WHAT IS THE PROBLEM? Over time, Keurig machines build up old grinds and residues, tainting the flavor of your coffee and espresso. Mold and Bacteria also grow inside of these areas in your single cup brewer. 😱 These are always present inside of the dark and wet parts of your coffee maker's brewing system. And most probably you and your family are drinking UNSAFE coffee right now. 😳 CAFFENU's proprietary BIODEGRADABLE NON-TOXIC cleaning formula cuts through and eliminates these residues, bringing taste back to normal and making your coffee Safe To Drink Again. Even cleaning your machine's needle. LENGTHENS THE LIFE OF YOUR MACHINE: Residue build ups in the pack holder, funnel & exit needle can eventually cause damage to your machine. Regular cleaning using CaffeNu's cleaning cups restores these elements and enhances the lifespan of your machine 🌱 SAFE & EASY TO USE: Completely safe - non-toxic, biodegradable and gentle on your Keurig cup brewer (1.0 & 2.0-compatible). Easy to use - simply brew one large cycle with the cleaner pod, then one large cycle with water-only (discard liquid & cleaning pod) 😜 100% SATISFACTION GUARANTEED: If you are not fully satisfied with our product, simply let us know and we will give you a full rebate. No questions asked. So buy with confidence! 👍