A permanent marker means you can't as easily change out the contents of a container or bag, while a dry-erase marker lets you ...

The best meal prep containers are from Bentgo, ... You can label Stasher Bags by writing directly on them with dry erase markers, and they have an air-tight Pinch-Loc seal.

A permanent marker means you can't as easily change out the contents of a container or bag, while a dry-erase marker lets you reuse them over and over without any confusion or mess of strikeouts.