I've been using these storage containers for a couple years now and they do not stain. I have some in glass and some plastic. The lids are all plastic and fit both materials. The seal is excellent and I can marinate food and flip it over without liquid spilling. They stack neatly in the fridge and the rectangular shape helps avoid wasted space. The lids click lock and have vent holes for heating without removal. This can be good, but also bad. The lid sits inside the rim of the container and you have to make sure not to fill it too much or when you put on the lid the contents will come out of those vent holes. The lids also don't stack as neatly as I'd like in the cabinet, but it's not a dealbreaker. Overall, I would recommend these.

These containers are very useful for storing food. They close tightly and keep everything fresh for a long time. I like that they are clear and easy to stack. Very convenient for everyday use. Highly recommend.

I use these Rubbermaid Brilliance storage containers for all my dry ingredients. I'm an amateur home baker and I bake a lot of bread. I also live in a humid climate. I love knowing that my ingredients are going to stay dry and fresh after I open them for a long time! They even stack wonderfully for easy storage. If you bake a lot and always have open paper bags of flour that get flour everywhere, it's time to upgrade to these!

I have purchased several of these containers and have thrown several of them away due to cracks in the material. I emailed Rubbermaid which said they are not to be used for hot liquids but they are microwavable use. I was using these products as meal preps to take for lunches because the liquids stays inside the product with no spillage. After several times of use the bottom of the product ends up cracking. I like the design, how the food stays sealed, how transparent and the capacity of the product but I don't like how the product becomes defective.

I had to buy more of these. It is the best airtight container on the market. Keeps food fresher with a great seal. I even got some for my friends.

I have many other containers, but the last two 4.7 cup containers do not fit the bottoms and lids. Have to use a screwdriver to pry the lid off thr container. Problem with size!!!

I have three of these for my breakfast cereals and they are amazing! The keep the cereal fresh and holds almost a whole box. It has saved me money by keeping food fresh and crisp to eat.

I just love l9vevth8s cereal keeper. It keeps my cereal crispy and fresh. Once closed properly my cereal stays fresh longer. It hold way more than the small one I use to buy.. easy to clean

Where can I purchase more of these? I love this container. I need more for my cereals, grains, baking goods and so much more. It makes my pantry look amazing.

I bought a set of these for my dad several months ago. However, I don't keep my receipts for things like this. It worked fine... until it didn't. Now the lid refuses to come off. My dad is in his 80's. I finally got the lid off. The lid LOOKS fine. I put it back on and sealed it, and once again, the lid won't come off. I put the lid on the other container, and confirmed that the problem is the lid, not the container. I came to the website to see if they could give me a replacement (at least the lid), but their warranty program requires a receipt. Sigh. I cannot recommend these.