[AnimalMuppet]

I wonder if it's to control the spread of mold/fungus. If I have a bunch of berries in a bin, and one of them has mold, I could lose a big chunk of the bin. But if they're in little plastic containers, I only lose that one container.

(Yeah, I know, the mold may have spread before they were put in the containers. It still limits the spread, even if it doesn't totally eliminate it.)

[blackeyeblitzar]

I don’t think so because all the berry containers have holes in them. But the other produce don’t have holes and either have a harder but flexible plastic top, or plastic film, or just shrink wrap around the package.