containers were all air tight. we had to wash the lids off before opening them but that was all.
this is where i think people have the most concern. how do you use your food storage? it's very easy. many of the products you can buy are single ingredient foods, so you simply select out the items you want, preparing your meal from these items. opened containers can have their lids put back on and stored away for a pretty long time. if it's a bucket, simply force the lid back down to reseal it. i tap it with a rubber mallet if it's available, otherwise i can use my knee, 