I bought a vacuum sealer from Food Processor, it seals the bags perfectly, but the containers of that brand are made of Tritan (Plastic) so I decided to buy glass containers, I bought 2 glass containers from Zwilling, and sealed them with the manual section of the Food Processor, however, after 3 days, they completely lost their vacuum. I thought it was the coupling from the Food Processor to the Zwilling.
I purchased the vacuum apparatus from Zwilling plus 2 additional glass vacuum vessels. Same result: none of the 04 containers hold a vacuum. They DO NOT hold the vacuum for more than 3 days. A pity that a brand that presents itself so well -apparently-, and of supposed German origin has such a lousy product. This affects the prestige of German products. In the end they will go to the garbage, more than 350 dollars.
The Fresh & Save product line is well thought out. The build quality is legit and it feels like the plastic lids will last about five to ten years of daily use. I used my starter kit for about one week and then I quickly ordered more containers. It's on the pricey side, but it seems well worth it to me.