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1475 questions
8
votes
1 answer
Do I need higher pressure to create a ristretto?
I want to make a ristretto. Besides grinding my coffee finer, do I need to increase the pressure of the steam, or should I leave it the same?
fredley
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8
votes
1 answer
Are coffee 'vaults' like Friis really effective?
Some days ago I stumbled upon with this coffee jar: Friis coffee vault.
Are products like this, with an special valve, really useful to preserve the freshness of ground or whole bean coffee?
Nicolás
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8
votes
1 answer
What is essential for a proper tamp?
There are competing theories as to what you should do when tamping grounds in a portafilter. Some of these include:
30 lbs. of pressure, 90* angle
Knocking the side of the portafilter with the tamper
Rotating the tamper while pressing down
The…
stevvve
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8
votes
2 answers
Can I use an espresso blend with an aeropress?
I've heard that for a quality cup of aeropress coffee, one should be only using single origin coffees. I was wondering what the advantage of using single origin coffees was over espresso blends when brewing with an aeropress.
Stanimiroff
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8
votes
1 answer
Does pre-heating a puck on the group head produce more crema?
In my never-ending quest to get just a little more crema out of every shot, I've been experimenting with some advice I received from a barista - allow the puck to warm a bit in the porta filter on the group head prior to pre-infusing and pulling.
I…
user101
8
votes
1 answer
What are the differences between Jacobs Krönung and Jacobs Cronat Gold?
Jacobs got two major brands:
vs.
As far as I can tell, they are both instant freeze dry coffee going through the same process.
However, Cronat Gold is (at least in my country) 30%-50% cheaper than Krönung. The taste is also very…
Shadow Wizard Love Zelda
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8
votes
2 answers
How do I know how hard to tamp my coffee?
For someone without an expensive machine that can regulate the pressure when tamping, how can I know how hard to tamp, and if I'm tamping too hard?
I make espresso with a counter-top machine, and I tamp with a hand-held tamper like this:
Should I…
fredley
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8
votes
1 answer
How do I judge the quality of 'green' beans?
I'll have a chance to visit some coffee farms in the coming months, at which time I'll be able to purchase small amounts of 'green' Arabica beans. The only experience I have with purchasing these types of beans in the past has been online, and I'm…
user101
7
votes
1 answer
Troubleshooting Moka coffee grind size vs sediments
I recently received as a gift a pack of pre-ground coffee that was supposed to be incredible, but I just can't get it to work. I'm still getting used to my Moka pot, so its normal that I don't get a new coffee right in the first try, but this one is…
villasv
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7
votes
1 answer
When to use stirring to increase extraction?
I often find that some methods of brewing for a particular implement differ on whether or not to stir the grounds at some point in the process.
I understand that stirring while brewing should increase the extraction, but when and why would I use…
BrettFolkins
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7
votes
1 answer
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 coffee at around 160C where Maillard reaction and…
Joshua Tan
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7
votes
3 answers
Roast vs Body vs Acidity
Coffee flavor is often described in terms of:
Roast darkness (light to dark)
Body (medium to heavy)
Acidity (smooth to bright)
I have a vague understanding of some of these, but am unclear especially on body. Could someone explain these a bit and…
caleb
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7
votes
3 answers
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 temperature isn't a factor because, according to this…
Geremia
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7
votes
1 answer
How much does caffeine concentration in a cup of coffee decrease as a function of time (roughly)?
For example, if I let a cup of coffee sit for 1-2 hours, would the amount of caffeine I get mostly be the same? Or does it decrease?
Inertial Ignorance
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7
votes
4 answers
What's the minimum recommended age for drinking a coffee?
Is there any minimum recommended age for drinking a coffee?
In example for ground or instant (in case there is any difference)? I would assume there are no limits for a decaf coffee?
kenorb
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