And be aware that powders don't work well with the food saver sealer. I tried to seal some cocoa in jars - got cocoa in the plastic tube, and no seal on the jar. I tried putting a piece of wax paper between the top of the cocoa and the lid, but it still didn't work. Coarser powders, like sugar or salt might be OK; I haven't tried them. But I do like the gadget; I seal up lots of things in jars that I used to put in the freezer - nuts, for example. And even cookies - after Christmas last year we both wanted/needed to take a break from the sweets, so I sealed up the rest of the Christmas cookies in jars, and could open them slowly over the next several months. Worked just fine; they weren't stale.