I zweckentfremde the boxes for storage of hookah tobacco, which is why my vote can not relate to food. The boxes hold absolutely deliver what they promise, it penetrates no odor to the outside what the airtightness confirmed - as soon as you open the lid you smell immediately intensive tobacco, so also evaporates nothing imperceptibly. So far, they also keep close what liquid, in the specific case here, the molasses concerned,. At times, I turn to the boxes to keep the tobacco moist and thereby running molasses directly on the cover, is not leaking.