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Questions tagged [roasting]

Questions having to do with the roasting of coffee beans starting from green coffee beans to roasted beans ready to grind. This tag may also have to do with the heat profiles of roasting beans or the chemical changes taking place during this process.

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37
votes
4answers
33k views

Why is it not recommended to drink coffee immediately after it's roasted?

The rule of thumb is that you first drink coffee approximately 3 days after it is roasted, but what is the exact reason for this?
1
vote
2answers
311 views

Understanding Coffee Bean names as they relate to roast

So for example, in my local Fairway Market, I see barrels of coffee beans labeled such as "Ethiopian Harrar", "Costa Rica Tarrazu", "Ethiopia Yirgacheffe" etc. These names literally refer to ...
16
votes
3answers
906 views

What type of roast has the lowest caffeine content?

I'm aiming to reduce my caffeine intake, but don't want to drop coffee altogether. What roasts / beans release the least amount of caffeine into my body when drank?
19
votes
6answers
414 views

How do I get started in roasting my own beans at home?

I'd like to experiment with roasting my own beans at home. I'd like to keep the equipment requirements as basic as possible. No fancy gizmos or machines. I have a gas stove.
2
votes
1answer
92 views

What are the basics of creating an espresso blend?

Having roasted almost exclusively single origins, tackling blends seems somewhat daunting. What are the basic elements of an espresso blend that make it particularly good for the espresso ...
16
votes
7answers
4k views

Home Roasting with Fresh Roast SR500

I've just purchased a Fresh Roast SR500 home roaster. I have no experience roasting coffee so I'm looking for some basic principles to guide my efforts. After two batches so far, the first, done ...
8
votes
5answers
3k views

What are the flavor characteristics of under-roasted coffee?

As a frequent coffee drinker, I can tell when the coffee beans have been over-roasted; the coffee is bitter. What can I tell when the beans have been under-roasted? What does under-roasted coffee ...
4
votes
2answers
7k views

How much weight reduction occurs after roasting coffee beans?

Does the roasting process lead to weight reduction? If so, what are determining factors? type of coffee? type of roast(dark, medium etc) ? If you have X lbs of unroasted coffee beans, how much (...
12
votes
2answers
565 views

Why do most coffee shops use such dark roast?

I've noticed that most (non-specialty) places that sell coffee tend to have very dark roasts. This includes Starbucks, any Fast Food restaurant, most nicer restaurants, and hotel coffee. I can't ...
11
votes
2answers
2k views

Reduce power of popcorn popper for roasting coffee

I've been roasting coffee for a couple of years now, and I've always used a popcorn popper. I'm interested in taking things a bit more seriously and would like to be a bit more meticulous when it ...
11
votes
2answers
827 views

Home roasting and ventilation

I have been home roasting with a Gene Cafe since early this last summer. I chose the Gene Cafe specifically because it appeared to be designed for attachment to a permanent vent solution. However, I'...
6
votes
1answer
208 views

Roast Profile vs Rest Time, any connection?

TL;DR: Is there any science or data to support coffee that has undergone longer roast cycles needing less rest/degas time? For some time, I have been doing my own roasting by cranking the machine to ...
4
votes
3answers
2k views

How long does it take coffee beans to degas?

A google search brings up a great article by Hannah from Fellow Products called "Understanding Degassing: Is Fresh Best?," in which she claims: Degassing varies depending on the type of coffee and ...
2
votes
1answer
1k views

What are the common Ethiopia Sidamo roast suggestions?

I usually roast Brazil and Colombia beans, and I must say I have already found the profile I've been wanting in those beans, like the chocolaty nutty, the right balance of acidity and all. It happens ...