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The Impact of Roast Profile on a Coffee's Physical and Chemical Properties | Laudia Anokye Bempah
This session was presented at Roast Summit on February 22, 2024 in Portland, Oregon.
Presenting preliminary results from a massive study at the UC Davis Coffee Center, this talk investigates the impact of roast profiles inside a commercial drum roaster (a Probat P5). The session will focus on how the differences in roast profile affect the titratable acidity and color of the beans, and how the data collected will ultimately help inform a new "coffee roasting control chart."
Presenter: Laudia Anokye-Bempah is a Ph.D. student in the Biological Systems Engineering Program at the University of California Davis. Her research focuses on the kinetics of coffee roasting, with the ultimate goal of designing a “Coffee Roasting Control Chart” that will be used to produce the desired attributes in roasted coffee. Prior to her doctoral studies, Laudia received her MSc. in Biological Systems Engineering also from the University of California Davis, where she researched the use of desiccants for proper moisture preservation in green coffee during storage and transportation, and a BSc. in Food Process Engineering from the University of Ghana.
Переглядів: 535

Відео

Partnering With Your Green Coffee Suppliers | Shauna Alexander
Переглядів 1982 місяці тому
This session was presented at Roast Summit on February 22, 2024 in Portland, Oregon. Strong partnerships with your green coffee suppliers-importers, exporters and/or producers-are key to running a roasting business. This session will draw from Stumptown's 20 years of Direct Trade sourcing and roasting, and provide perspective on communicating with suppliers about your coffee needs and preferenc...
Electrochemical Assessment of Coffee Qualities | Christopher H. Hendon
Переглядів 3952 місяці тому
This session was presented at Roast Summit on February 22, 2024 in Portland, Oregon. This talk details the development of an electrochemical method to assess solvated coffee compounds using a three-electrode electrochemical method, performed using either commercial or home-made potentiostats. Dr. Hendon will demonstrate that there is a well-defined relationship between total dissolved solids (c...
Tasting the Standards: A Comprehensive View of Green Coffee Defects | Camila Khalifé
Переглядів 5832 місяці тому
This session was presented at Roast Summit on February 22, 2024 in Portland, Oregon. This session will review the current SCA standards for green coffee, take a look on how green coffee is sorted at origin before it is exported, and discuss the impact of defects on the cup, as well as the challenges producers face to meet the standards. The following day, a hands-on workshop will offer attendee...
Devil in the Details: The Small Stuff of Coffee Roasting | Rob Hoos
Переглядів 3,3 тис.2 місяці тому
This session was presented at Roast Summit on February 22, 2024 in Portland, Oregon. Coffee roasting is an incredibly complex and difficult craft. Understanding and controlling the myriad of small variables involved in coffee roasting can be just as important as getting the larger details correct. This session will focus on identifying variables worth paying attention to as a coffee roaster and...
Roast Summit 2024
Переглядів 3844 місяці тому
Set against the backdrop of beautiful Portland, Oregon, this two-day event was an unforgettable experience. On February 22-23, 2024, coffee professionals from around the world convened at two remarkable venues-the historic McMenamins Kennedy School and the innovative Buckman Coffee Factory-to discover the latest trends, insights and techniques in coffee roasting.
Interview With The Author: Anne Cooper on When Technology Fails
Переглядів 450Рік тому
Roast Magazine publisher Connie Blumhardt sits down with Anne Cooper, the author of "When Technology Fails: Strategies and Critical Skills for Coffee Roaster Operations" from the May/June 2023 issue. Read the article or listen an audio article version at www.roastmagazine.com
Interview With The Author: Ian Fretheim on The Cafe Imports Coffee Rose
Переглядів 483Рік тому
Roast Magazine publisher Connie Blumhardt sits down with Ian Fretheim, the author of "A New Tool for the Cupping Kit: The Cafe Imports Coffee Rose Offers a New Model for Sensory Evaluation" from the March/April 2023 issue. Read the article or listen an audio article version at www.roastmagazine.com
Batch Protocols and Other Tools to Manage Consistency | Scott Rao
Переглядів 4,1 тис.Рік тому
Session Description: In this session, Scott Rao will talk about between-batch protocol and other factors that affect roasting consistency, such as controlling green-coffee temperature, ambient roastery temperature, and day-to-day airflow levels. Scott coined the term between-batch protocol (BBP) to emphasize the importance of managing a roasting machine's thermal energy between batches. Scott w...
Current Green Coffee Grading vs Green Quality of Different Processes | Luz Stella Artajo Medina
Переглядів 939Рік тому
Session Description: This session will discuss current green coffee grading vs green quality of different processes, what are we lacking in the coffee industry in terms of green coffee quality and processes in the specialty coffee industry? (honey, naturals, extended fermentations, etc). Presenter: Dr. Luz Stella Artajo Medina holds a Bachelor's degree in Food Engineering from Universidad de Ca...
Understanding Quality: The SCA’s new Coffee Value Assessment System | Peter Giuliano
Переглядів 1,9 тис.Рік тому
Session Description: The specialty coffee industry is built upon the idea that coffee quality makes coffee more valuable to coffee farmers, roasters, retailers and consumers. But how do we measure quality, and therefore estimate value? Traditionally, the industry has relied on tools like the SCA Cupping protocol to assess value. How can cupping be improved, in light of advancements in sensory s...
Converting Green Coffee Data into Practical Insights in the Roaster | Chris Kornman
Переглядів 1,2 тис.Рік тому
Session Description: Learn how to use physical measurements and observations to improve the quality of your green coffee buying and roasting practices. Presenter: Chris Kornman is a seasoned coffee quality specialist, writer and researcher, and the director of education at The Crown: Royal Coffee Lab and Tasting Room in Oakland, California. He has extensive experience with coffee grading,roasti...
Roaster Maintenance: A Healthy Roaster is a Happy Roaster | Bill Kennedy
Переглядів 756Рік тому
Session Description: This live demonstration will help you maximize your machine’s potential with the proper care, cleaning and maintenance. Presenter: Bill Kennedy is the president and CEO of The San Franciscan Roaster Co.
Interview With the Author: Chris Kornman on Additive Fermentation in Coffee
Переглядів 392Рік тому
Roast Magazine publisher Connie Blumhardt sits down with Chris Kornman, the author of "Additive Fermentation: 'Infused' Coffee is Gaining Popularity-and Sparking Industry Debate" from the January/February 2023 issue. Read the article or listen an audio article version at www.roastmagazine.com.
Exploring the Roasting Curve: Part 2 | Nicki Amouri
Переглядів 10 тис.Рік тому
This session was presented at Roast Summit @ Coffee Fest on September 29, 2022 in Seattle. Thanks to event host San Franciscan Roaster Co. and video sponsor Pacific Foods.
Sample Roasting: A Philosophical and Pragmatic Approach | Rob Hoos
Переглядів 6 тис.Рік тому
Sample Roasting: A Philosophical and Pragmatic Approach | Rob Hoos
Post-Roast Resting Times and the Sensory Impact | Joey Stazzone
Переглядів 2,7 тис.Рік тому
Post-Roast Resting Times and the Sensory Impact | Joey Stazzone
Impacts of Drying Temperatures & Bean Moisture | Yimara Martinez Agudelo
Переглядів 975Рік тому
Impacts of Drying Temperatures & Bean Moisture | Yimara Martinez Agudelo
Approaches to Roasting Decaf Coffee | Stacey Lynden
Переглядів 836Рік тому
Approaches to Roasting Decaf Coffee | Stacey Lynden
Roaster of the Year Award
Переглядів 9362 роки тому
Roaster of the Year Award
Rate of Rise Live | Episode 8: Katherine Nolte Ferguson, Sucafina Specialty Coffee
Переглядів 5282 роки тому
Rate of Rise Live | Episode 8: Katherine Nolte Ferguson, Sucafina Specialty Coffee
Rate of Rise Live | Episode 9: Scott Rao, Author & Consultant
Переглядів 3,5 тис.2 роки тому
Rate of Rise Live | Episode 9: Scott Rao, Author & Consultant
Rate of Rise Live | Episode 10: Kevin Nealon, Huckleberry Roasters
Переглядів 5682 роки тому
Rate of Rise Live | Episode 10: Kevin Nealon, Huckleberry Roasters
Rate of Rise Live | Episode 4: Anne Cooper, Equilibrium Master Roasters
Переглядів 7272 роки тому
Rate of Rise Live | Episode 4: Anne Cooper, Equilibrium Master Roasters
Rate of Rise Live | Episode 5: Nicki Amouri, Caffè Amouri
Переглядів 5422 роки тому
Rate of Rise Live | Episode 5: Nicki Amouri, Caffè Amouri
Rate of Rise Live | Episode 6: Chris Kornman, Author of "Green Coffee"
Переглядів 2982 роки тому
Rate of Rise Live | Episode 6: Chris Kornman, Author of "Green Coffee"
Rate of Rise Live | Episode 7: Will Frith, Building Coffee, Vietnam
Переглядів 1892 роки тому
Rate of Rise Live | Episode 7: Will Frith, Building Coffee, Vietnam
Rate of Rise Live | Episode 1: Peter Giuliano, Specialty Coffee Association
Переглядів 6912 роки тому
Rate of Rise Live | Episode 1: Peter Giuliano, Specialty Coffee Association
Rate of Rise Live | Episode 3: Karl Wienhold, Author of "Cheap Coffee"
Переглядів 2332 роки тому
Rate of Rise Live | Episode 3: Karl Wienhold, Author of "Cheap Coffee"
Rate of Rise Live | Episode 2: Areli Barerra Groski, Little Waves Coffee Roasters
Переглядів 3402 роки тому
Rate of Rise Live | Episode 2: Areli Barerra Groski, Little Waves Coffee Roasters

КОМЕНТАРІ

  • @renatocipriani93
    @renatocipriani93 7 днів тому

    Amazing as aways. Thank you so much Rob

  • @shampllhyperx4477
    @shampllhyperx4477 Місяць тому

    Thanks for your work Appreciate

  • @floid33556
    @floid33556 2 місяці тому

    Sounds like this would be very informative if we could understand. Can you post a link to the study? Is it published?

  • @floid33556
    @floid33556 2 місяці тому

    Cannot understand at all. 😢

    • @floid33556
      @floid33556 2 місяці тому

      Sadly closed caption can’t understand either.

  • @cktse_jp
    @cktse_jp 2 місяці тому

    Thanks a lot for sharing your experience. This session is packed with so much practical information that it could easily fill a book!

  • @denislisionok8973
    @denislisionok8973 2 місяці тому

    Just starting out production roasting on a 20kg machine I'd like to thank you Rob for making my life just that tiny bit easier, you've confirmed a lot of my theories and introduced metrics that'll help me along the way. Striving for perfection has always been difficult, but it's because of resources like these we get to stand on the shoulders of giants.

  • @_ETA_E-T-A_
    @_ETA_E-T-A_ 2 місяці тому

    Thanks!

  • @minjoongkim1696
    @minjoongkim1696 2 місяці тому

    We need subtitle!

  • @shahromtaghizadegan
    @shahromtaghizadegan 3 місяці тому

    Yes!

  • @devenpatel3044
    @devenpatel3044 3 місяці тому

    Why is it that the person you want to hear the most has mic issues 😭. Is there any way to clean up the audio? -Great stuff btw thanks for sharing and doing all you all do!

    • @roastmagazine1970
      @roastmagazine1970 3 місяці тому

      Thank you for the feedback! Turning on the closed captions may help. We'll see what we can do to improve the audio.

  • @rookie_hero8682
    @rookie_hero8682 3 місяці тому

    Thank you so much, this is a great gift of knowledge!

  • @robertomuhammad35
    @robertomuhammad35 3 місяці тому

    Thanks for valuable information. How can i apply 4 min in maillard phase and keep momentum to maintain 3 or 4 minutes in development phase if i want reach beginning of second crack ( espresso roast ) i think it's not possible at least in my roaster . In the same time i have to apply Smooth declining in ROR !!

  • @isaachannigan920
    @isaachannigan920 4 місяці тому

    Sensory tastes are subjective because it depends on if you like that thing. Some people don't like citrus so a Kenya coffee might be unbearable and they would enjoy a Brazil more because its less acidic and more " flat" so thats why calibration is so important. I like the idea of using real items to describe tastes to others.

  • @baaraninkaa
    @baaraninkaa 4 місяці тому

    Are you going to upload any of the webinars this year 🥹?

  • @overthetopblues
    @overthetopblues 5 місяців тому

    Such great info! Thank you so much, Nicki! )

  • @qualityhillcoffee1802
    @qualityhillcoffee1802 6 місяців тому

    Thank You for all you do for our industry!

  • @jpbarista3253
    @jpbarista3253 6 місяців тому

    Awesome information thanks 🙏

  • @lexper7244
    @lexper7244 6 місяців тому

    I cant believe all this information is out here on UA-cam for free and its only 4 comments!!!! Thank you so much for putting this out here

  • @shahromtaghizadegan
    @shahromtaghizadegan 6 місяців тому

    Nice. Thank you.

  • @RoasterPilot
    @RoasterPilot 7 місяців тому

    07:55 Thank you Connie for asking this question. More than one semester and their new tool still not publish

  • @acac4348
    @acac4348 8 місяців тому

    How can you get to 415 degrees F with a peak ROR of 34??? Even if you keep that 34 ROR for 10.5 minutes it’s only 357 degrees F!!! Can you explain? What am I missing here? I guess an ROR curve would be helpful here.

    • @andrew7061
      @andrew7061 6 місяців тому

      Beans don't start out at 0 degrees F. The peak ROR happens at turning point, so if you look at the turning point temperature, that's the degree you start counting from! In her case it says 168 degrees. 415-168 = 247F / 34 = 7.26 minutes.

    • @AllGroundsCoffee
      @AllGroundsCoffee 6 місяців тому

      @@andrew7061 all these temp numbers are in Fahrenheit? How will it look like if converted to Celsius?

  • @rockfitclub
    @rockfitclub 9 місяців тому

    amazing

  • @rockfitclub
    @rockfitclub 9 місяців тому

    thank you

  • @sulimanayad
    @sulimanayad 10 місяців тому

    It’s very interesting that her ideas about extending the Maillard phase seem to be almost exactly the opposite of what Rob Hoos writes in his book.

  • @dzanek19
    @dzanek19 11 місяців тому

    Just search “Moizeti”

  • @shahromtaghizadegan
    @shahromtaghizadegan Рік тому

    Nice

  • @cappuccinogoodfinger
    @cappuccinogoodfinger Рік тому

    Question : By Maillard, does that mean after the Drying and before First Crack (before entering Development Time) or is it after Drying including First Crack & Development Time ?

    • @LaLiLuLeLo1991
      @LaLiLuLeLo1991 6 місяців тому

      Maillard is the middle (second) phase, after Drying and before first crack. It does not include the development phase which is it's own (third) phase.

  • @jeanfxjeanfx
    @jeanfxjeanfx Рік тому

    🎉🎉🎉🎉🎉🎉

  • @jeanfxjeanfx
    @jeanfxjeanfx Рік тому

    🎉🎉🎉Ann

  • @juanjo_film
    @juanjo_film Рік тому

    🙌

  • @surojmishra967
    @surojmishra967 Рік тому

    Thank you for sharing 🙏.

  • @knacks21
    @knacks21 Рік тому

    Thank you for the effort you put into this very rare discussed topic! I enjoyed the data analysis and your approach, many thanks to all coffee enthusiasts involved in the process! We need more niches topics like this covered !

  • @jwood8713
    @jwood8713 Рік тому

    This is tremendous. So pleased to have found this while I get to know my IR12! Thank you 🙏

  • @Mark-ue7pl
    @Mark-ue7pl Рік тому

    I love this dude!! This content needs smzeus!!

  • @triston574
    @triston574 Рік тому

    I believe the world of Decaf is going to really push coffee forward in the near future.

    • @suew4609
      @suew4609 Рік тому

      I hope so! When she says she tastes the decaf, what she's actually saying is it lacks the taste of caffeine!!

  • @nearbycoffee
    @nearbycoffee Рік тому

    39:39 This part what you want to hear on Typica & Gesha

  • @BarbaraAnnShort
    @BarbaraAnnShort Рік тому

    Can't find part 1

    • @sleep57
      @sleep57 Рік тому

      "Part 1" is likely referring to Nicki Amouri's presentation titled "Roast Summit 2022 | Session Three: Tasting the Roast Curve": ua-cam.com/video/Tx6pMpIbNPs/v-deo.html

  • @JCleggy
    @JCleggy Рік тому

    Regarding additive fermentation… it seems the wine industry has a lot more secrecy than the coffee industry does when it comes to processing methods. By taste alone, can anyone identify the so-called “adulterated” coffees created from additive fermentation? If not, then I can’t see why anyone would try to reject these coffees from grading/competition. Even the WATER ITSELF used in processing coffee contains microbes that influence fermentation. Adding strawberries to a tank doesn’t make the coffee taste like strawberries anyways. I’m not saying additive fermentation is the future of coffee, but the “purists” that try to block it are definitely the kinds of people who tuck their t-shirts into their underpants. Just sayin

  • @juanjo_film
    @juanjo_film Рік тому

    Good to see this talk! Happy 40 Chris

  • @askroller
    @askroller Рік тому

    Thanks for roasting SCA for 6 minutes straight ☺

  • @gregolgratis
    @gregolgratis Рік тому

    🔥

  • @katrinasamuels-garrison825

    👍

  • @JohnClulow
    @JohnClulow Рік тому

    I wonder if there might not be a way to accelerate the effects of time following roasting; e.g., storing in a partial vacuum and/or at elevated temperature; as a practical method of allowing projected estimates of longer term performance.

  • @Get2Jack
    @Get2Jack Рік тому

    Thanks ❤

  • @ps7365
    @ps7365 Рік тому

    Thanks for making this available.

  • @TheMuseCoffeeco
    @TheMuseCoffeeco Рік тому

    Anne is simply the best! Good people and wonderful teacher!

  •  2 роки тому

    Wow!!! This video is best than an advanced roasting class!!!! I'm amazed with all this information. It must have taken years and years of roasting to get all this information. I'm using a lot of it in our roasting in Brazil. Thanks a lot, Nicki, for sharing it with us! I took many notes, and watch it over and over.

  • @hamijoh
    @hamijoh 2 роки тому

    Sorry, I disagree that convection roast, light, dry, sharp, is what customers I have are looking for. I’ll sell three to one a roasty, oily, Vienna roast. I love berry bright light Ethiopian, but that’s not my fastest selling bean and profile.

  • @Chris-bm5qd
    @Chris-bm5qd 2 роки тому

    0:11 Here is a link to her full presentation: ua-cam.com/video/Tx6pMpIbNPs/v-deo.html Best lesson in developing a roast I have ever seen!

  • @Chris-bm5qd
    @Chris-bm5qd 2 роки тому

    Nicki, that was amazing. You shared years of experience, and it must have taken forever to prepare. I took a lot of notes, and I'm confident that if I applying you teachings, I will become such a better roaster. Thanks so much to you for putting this together and thanks to Roast Magazine posting. 21:50 Tasting done right 1:07:45 I'm color blind, and have been doing this for years. So as soon as I heard this, this concern I've had for years of how I mark my turning point just went away. If I ever get a pet turtle, I'm going to call it Nicki. : )