“Sadly the only Hario V60 02 that will work is the glass one which is 95mm. The plastic one is 102mm and does not work (too tall). Customer service excellent as usual.”
Thanks for the feedback! Quick note that you can definitely use a mug or carafe that's shorter than the included carafe to brew on the plastic Hario V60...
“Ratio Four Coffee Machine Review
The Ratio Four Coffee Machine is an impressive addition to any coffee enthusiast’s setup. Its sleek design and thoughtful engineering make brewing pour-over coffee nearly effortless. The machine consistently produces rich, full-bodied coffee with a flavor profile that rivals manual methods. The bloom cycle and brewing temperature are calibrated beautifully, mimicking the precision of a barista.
That said, there are a couple of drawbacks. While the exterior design is modern and appealing, there’s more plastic involved in the construction than expected for a premium product. It feels slightly out of place compared to the machine’s otherwise high-end appeal. Additionally, it would have been a thoughtful touch to include a few sample filters to help users get started right away, especially since Ratio uses proprietary filter sizes.
Overall, the Ratio Four delivers on its promise of convenience and quality, but there’s room for improvement in material choices and starter accessories. For coffee lovers who value aesthetics and performance, it’s still an excellent investment.”
Harry, thanks for the feedback!
Regarding materials, we chose a polymer instead of metal for the machine body for two reasons:
1. We couldn't get the design we wanted with stamped metal.
2. In high use situations, metal can scratch, and as the Four is intended to be rugged for hotel + office applications in addition to the home, we decided to go with this material as it supports our 5 year warranty span as well.
The Ratio Six is made of formed stainless steel and the Eight is made of die cast aluminum. As you can see from the retail prices, we were able to reduce the price of the Four and make it more approachable to more people by using polymers for the machine body.
We're seeing if we can include paper filters on a future production run; the filters available to include with production did not meet our standards for extraction.
Thanks again for the feedback!
“I own Bonavita and Chemex Ottomatic brewers. The Ratio 4 is my favorite of the 3 based upon the quality of the extraction and flexibility to use other filters/brewers. It is also the best option for one cup brews.”
“What a beautiful little machine!! Makes a great cup of coffee too!!
I love love love it!!
More than pleased with this purchase and would highly recommend it.
Two suggestions that might improve perfection:
1. The coffee pot seems like kind of a fragile glass. Maybe stainless steel as an option
2. I try to cut down on plastics so would have preferred a glass water container.?
Not sure if any of this is doable.
Thanks for making the ratio four!!”
“Just received it last week and have used it only a couple of times. So far, I really like it. I put a coffee cup under the filter basket, used the 2 cup water setting (10 oz.), and 2 1/2 tsps of coffee, medium roast beans ground on my Fellows Ode grinder (pour over grind setting). Very good single cup of coffee without having to heat up a kettle and pour over manually.”
