Review on 🌱 Eco-Friendly Reusable K Cups for Keurig 2.0 & 1.0 Brewers - Refillable Coffee Filters, Stainless Steel Mesh, Easy to Use, Check for Compatibility (Pack of 4) by Jeff Figueroa

This product works very well and is much more economical than buying K-cup coffee For optimal use, grind Your own coffee beans. . Many reviews say they found the coffee weaker and many say it was stronger. I venture to guess that this is due to the grinding of beans. I use a burr grinder set alongside the machine's finest grind setting. If you use a rotary grinder. Buy a coffee grinder with burrs and spin it to grind spices. If you're only using store-bought "ground" coffee, you're probably using a grind size suitable for a drip coffee maker or maybe even a coffee maker. They are not using the grind size that comes with purchased K cups. Look at the grind size. Also, these filter blocks don't build up pressure like off-the-shelf K coffee mugs, so you need to factor that into the equation. If your Keurig has a "strong drink" option, use that. I am satisfied with these devices and they suit me perfectly.