A different take on reusable K-Cups, Fill N Save's version is 100% stainless steel.
Like many other reusable K-Cups, the Fill N Save Stainless Steel version is compatible with almost all Keurig models but won't work with Keurig 2.0 Plus brewers or the new K-Mini, K-Mini Plus, or K-Duo.
What makes stainless steel different than plastic?
Aside from that, there's no tangible advantage to a stainless steel reusable K-Cup.
As for Fill N Save's reusable K-Cup design? There's plenty to talk about there.
While you get better durability with this stainless steel reusable K-Cup, you sacrifice both ease of use and coffee quality.
First, the K-Cup has to be placed in your machine in just the right position in order to work properly. Admittedly, this isn't a huge deal once you get the hang of it, but it also means this version isn't as intuitive and user-friendly, especially if it's being used as a shared accessory for an office break room or a large family.
Second, the lid dumps water in a little too quickly, resulting in a frustratingly high number of clogs. Clogged filter baskets mean watery messes, and no one wants that.
The Fill N Save reusable K-Cup is the best stainless steel model available (if that's what you're looking for) but it isn't as good as the many BPA-free plastic options above. And, ultimately, the stainless steel advantage on such a small, inexpensive accessory is negligible in our eyes.
