I like using plastic storage containers as I have kids (including a toddler) who sometimes like to sneak in my fridge so having containers that won’t break is imperative. This is made with very high quality plastic so it’s sturdy and will last a good amount of time. I didn’t notice any staining on the plastic even when using red sauce. The lid sits very secure and firm and keeps food very fresh for a good amount of time. Very happy with this!