a food truck business or any type of business(where there is unwrapped foods or food preparation) <u>is required to have a food handling permit</u>. It is also referred to as a license, certificate, card, or credentials. You get the point.
Blue would be the hottest. And red would be considered the coolest.