I've used this product since day one with the new coffee maker I ordered and so far, it has not failed to work as it is supposed to. I like that it is relatively easy to use and as long as you follow the instructions, there is no after taste or bitterness in your coffee. There is enough product per bottle to do two cleanings but I mainly use it in my single serving side so I can actually get 4 cleanings from one bottle. I use this product about once every couple of months, as I only brew one cup a day in my coffeemaker, and this keeps things working well and clean. I highly recommend this to keep that coffeemaker working in tip-top condition!

So far so good I only used it once but I did do two bottles because of my machine was way way overdue. It does have a terrific cleaning power as far as getting all the gunk out it's effectiveness is unparalleled and the size is terrific for the money. There's a lot of durability that comes with this liquid as far as getting through to all the intricate parts of your machine and there's no smell like you would get if you used vinegar so I am extremely pleased with this purchase I will be subscribing!

It can right on time, easy to use

Works great! You get a two pack, and the each bottle has two treatments each so its worth the money. Smell is tolerable, smells clean. I use a liquid measuring cup to measure out half of the bottle.

We first purchased Impresa Descaling Solution nearly 5 years ago, when our Keurig began having problems with dispensing. We hadn't descaled the machine at all for over one year but it was back up and running great after using the Impresa Solution. I followed the directions and noticed no aftertaste to the first cup of hot water out of the machine. A little later, we decided to upgrade to a Nespresso. Lesson learned from the Keurig was to not wait, so again the Impresa solution was used to descale and worked great with no aftertaste. Again we upgraded, this time to a Phillips LatteGo 3200. The descale light comes on, so I reached for the Impresa solution but noticed that Phillips is not included in the named brands. As others here have also noticed, there ingredients are not listed. Hmmm... After reviewing the Phillips owners manual, the section on Descaling specifically states, "Please use Philips descaler only. Under no circumstances should you use a descaler based on sulfuric acid, hydrochloric acid, sulfamic or acetic acid (vinegar) as this may damage the water circuit in your machine and not dissolve the limescale properly. Not using the Philips descaler will void your warranty." As an Engineer who began his career designing plastic and rubber parts, I knew where to find the manufacturer's ingredients. I've included a snip here of the main ingredients and their concentrations. (For those wondering what the rest of the bottle contains, it;s di-hydrogen monoxide aka water.) Now we have problem because the two main ingredients listed in Impresa's formula will specifically void your Phillips warranty. So if you're withing the 12 month warranty period and are prone to descaling your machine it could be an issue. But also highly unlikely. The only parts likely to be affected in the machine are the o-ring seals. After looking at them and doing some research, it's pretty clear they are a type of rubber called fluoroelastomer (FKM for short.) This type of rubber is good in high temps, durable, resistant to acids (including both used in the Impresa Solution), and it has a food grade version that is FDA approved. The o-rings could also be a type of silicone but that's less likely because they easily tear and attract dirt/debris. We've had our machine for 3+ year and as often as we use it, I'd expect to see small tears or cracks if they were silicone but there are none. If anyone has a spare Phillips o-ring, please stick a lighter under it and let me know the results: Silicone will burn and smell sweet. FKM will not easily burn and will stink if/when it does. So overall, I have no concerns about using Impresa Descaling Solution in my Phillips as far as impacting or damaging the machine. As far as food safety, the first ingredient is 7-10% Citric Acid. This one of the most common food additives in the entire world, and you will be hard pressed to go through your entire household and not find it as an ingredient. You will notice that it's classified as 2A which means it will irritate your eyes, the same as vinegar, lemon juice, or any other acetic acids. So it's perfectly safe unless ... you put it in your eyes. So don't do that. It will hurt. The second ingredient is 3-7% Sulfamic Acid. Sounds ominous, doesn't it? But it isn't. SA is used all over in food production for cleaning off equipment, from beer brewing and the dairy industry to ... you guessed it ... coffee and espresso shops. This is the main ingredient for removing limescale. It's rated as Category 2 Compound for both Eyes and Skin so again, don't pour it in your eyes AND don't use it as a moisturizer on your skin. It will hurt. Once it starts to hurt you're going to wash it off. And then you'll be OK. TL/DR: Great descaler for Keurigs, Nespressos, and Phillips machines. The ingredients are well-known and highly safe for use.

Bought this descaler (2 Pack, 2 Uses Per Bottle) – Made in the USA for our Breville espresso machine, and it worked great. It effectively removed buildup and helped keep our machine running smoothly. Easy to use and a good value for the price. Will definitely purchase again.

I rarely leave reviews, but I felt I must this time. My Keenstar 4 cup 3.5 bar espresso maker began to slow down: instead of a burst of steam for making my coffee in seconds, the machine became no faster than a peculator, with coffee dribbling into the carafe. At first I thought that the machine, which was only five months old, had simply quit working. But, here in Fort Worth we have very hard water (140 per whatever), which can create scale. So, I bought this product. I filed the carafe with half of the product (half the bottle), and then half water, poured it into the espresso maker, let it sit for a few minutes, then fired it up. When the light (indicating heating) had gone off (indicating ready to make coffee) I turned the dial, and a beautiful burst of steam came out, as it should. The water that poured into the carafe was very dirty with scale. I ran the machine a few more times with fresh water, until it was clear. The machine again works perfectly. I was dumbfounded that this product worked so well, and makes me rue past coffee machines that I disposed of, thinking they had simply quit working. If your espresso machine has slowed down, I highly recommend using this descaler.

Each bottle has enough solution to clean two times. That means you have enough to descale every three months for a year. I like that economy. This is the second time I purchased this product. I would recommend it to any one who has a single serve coffee maker. It will extend the life of your appliance.Thi

Me parece buen producto , muy bueno para descalcificar cafeteras keurig.

Funciónal para breville barista pro !!!

Works great and easy to understand. However, Amazon mess up with my order, I only got 1 bottle instead of 2 bottles but got a full refund of this product

Lo uso para descalcificar mi cafetera Keurig y funcionó muy bien. La próxima vez compraré el paquete de dos botellas, muy fácil de usar.

Buen producto