What exactly does TDS tell us?

What exactly does TDS tell us?

Serving Coffee in the Epicenter

The Turkish specialty-coffee community is coming together to support earthquake relief. BY MICHAEL BUTTERWORTHSPECIAL TO BARISTA MAGAZINE ONLINE When Niji Coffee went live on Instagram, it felt as though the entire Turkish specialty-coffee community was watching with bated breath. Niji Coffee made a name for itself in the Turkish specialty-coffee scene when, as a relatively […]


An In-Depth Look at Gruppo Cimbali’s Coffee Technician Wheel

The Coffee Technician Wheel is a new tool that helps technicians understand the complexity of coffee extraction. BY VASILEIA FANARIOTISENIOR ONLINE CORRESPONDENT Photos courtesy of Edgardo Ferrero and Espresso Academy Coffee technicians are responsible for a complex set of tasks related to the production and extraction of coffee. They manage customer requests and need to […]


Miami-Made Panther Coffee is Popping Up in Manhattan

Beloved Miami specialty coffee company Panther Coffee is making its first major New York City showing with the opening of a popup shop in Soho. With a soft opening scheduled…


Sumatra Coffee Farmers See Gains Through Agroforestry and Organic Fertilizer

Farmers in Indonesia’s Lampung province are making their own organic fertilizer in order to lessen reliance on volatile external supply chains. They’ve also diversified the number of crops they grow,…

What exactly does TDS tell us?

Ethos Agriculture’s Journey from Vision to Impact in Coffee Sustainability: Part Two

In the second half of this article, we discover how the Coffee Barometer attempts to bridge the gap between discourse and action, envisioning a sustainable future for the coffee sector. BY VASILEIA FANARIOTISENIOR ONLINE CORRESPONDENT Featured photo courtesy of Rodrigo Flores via Unsplash As we embark on the second part of our conversation with Ethos […]


The Slingshot Chalice Puts a New Spin on Espresso Dosing

Hong Kong and Australia-based coffee equipment maker Slingshot Technology recently launched the Chalice Distributor Cup, a multipurpose espresso preparation tool for baristas. Displayed in its…


Girlsplaining Workshop Unites Women in Coffee in Quito, Ecuador

Meet Camila Khalifé, the brains behind Girlsplaining, a unique coffee learning experience with an emphasis on creating space for women in the industry. BY JORDAN BUCHANANSPECIAL TO BARISTA MAGAZINE Photos courtesy of Camila Khalifé Men may hold most of the positions of authority and teaching roles within the specialty-coffee industry, but Camila Khalifé, the owner […]


Know Your Sweeteners: Agave: Part One — Indigenous Use

Known today primarily as a sweetener, agave can be traced back thousands of years. BY EMILY JOY MENESESBARISTA MAGAZINE ONLINE Featured photo by Bruno Cervera via Unsplash Recently, we launched our brand new article series “Know Your Sweeteners,” where we’re discussing a variety of sweeteners and syrups, and analyzing the unique characteristics of each one. […]

What exactly does TDS tell us?

Oklahoma’s T3 Roasters Completes a Historic Opening

Oklahoma-based coffee company T3 Roasters has opened a flagship brick-and-mortar roastery and coffee bar called T3 Coffee Co., inside a thoroughly remodeled historic building in downtown Collinsville. The building is…


Serving Coffee in the Epicenter

The Turkish specialty-coffee community is coming together to support earthquake relief. BY MICHAEL BUTTERWORTHSPECIAL TO BARISTA MAGAZINE ONLINE When Niji Coffee went live on Instagram, it felt as though the entire Turkish specialty-coffee community was watching with bated breath. Niji Coffee made a name for itself in the Turkish specialty-coffee scene when, as a relatively […]


Philadelphia’s Café Don Pedro Seeks to Build Up Small Businesses

A Dominican-owned coffee roasting company called Café Don Pedro recently launched in Philadelphia with ambitions for direct trading and boosting more Latino-owned small businesses throughout its supply and distribution networks….


Girlsplaining Workshop Unites Women in Coffee in Quito, Ecuador

Meet Camila Khalifé, the brains behind Girlsplaining, a unique coffee learning experience with an emphasis on creating space for women in the industry. BY JORDAN BUCHANANSPECIAL TO BARISTA MAGAZINE Photos courtesy of Camila Khalifé Men may hold most of the positions of authority and teaching roles within the specialty-coffee industry, but Camila Khalifé, the owner […]

What exactly does TDS tell us?

What exactly does TDS tell us?

minimum dose size?

Jan 31, 2024 |

I use the Hario switch to brew my coffee and am trying to reduce my caffeine consumption. Hence I would like to brew smaller cups of coffee. I am currently using 10g of coffee with 160g of water. (1:16 Ratio) I am wondering if there is a minimum amount of coffee...

What exactly does TDS tell us?

So TDS Stands for total dissolved solids and is used commonly by the Coffee community to measure "extraction yield" in percentages, or similiar.

The meter itself, as far as I know, measures the samples conductivity, especially focussing on dissolved/dissociated metal cations. A review on another tool, which may be more interesting because of it's higher specificity, has been done by James Hoffmann (the Coffein Meter).

My point is, that in my mind, metal cations could as well be from the metal used in boiling the water, burrs grinding the (slightly acidic Coffee), paper Filters, and other stuff. Of course, you probably could calibrate your device with such data, tho I wonder how much these variables are dependend on external factors, therefore a calibration being close to useless. Also, I don't see anybody publishing their calibration results…

So, what exactly does a TDS Meter tell us?

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What exactly does TDS tell us?

Perfect Little Beans

Chinmey Hill Coffee uses specialty-grade beans with zero primary defects (such as black beans or sour beans) and less than five secondary defects (such as broken beans). This is important because primary defects will greatly affect the taste of the coffee. Having zero defects allows the coffee to be the most optimal flavor.

Window for Optimal Flavor

Chimney Hill Coffee ships our coffee the same day it was roasted, so you will receive it before it enters the window of optimal flavor.  This means you’ll never miss the opportunity to enjoy the coffee’s peak flavor.

Coffee Ratings

Coffee undergoes many scoring processes by professionals who achieved their Q Grader certification. Coffee is first graded when it’s green. If there are defects the coffee is determined to be “not-specialty grade”. For those coffees that pass green grading, they are sample roasted and cupped. (Cupping is the official term for critically tasting and scoring coffees. The official cupping form is standard worldwide, and where the 100-point scoring system comes from.) A coffee’s dry fragrance, wet aroma, flavor, aftertaste, body, acidity, balance, and overall impression are taken into consideration while uniformity issues and defects, will lower the overall score.

Specialty Coffee

Specialty coffee, coined by Erna Knutsen in 1974, refers to a coffee that receives a quality grading score of 80 percent or higher. While “premium” or “gourmet” seem like they’re synonymous with “specialty,” they simply are marketing terms with no defined standards. Specialty coffees are grown in specific and ideal micro-climates, and have distinctive and unique flavor profiles, with little to no defects.

Third-Wave Coffee

We’re currently in the third wave of coffee. The first wave of American coffee put pre-ground, vacuum-sealed cans in kitchens across America. The second wave started with the late ‘60s introduction of Peet’s coffee (by Alfred Peet) through the proliferation of Starbucks. The third wave of coffee focuses on origin transparency, nuanced flavors, and artisan roasting. The term “third wave” is synonymous with specialty coffee.

What exactly does TDS tell us?

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