Protocol for measuring percentage of coffee fines?

Protocol for measuring percentage of coffee fines?

The Color of Coffee Collective Symposium Returns for Its Second Year

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Design Details: Brewing Reinvented at ULA Café in Melbourne

Welcome to Design Details, an ongoing editorial feature in Daily Coffee News focused on individual examples of coffee shop architecture, interior design, packaging design or branding. If you are a coffee…


Torr Launches the Hive Cafe Countertop Coffee Concentrate System

Commercial cold coffee equipment company Torr Industries recently rolled out a countertop-friendly version of its signature Hive Brew cold coffee system, called the Hive Cafe. The northern California coffee company…


3 All-Women Coffee Roasting Companies that Are Changing the Game

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Protocol for measuring percentage of coffee fines?

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

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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 […]


Out Now: The February + March 2023 Issue

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Coffee News Recap, 2 Feb: Applications open for Australia’s Richest Barista 2024, De’Longhi reports 4.6% revenue increase after La Marzocco move & other stories

Every Friday, Perfect Daily Grind rounds up the top coffee industry news from the previous week. Here are this week’s coffee news stories. The word of the week is: expansion. Mon, 29 Jan AeroPress launches limited-edition Clear Pink brewer. The coffee brewer is made from the same Tritan material used in the standard Clear model. […]

Protocol for measuring percentage of coffee fines?

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….


The Caripe Variety: A Groundbreaking Milestone in Venezuelan Coffee Farming

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Know Your Sweeteners: Agave: Part One — Indigenous Use

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The Potential of Augmented Reality Technology for the Coffee Industry

Join us as we explore the applications and trends of “augmented reality“ in the world of coffee. BY VASILEIA FANARIOTISENIOR ONLINE CORRESPONDENT Featured photo courtesy of Pixabay In the ever-evolving landscape of technology, augmented reality (AR) has emerged as a transformative force, blurring the lines between the digital and physical worlds. As we step into […]

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?

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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?

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