Zwilling is my go to for everything kitchen related, thanks to its high quality and sleek design, so it saddens me how incredibly disappointed I was with this purchase. I cleaned out my fridge, prepared all of my vegetables and separated them all into their own vacuum sealed bags. 2 days later, there was a horrendous stench coming from my fridge from my broccoli in one of the Zwilling bags. I thought the whole point of vacuum sealing was to seal in freshness, but it did the complete opposite to my broccoli. It still looked and felt fine, but the smell and the taste was unbearable. I've never had this problem with Ziploc bags, and I guess that's what I'll have to stick with from now on.