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.
60 questions
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When do you know coffee beans are over roasted or burnt?
When coffee beans or ground coffee smells bitter is this always a sign that they are over roasted / burnt?
When I prepare coffee with these beans in French press it tastes bitter - the residual after ...
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What is the most basic everyday tool for coffee roasting?
If someone were to try to roast their own beans (in small batches) for the first time, what are the everyday/common household tools that works for this and how did you do it?
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What are the main pros and cons of the GeneCafe coffee roaster?
Having never roasted coffee, I would like to start roasting coffee at home (I'm UK-based). Due to time, and other constraints, I am looking for a solution that requires as little human intervention as ...
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Shiny vs opaque looking beans
I noticed that most commercial beans are shiny/oily on the outside:
While the beans I normally use on my Espressos (blend of 80% Brazil Santos + 20% Colombia) are dull/opaque:
Being a curious mind I ...
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Reroasting coffee beans after a couple of years - is it worth it?
I have some old, roasted coffee beans that have been stored in (mostly) airtight, opaque containers. The coffee beans are of reputable brands and are 2-6 years old, depending on the bag. They do not ...
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Gifting coffee beans, how to put effort into them and make their taste interesting
I am an amateur when it comes to coffee. My dad drinks a lot of coffee and enjoys preparing his coffee.
I have bought him a coffee grinder for his birthday (he usually just buys ground coffee). I have ...
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Slow Roasting Coffee Beans
Conventional Coffee bean roasts at around 200-240C at around 11-19mins to ensure Maillard reaction in the beans to create the familiar taste of coffee we all know today.
Could we instead roast the ...
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Is it possible to grind then roast?
Is it possible to grind green coffee beans, then roast the grinds, and make a good cup of coffee with the result? Are there reasons why doing so would be impossible or impractical or would necessarily ...
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What is the process for roasting and preparing chicory for coffee?
It seems to me that Community Coffee is essentially the standard for chicory coffee, both blended and just straight brewed chicory. What are the recipes, steps and ratios for roasting, preparing and ...
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Caffeine content of different brewing methods
For a given type of bean, do different brewing processes and temperatures (drip, French press, Mocha, espresso, cold brew, etc.) produce coffee with different caffeine content?
It would seem ...
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Is it possible to further roast instant coffee granules?
Can I take standard roasted instant coffee granules and further roast them in the oven?
Is this doable, or even advisable?
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Petroncini roaster issue
I have a petroncini raoster, semi-automatic
It's really good, but I whenever I fase an issue, I find really hard to understand -and fix- it.
I have been searching for a while now, for an operation ...
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Coffee Roasting Yields
I am trying to understand yield control in coffee roasting. In other areas of the food industry I work in, controlling yield is crucial to commercial success eg input less moisture loss + finished ...
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What are the good industrial roasters and grinders ?
I would like to know the recommended brands/models for industrial roasters and grinders (targeting 6 Ton per month)
I already know Toper roaster 10 K (it has an economic price about 15k $)
and Toper ...
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What is the best laptop to buy to run latest version of Cropster? [closed]
I’m about to purchase a new laptop for my roasting business and I would like to purchase the one on which Cropster runs best.
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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 ...
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How to tell if coffee beans are burnt?
I bought a bag of whole bean "Medium Dark" coffee from a café which recently started roasting its own beans. To my taste it is awful, however am unsure if the coffee is burnt or just not to my taste. ...
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Is dark roast stronger than light roast?
Dark roast coffee is roasted longer and at higher temperatures than light roast.
What is the difference in taste?
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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 ...
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"Speed Roasting" from Coffee Tonya: Is it just as good?
If any of you are familiar with the local coffee chain in Yokohama Japan, called Coffee Tonya, they have this speed roaster that roasts the beans you choose from their great selection of beans from ...
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Replace gear in Whirly-Pop with metal
I was roasting coffee using a Whirly Pop manual crank popcorn popper when one of the cheap plastic gears broke (luckily, I have 2 poppers).
Does anyone know where to get metal gears that could be ...
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Is it possible to make instant coffee of varying roasts?
I've never seen instant coffees being sold consisting of varying roasts (i.e. light/mild, medium, dark etc.) does such a thing exist? Or is there a reason why they haven't been tried?
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How should I distribute coffee from a small roaster?
I am about to start a coffee roasting business somewhere in the States. For now the game plan is to sell online. What are the most feasible strategies to ship small batches (14 oz)? Is that a good ...
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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 (...
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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 ...
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Taste of coffee that has not rested long enough
There is a lot of speculation about how long to allow coffee to rest after roasting prior to cupping, see this post and this post, and it has been discussed at length at home barista and other places ...
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How does humidity affect roasting?
How does the humidity affect the length of time required to reach a good light roast in a gas fired roaster.
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Where to measure ET on drum roaster
I am considering upgrading my home roasting setup to a gas Kaldi Wide. Part of what is so appealing is that this roaster is so bare bones and will be easy to modify to try different things.
I am ...
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How to judge time between cracks when roasting
I just roasted beans at home for the first time and have a question about the expected timing between cracks. I roasted 1 cup of beans in a Crate and Barrel stovetop popcorn popper on the side burner ...
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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 ...
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Roasting suggestion for Behmor 1600+ for Rwandan beans
My Behmor manual suggests profiles 1 and 2 for hard beans, 3 and 4 for soft low grown beans, and 5 for Island beans, city/city+. I've been roasting Rwandan beans on 3 and it's the best, but a little ...
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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 ...
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What's the recommended way to roast coffee beans at home? [duplicate]
There are couple of different methods to roast beans at home. Namely;
Using a specific home roaster
Using a pan
Using a hair dryer
Using a (sometimes modified) corn popper
are alternatives I have ...
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What was the cause for the current overwhelming popularity in the brighter, more acidic coffees?
Almost every coffee shop I go to serves up quite acidic and bright coffees. It seems that this is where modern coffee is and is not necessarily a bizarre phenomenon in itself but in particular the ...
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How to methodically pick out coffee nuances
I have been roasting coffee for years now at home. I definitely can pick out overall coffee differences (body, acidity, astringency, fruited, etc.) but when I read ratings and notes from my provider (...
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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 ...
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Nutrition information of roasting coffee in butter oil
I understand that some Asian coffees, like those from Vietnam and Cambodia, are roasted in butter oil. Does anybody know how much of the saturated fat and cholesterol in the butter is absorbed by the ...
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Can I reduce harmful terpenes?
There are reports that terpenes in coffee made without a paper filter raise cholesterol and risk of atherosclerosis / heart disease. (See Coffee and Cholesterol and Warning: Going to the Coffee Shop ...
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What coffee bean and roast are appropriate with soy milk?
Soy milk tastes quite different from cow milk. Yet coffee chains seem to make their milk-based drinks from the same coffee pot. The pot is most often made of dark-roast blends "from the house", and it ...
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Is it possible to roast coffee in an industrial glass kiln?
Could you roast coffee in an industrial glass kiln and it be drinkable?
A strange question and purely hypothetical. This came about with a discussion with one of my friends who is a glass maker at ...
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Why does coffee lose caffeine as it is roasted?
I have heard that coffee actually loses caffeine as you roast it, which means darker blends have less caffeine. Why is this?
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What is the Roasterie's city of fountains blend?
I eat roasted coffee beans on occasion, and usually all taste about the same. But I have noticed that beans from the Roasterie's City of Fountains blend have a rather burnt flavor. I turns out the ...
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Why do some grounds float and others sink when brewing by pour over
When brewing by the pour over method (in my case with a Chemex) I've noticed that some ground beans will float when I fill the filter with hot water, and other beans will not float. It's consistent ...
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Roasting my coffee beans
I just read online that some people roast their coffee bean before they grind the bean, to adjust the flavor. This sounds really interesting, and I would like to try. I would like to do this properly, ...
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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 ...
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What is white coffee?
What is white coffee?
Does "white coffee" refer to the roast level of the beans, or additives to the beverage, or is it some other type of coffee bean, or a different beverage completely?
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What is Breakfast/Morning blend?
What features does a breakfast or a morning blend have that other roasts or varieties don't have?
Is it always the similar or does it vary by distributor?
Is there any difference between breakfast ...
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Quality of ground coffee
Recently I've had some amazingly bad coffee in local cafes, and this week I had the same experience with some ground coffee I bought. I used a french press for that. Watery, dark colour, bitter and ...
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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 ...
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How long can I store roasted coffee beans?
How long do they retain their qualities? In the coffee store near my home the seller told me that their coffee beans are stored for 1-3 months in their shop. But after purchase I'm also storing them ...