Each product we feature has been independently selected and reviewed by our editorial team. If you make a purchase using the links included, we may earn commission.

It's time to Prime.

Meal containers are a kitchen staple. As a way to save money, plan healthy meals in advance, stick to certain diets, or make the day-to-day a breeze, people are getting busy on Sunday nights to plan a week's worth of meals that can be packaged in containers and brought into the office for breakfast, lunch, or even dinner.

Food containers are a key part of this make-ahead strategy. They're necessary for portioning, and they keep food fresh and easy to grab when you're on the go. But as any meal prepper knows, not all food storage containers are made equally.

Some have flimsy lids that break easily. Some are entirely too small for a portion; some are too big to fit into a purse or lunch tote. Yet these glass meal containers from Prep Naturals are selling like crazy on Amazon, where almost 3,000 people claim they're the best they've ever gotten their hands on.

Prep Naturals Glass Meal Prep Containers
Photo: Amazon

Why? Well, they are free of BPA material, as they're plastic-free and made of glass, which is better for the environment and your health. They are both airtight with a firm, SmartestLock locking lid and properly portioned to help you manage your macros (if you're into that sort of thing). They are also freezer, microwave, oven, and dishwasher safe, so they're easy to store and clean.

A few Amazon customers have said:

"I love these containers! Perfect for meal prepping! I like how the tops have vents! I've been using these for a few months now and no complaints! Probably going to order some more. They're good quality!"

"These glass containers are awesome! They snap shut really good with no leakage. Made with great quality. We use them all the time on our outings and have been very happy with the level of quality."

"These are spectacular!!! They are airtight so the week's food I do for lunches and such stay fresh for the whole week. They are strong and very durable. The four part latching system insures your food is completely sealed. The seal ring is removable for easy cleaning. I love these !!!"

If you're in the market for new containers or trying to replace your plastic with more sustainable glass, you can get them on Amazon. Don't forget to send in a review — just a few more and it'll hit that 3,000 mark!