Keurig Compatible Descaling Solution - Descaler Cleaner Concentrate Kit For All 1.0 & 2.0 K-Cup Pod Machines and Espresso Machines - (2 Bottles, 4 Uses Plus 4 Filters)Compact by Design (Amazon-developed Certification)

This is a great value for the money. The cleaning power is from what I can tell the best. The bottles did not leak during storage.It improves the quality, smell of my coffee after use.

I love that I can order these on Amazon and have them quickly. They work well in my coffee maker and I love having them on hand for when the machine tells me I need to descale. Instructions for use are easy to understand!

It did work, but it seems like strong vinegar works better and is cheaper.Plus my Keurig couldn’t completely be fixed so I had to get a new one. My old one was 9 years old though. But I loved that coffee maker so not being able to make it brew coffee without unplugging it and plugging it back in 4 times per cup is sad.The new Keurigs look and feel cheaper. They are in fact cheaper but I already miss the old one with the blue light on the water container, and would have paid a bit more for it. Ah well.

I immediately saw results when using this descale. Instructions are easy to follow you can see how clean the machine is by the clarity of the outside water reservoir. I'd much rather drink coffee made with clean water than water that has built up all over the place!

I've owned my Kuerig K40 single serve coffee maker for about 8 yrs. Never had any problems. I always use Folgers med. roast coffee k-cups and Deer Park bottled spring water in it. Nothing else and I've never cleaned it. 4 or 5 days ago I noticed it making a noise that I haven't heard before so I decided to try a descaler. I got FreshFlow's coffee machine descaler w/4 filters. Took the bottom of my machine off to find no water filter inside. Put it back together and followed the directions on the back of the two bottles of descaler. "Man! What a difference!" No more noise with a better taste and I can actually see steam coming from each cup of coffee. This stuff works!10-12 years ago I got the same Kuerig K-40 single serve coffee maker and was using tap water. My mom would come over once a year to run white distilled vinegar through it to make the coffee taste better. That coffee maker only last 4 or 5 yrs. This time around I used "Deer Park" bottled spring water. It lHas lasted a long, long time!Thanks FreshFlow!

I’ve been using this product religiously every 2 months for the last 4-5 years. It seems to work as our Keurig elite machine has always worked flawlessly.

It’s ok. Vinegar solution does just as well and lessecpensive

Love it