Nothing influences the taste and quality of your coffee more than the green coffee beans you choose. In this Q&A session on green coffee, Chris Kornman - one of the most experienced specialists in coffee sourcing and quality - answered various questions on green coffee to provide roasters with tipps and knowledge on how to improve their roasting by better chosing and treating the green coffees they buy.

Chris Kornman is also author of the book "Green Coffee", which is a must-read for anyone working with (green) coffee: https://roastrebels.com/en/roasting-accessories/books/green-coffee

Chapter: 

00:00 Introduction and who is Chris Kornman 

01:55 How to store green coffee beans 

03:17 Plastic bags / Grainpro / Ecotact 

04:04 How long can I store green coffee beans 

05:49 How to build a green coffee storage  

07:11 Is air conditioning needed in coffee storage 

09:12 How can I find a good coffee producer 

11:26 What to evaluate in green coffee samples 

13:39 At what stages to take samples in coffee trading 

18:22 Pre-shipment vs. arrival samples 

20:28 How to measure moisture content 

22:18 Green coffee evaluation with ultraviolet 

24:15 What to look for when buying coffee online 

28:31 What aspects do have the most influence on coffee taste 

30:46 Importance of processing methods 

31:51 Measuring water activity 

34:19 Measuring coffee density 

37:48 Roasting depending on density 

39:21 Coffee density and scorching / defects 

39:52 What defects to look after in green coffee beans 

43:06 Coffee quality standards 

43:54 Is colour sorter needed in a roastery 

46:30 How to roast new experimental processed coffees (anarobic, maceronic, yeast) 

49:34 What are current coffee trends

Link: Kaffelogic Nano 7e Sample roaster

Link: Green coffee beans for home roaster

Link: Book "Green Coffee"

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At Roast Rebels, we are dedicated to a single theme: Roasting coffee made easy. On the one hand we offer the most proven home roasters and high quality green coffees, on the other hand we want to support people who roast their coffee themselves with tips, knowledge, roasting profiles and tutorials to achieve good roasting results quickly.   You'll find lots of information and roasting profiles on our website, as well as here on the YouTube channel.   #homeroasting #coffeeroasting

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