Protocol for measuring percentage of coffee fines?

Protocol for measuring percentage of coffee fines?

Understanding the Process: Carbonic Maceration

Continuing our series on coffee processing, we learn about carbonic maceration—a unique, newer processing method. BY TANYA NANETTISENIOR ONLINE CORRESPONDENT Photos courtesy of Cafe Imports Editor’s note: Check out more entries in our “Understanding the Process“ series here. The rise of the specialty-coffee scene has helped many people understand that talking about coffee as something […]


New AFCA Director Gilbert Gatali on the 20th African Fine Coffees Conference

As the African Fine Coffees Association (AFCA) prepares for the 20th iteration of its flagship event, the African Fine Coffees Conference and Exhibition, the group is operating under new executive…


4 Cool Cafés to Try Out in Kuala Lumpur

The Malaysian capital is often visited in a hurry, but visitors who take the time to explore will discover a welcoming city, thanks in part to its friendly specialty cafés. BY TANYA NANETTI SENIOR ONLINE CORRESPONDENT Photos by Tanya Nanetti Kuala Lumpur, the capital of Malaysia, is often a stopover on vacations, quickly left behind […]


Florencia y Fortunata: A Café Empowering Women in Peru

The Cusco café, founded by Carolina Peralta Minaya, sells coffee from women producers and features women demonstrating their skills behind the bar. BY JORDAN BUCHANANBARISTA MAGAZINE ONLINE Photos courtesy of Carolina Peralta Minaya Traceability, sustainability, and conscientiousness are key values pervading the specialty-coffee trade. For many consumers and traders, these values inform their decision to […]

Protocol for measuring percentage of coffee fines?

Weekly Coffee News: EUDR and Africa + More Celebrity Coffee

Welcome to DCN’s Weekly Coffee News. Keep up with all the latest coffee industry stories and career opportunities by subscribing to DCN’s newsletter. Tell our editors about your news here. Report: Small-Scale Farmers in…


Congrats to the Top-Ranking Qualifiers at U.S. CoffeeChamps Denver

Dozens of coffee professionals competed at qualifiers this weekend in Colorado for coveted spots at the U.S. Coffee Championships next month. BY J. MARIE CARLANBARISTA MAGAZINE ONLINE Cover photo by J. Marie Carlan For competitive coffee professionals in the USA, the U.S. Coffee Championships are the place to be. Over the weekend, the second USCC […]


Brewing at Home and on the Road With Diego Campos

We talk to the first Colombian World Barista Champion and Diamante Coffee Farm founder Diego Campos about his brewing habits. BY TANYA NANETTISENIOR ONLINE CORRESPONDENT Photos courtesy of Diego Campos The focal point of a coffee worker’s professional life is, obviously, coffee. Whether for a customer, to check a specific production batch, or to verify the […]


Book Review: From Nerd to Pro, by Patrik Rolf

From Nerd to Pro: A Coffee Journey is an autobiography by roaster, café operator, and coffee competitor Patrik Rolf sharing his coffee journey. BY TANYA NANETTI SENIOR ONLINE CORRESPONDENT Featured photo by Tanya Nanetti I’ve read plenty of books on coffee over the years: manuals on how to brew great coffee at home, books on […]

Protocol for measuring percentage of coffee fines?

Conflict in the Red Sea: Why coffee roasters need to prepare for shipping delays

Like many other industries, conditions in the coffee supply chain can change quickly, and in turn, have a huge impact on all actors and stakeholders. Price volatility is one of the more pertinent – which is influenced by many factors. These include fluctuations in supply and demand, extreme or unexpected weather events, global economic downturn, […]


3 Elements Coffee: Supporting Veterans, One Cup at a Time  

The Australian roasting company helps to create opportunities for veteran communities.  BY VASILEIA FANARIOTISENIOR ONLINE CORRESPONDENT Photos courtesy of 3 Elements Coffee  Brisbane, Australia-based 3 Elements Coffee, founded by Navy veteran Terry McNally in 2016, has a mission to support the transition of ex-military personnel into the commercial workspace. To help achieve their goal and raise […]


Exploring the Potential of Drones in Coffee Production 

New drone technology has the potential to revolutionize coffee farming from the air. BY VASILEIA FANARIOTISENIOR ONLINE CORRESPONDENT Cover photo by David Henrichs via Unsplash In an ever-evolving technological landscape, coffee producers have begun turning to drones in an attempt to increase efficiency and operations. These unmanned aerial vehicles (UAVs) offer a wide range of […]


Lvl Up Coffee Hits High Scores In Normal, Illinois

Specialty coffee in the central Illinois town of Normal has reached a new stage of quality with the opening of Lvl Up Coffee Bar. Brought to life by coffee roaster…

Protocol for measuring percentage of coffee fines?

Protocol for measuring percentage of coffee fines?

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...

Protocol for measuring percentage of coffee fines?

I'd like to compare the level of fines between my grinders and am wondering how to normalize grind level between them. Would the following protocol be accurate/useful enough?

  1. Dial in a shot of espresso so that each grinder produces the same shot time with the same amount of coffee (e.g. 30 sec, 10 gram in, 20 gram out).
  2. Grind the same amount of coffee at this grind level and transfer into a 250 micron sieve. Shake for a minute and measure the weight.
  3. Attach a battery-powered blower and a custom cap to the sieve (see comment below) in order to apply air pressure to blow out more fines. Measure the weight.

I tried this with a friend's Kingrinder K4, grind level set to 46 clicks. Here are the results:

Slowly cranking (about 80 RPM)

  • Initial ground coffee weight: 10.13 gram (includes RDT)
  • After 1 minute of shaking: 9.20 gram
  • After blower: 8.33 gram

Using an electric screwdriver (a few hundred RPMs)

  • Initial ground coffee weight: 10.08 gram (includes RDT)
  • After 1 minute of shaking: 7.86 gram
  • After blower: 6.51 gram

Do these results make sense? Would they be comparable to another grinder adjusted to produce the aforementioned 30 sec shot?

submitted by /u/blackmalt
[link] [comments]

Protocol for measuring percentage of coffee fines?

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.

Protocol for measuring percentage of coffee fines?

Shopping cart0
There are no products in the cart!
Continue shopping
0