Frischhaltedosen with special clip-locks are available from numerous suppliers. But mostly, the food storage containers made of plastic! For use in the refrigerator for storing meats and cheeses: Optimal! But that I have in terms of cooling and heating food in plastic containers so my problems! Who knows which substances may be released by heating the vessel and get into the food! But now there is a new set of Emsa Frischhaltedosen made, hardened diamond glass and a plastic cap with clip and Close Snap! The container can be filled easily and thanks to the practical lid the containers are hermetically sealed! Sounds good! And is good! Caveat: the Emsa Frischhaltedosen please me very well and are often in use. The set consists of a total of 3 Frischhaltedosen in size from 0.2 liters, 0.5 liters and 1.3 liters. In the smallest size would be able to dispense good because it fits as good as anything in the small glass container. For that I find particularly the 1.3L container simply good! After dinner, simply fill remaining residues in and close to the practical lid. Then in the freezer. If you want to the food after a few days then dish ...! Just out of the freezer straight into the microwave! Also in terms of optics, the glass containers are well done! Food can be after heating can in the glass container and does not need it to pour! Even cleaning EMSA glass container is unproblematic! And contrary to some plastic vessels must have no doubts as discolouration etc.! Therefore: 5 stars for really practical kitchen gadgets made by Emsa!