WMF Top Serve Ø 13 WMF Top Serve Storage container, canister Keep Fresh Valve Currently discontinued. This item has been stored at home for a long time. I found it while organizing my parents' house. I used it a couple of times for a short period to store vegetables, but I have other similar containers, so I'm letting this one go. I have washed it, but it's in excellent condition as it has hardly been used. With box. As shown in the photos, there are stains on the box. WMF is a German brand that offers high-quality kitchenware. By pressing down on the valve on the lid, you can keep the inside of the container close to a vacuum state, which helps to keep food fresh for longer. The glass container is resistant to odors and color transfer. It is round, 13cm in diameter, and 10cm high. A perforated surface is attached to the bottom, which is likely used for draining water, etc.