Ratio Coffee Reviews

Name: Ratio Coffee
Address: 1204 SE Water Ave, Suite 15, Portland
Rating: 3.96

4.0 Rating 407 Reviews

70 %

of reviewers recommend Ratio Coffee

4.0

Based on 407 reviews

Shipping & Delivery
Delivery Methods	Courier

Ratio Coffee 5 star review on 18th November 2025

Anonymous // 01/01/2019

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“Review: The Ratio 8 Coffee Maker — Where Biohacking Meets High Design For years, I was fiercely loyal to my stainless-steel French press. It was simple, ritualistic, and produced delicious coffee. That is, until I listened to Dr. Rhonda Patrick explain how unfiltered coffee, French press, boiled, and espresso, contain diterpenes, oily compounds that can raise LDL cholesterol and other lipids, potentially increasing cardiovascular risk. Her fix was refreshingly simple: use a paper filter. An unbleached, non-toxic one, of course. And so began my search for a healthier coffee maker. Easier said than done. I hadn’t realized how challenging it would be to find one that didn’t quietly leach microplastics. Weeks later, after endless fine print and near misses, I landed on the Ratio 8 S2: arguably the most expensive non-espresso coffee maker ever made, but also the most exquisite. It’s gorgeous, all sculptural lines and hand-blown glass. But beyond beauty lies brilliance: a precision-engineered pour-over system. The result? Cleaner coffee, still rich in polyphenols, without the diterpene drama. Yes, the Ratio 8 is indulgent (I waited for a sale). Each morning now begins with a moment of beauty, and truly delicious coffee, design meets intention, with a healthier heart in mind.”

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Posted 1 year ago

“I have tried to write customer support several times from my other email and they have not gotten back to me. The support has been very bad. The product is definitely not worth $800. There is so much condensation around the head that it seems very sloppy and drips all over the heat protector. The filters they recommend are not good. I have had to make the coffee very coarse or else it will overflow out of the filter. When I pay $800 for a machine I am expecting it to work perfectly. My experience has not been worth the price of the machine thus far. I am hoping they respond to my other email and give me better tips for a better experience.”

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Posted 1 year ago

“Takes forever to clean as grounds stick even dry. Looks stained after just two uses even cleaned in hot water. Expensive- Sucks”

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Posted 1 year ago

Hi Ralph, thank you for sharing your feedback. We’re sorry to hear that cleaning the Able Basket has been frustrating. The basket is made of stainless steel and is dishwasher safe, which should make cleanup much easier. Just place it on the top rack after rinsing out the grounds.

Posted 1 year ago

“Hi, I love the Ratio 8 Series 2, but the thermal carafe is honestly really poor. The coffee gets cold quickly, and therefore is a useless purchase.”

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Posted 1 year ago

Hey Tamer! Sorry to hear this - please contact us for a return under our 30 day "love it" guarantee!

Posted 1 year ago

“Hells but doesn’t keep the coffee as warm that long”

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Posted 1 year ago

“Exceptionally disappointing.”

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Posted 1 year ago

“Although we were very excited for a low plastic coffee maker, we were very disappointed with how expensive this machine was ($649) and how long it took to get it. I ordered the machine in May and it arrived at the end of September. We were surprised by the lack of ability to preset the coffee maker the night before. Additionally the water repeatedly overflowed the filter in the basket, despite using coarser and coarser grinds, and the recommended filter suggested on the website. We were also disappointed the machine didn’t come with any filters to begin with as an example. It also takes a very long time to brew, sometimes 10-15 minutes. Lastly, although the glass carafe is lovely, it doesn’t maintain heat well at all, so the coffee is quickly cold. In an effort to remedy this I looked to see if I could purchase a thermal carafe, but it was out of stock. Overall this was an incredibly disappointing experience.”

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Posted 1 year ago

“Excellent coffee brewer.”

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Posted 1 year ago

“Removed from the shipping box and immediately replaced it as the plastic base made it top heavy, overall much lighter than the original and cheap looking to boot. Highly disappointed. No longer a premium appliance. Returning it immediately. P. S. The original has a nice heavy power cord... Series 2 power cord skinny and again cheap looking Elictrically adequate I'm sure... But seriously?”

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Posted 1 year ago

“I can't review this machine but as far as service from the company, I would call it poor. They do not offer an exchange. In order to exchange the coffee maker for another color, I had to reorder (which means I've paid for 2 machines at this point), and do a return. The rate at which the company responds is very slow 2-4 days for every email sent. They do send an automated message in the meantime. I've been waiting for a return label for shipping (costing me $26.00) because apparently, everyone is out of the office for the rest of the week (I called on Thursday). I don't understand why they didn't automatically send me a return label through email when they realized I was returning the white machine and purchasing the black machine. Then they could have deducted the shipping costs from my return. Instead, 5 emails later, and I'm still waiting for a return label. I've got over $700 into this, and I'm still waiting for a machine to be delivered to me, 2 wks later.”

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Posted 1 year ago

“This machine makes a fantastic cup of coffee. I love how hot the coffee comes out, and the smooth flavor.”

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Posted 1 year ago

“We were so excited for this purchase and it honestly fell a bit flat. This is a premium product, or so it says, and we received a defective carafe and a damaged package upon arrival. We called customer service to have this taken care of and the first response was to try to pull off the plastic ourselves. This not only will not work, it also is not the answer that we were hoping for considering we paid $400 for this item and it arrived damaged. We are currently still waiting for a replacement. The coffee maker itself makes nice coffee but the customer service has not impressed and is making us consider the electric chemex instead.”

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Posted 1 year ago

Hi Allaire, thank you for sharing your feedback. We’re so sorry again about the carafe arriving defective and for the rocky start with service. I’m glad to share that your replacement has now arrived, and we hope it helps you enjoy your Ratio even more!

Posted 1 year ago

“This is a replacement carafe and the lid doesn’t have a tight fit like the original did. Disappointed in that change.”

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Posted 1 year ago

Hi Stacey! Thanks for the review; if you'd like we can send you a brand new series 1 thermal carafe at no charge to you. Just let us know with an email to hello@ratiocoffee.com and cc mark@ratiocoffee.com Even though series 2 doesn't seal 100% it holds the coffee temp very high for over 2 hours (and reviews from 3rd party sources confirm this) so we decided to proceed with that design for its simplicity. Thanks very much!

Posted 1 year ago

“I really love the ease and and quality of the ratio six machin”

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Posted 1 year ago

“EXCELLENT RATING 5 The BEST glass carafe made for making pour over coffee!”

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Posted 1 year ago

“Excellent quality and great coffee”

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Posted 1 year ago

“Fantastic coffee maker! I highly recommend!”

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Posted 1 year ago

“I use the Ratio Four Glass Carafe to prepare my pour-over in the morning. It looks super cute in my kitchen, and seems durable and easy to clean, so an all-around win!”

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Posted 1 year ago

“It’s a beauty!”

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Posted 1 year ago

“Simply the best coffee machine out there”

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Posted 1 year ago

Ratio Coffee is rated 4.0 based on 407 reviews