“This is more of a 4.5 star review. Overall we are so happy with our Ratio Six. It brews delicious coffee of all roasts. It does it both quickly and quietly, with a bed of grounds that is beautifully flat. As an aside, I don't know how someone can't see that the brew basket is made of plastic. My only minor qualm is with the carafe lid which needs a redesign. I'm happy with the performance of the carafe in maintaining temperature, and I don't even do a preheat rinse. However, when pouring with a volume less than 4 cups of coffee, the liquid hugs the top edge of the spout and lid and doesn't pour smoothly. First cup with a fuller carafe of 4+ cups works great (looking just like the photo above), but I always have to take the lid off for my final pour to avoid splattering coffee. I imagine that simply removing the section of the silicone seal from the spout area will do the trick and allow the liquid to maintain adhesion with the lower edge. That section of silicone doesn't seem necessary as the carafe has a small gap there regardless. It's not a deal breaker by any means, just something to work around. But for the price, Ratio really should fix this, and I think they can do it by only modifying the lid. I still highly recommend this machine.”
“Plastic coffee basket - Like many people considering a Ratio, I had been looking to for a plastic free solution to coffee making that still involved a paper filter and is easy to do. I was very bummed to receive the Ratio and see that it had a plastic coffee basket.
I purchased the glass carafe for an additional $60 to solve this issue, and it works great. Really wish Ratio would just do away with the plastic all together or at least state that the basket is plastic clearly in the description. SO close to a perfect coffee maker!
Otherwise I'm very satisfied with the coffee maker itself and all of our brews have been coming out great.”
“I have a fairly strong background in specialty coffee. At the time I was certified at the highest level the SCA had for roasting, and had my own business for 5 years. A lot of my training and experiences was around coffee extraction and getting the most out of the beans that I could. After moving from a good reputable drip brewer to the Ratio Six - I am very impressed with the brew quality. It's very easy to use and looks very nice. I don't think I do anything special - pre-wet/wash filter, level the grounds by tapping the side of the filter holder, then press brew. Any critisism I have seen are really unfounded or maybe even rediculous in my opinion. As with any brewing method, you can't be afraid to play with your grind fineness - If you don't, you are likely missing out on some great flavors. This is a very legit machine and I would highly recomend it!”
“Customer service and communication regarding an issue with the first machine delivered was excellent. After some grind size adjustments I have found the machine to make pour over quality coffee consistently. The flat bottom baskets helps to provide even bean saturation over conical filters to produce a consistent brew. Pre heating the insulated carafe goes a long when to keeping your fresh brew hot longer. I just wished I had waited a little bit longer to order and my ordered would have qualified for a discount.”