Review on 🔧 NutriBullet Replacement Cup and Blade Set by John Invert

We purchased this item because we needed a different set of cups and blades. However, after a month of such use, we noticed leaks as well as a brown substance oozing from the underside of the blades. Please look at the photos. This is very disappointing as this material is cheap. We have 600 over 2 years and the material never had this problem. This brown residue sometimes seeped through the blade and into smoothies and juices, which it soaked into before we knew it and we were drinking it. Once we noticed that we should have cleaned it thoroughly but I have to say I don't understand why this is a BESTSELLER when it already has this problem and many other customers are having the same problem. I'm concerned about how this is happening and I don't know what or how many times it's been in our juices. Also note that in images IMG_5057 and IMG_5058 the blade appears to be moving up and down a bit and the brown substance is being sucked through it.