Very light & tightly sealing plastic food storage recco?

What about the disposable food containers from Glad and such companies? Cheap, light, durable.

I've used Lock & Lock containers that have flip locks and silicone seals for carrying camera gear and electronics. Flip-it and Snapware brands have similar features. They offer divided models, but the sizes will be limited.

I've never considered them to be ultralight, but they are effective for the weight. The next step up would be Otter box and Pelican at much greater expense, weight and bulk. Where they seem reasonable to store delicate items, they seem heavy for food storage.

I wouldn't trust the light, cheap, semi-disposable rigid containers made by Zip lock and others to stay sealed in my pack when squeezed by all my other gear— might as well have zip lock bags. The Japanese bento style lunch boxes come with many smallish divider options, but have similar weight as the locking ones mentioned above.

I use lightweight plastic sandwich bags with a heat sealer to package my food. Most freezer bags weigh about 8 gm each compared with about 1 gm ea for a sandwich bag. If you use a heat sealer, you need only use that part of the bag needed to contain the food; the rest of the bag can be trimmed away reducing the weight further. Also, it is easy to make a two, or three, compartment bag by "cross sealing". You can get a heat sealer from Amazon for about $35. The sealed packages are quite robust. I carry a 2 cup, snap-top Glad storage container for rehydrating my meals. It weighs less than an ounce and is easy to clean. Glad also makes a three cup container that weighs about 1.1 oz.

Excellent suggestions and i went with the Lock and Lock!