Lecture Description
Coffee grind size is the most impactful parameter in the hands of a barista to control the espresso extraction. The dial-in procedure involves changing the grind size and with this changing the particle size of the ground coffee to achieve an optimal extraction.
The presentation will explain fundamentals about what is happening to the coffee when grinding at different grind sizes and how this impacts espresso extraction. We will look at how coffee grind size can be characterized more in detail, not only by using a single grind size number.
In the main part of the presentation we will explore the findings of our recent study about the impact of ground coffee fines on the espresso extraction. We will look at why fines are so important, how they can be a characteristic of a grinder, what is their role in the espresso extraction and what are the sensory implications. The data and information provided will benefit better understanding of extraction, grinder qualities and flavour quality of espresso.
Date: Thursday, June 27, 2024
Time: 13:00 - 14:00
Location: Lecture Room 1
This lecture is free to attend with a World of Coffee entry badge. Register to attend World of Coffee Copenhagen here.
Lecturer / Presenter
Samo Smrke (he/him)
Scientific Associate, Zurich University of Applied Sciences
Samo Smrke is a scientific associate at the Zurich University of Applied Sciences (ZHAW) in the group of prof. Yeretzian. He is involved in research projects in collaboration with industry partners and in fundamental research on various topics of coffee chemistry and coffee science. He is leading a module of the Coffee Excellence continuing education course at ZHAW, and various other educational programs with partners of ZHAW. Samo is actively participating at coffee conferences, is one of the co-authors of the SCA Freshness Handbook and Water Handbook and has contributed to scientific papers and book chapters about coffee.