fredley
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How can I figure out how much caffeine is in my cup?
19 votes

Estimation is all well and good, but if you really want to know exactly how much caffeine is in your cup, you're going to have to measure it! Basic Mode You can get caffeine testing strips that you ...

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Coffee Bean Vs Espresso Bean
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18 votes

First of all, there is no difference in the beans themselves. They all come from either Robusta or Arabica plants. The roast doesn't vary either. You can use any kind of roast for your espresso, it's ...

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What is the background of brewing coffee with eggs?
14 votes

So I did a bit of research, and found a number of regional claims to 'egg coffee', including Swedish, Norwegian, Vietnamese and the American Mid-West. Of course I also found an article on Putting ...

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Are robusta and arabica the only bean varieties?
14 votes

Coffea Arabica and Coffea Canephora are the only two species of plants whose beans we use to make coffee - Arabica and Robusta respectively. However, you may have heard of other 'types' of coffee ...

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How to create these 3-D latte art?
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14 votes

This video here seems to have a good tutorial: http://www.youtube.com/watch?v=UTZNs2Mjxos The steps seem to be as follow: Make your latte as normal, heating/frothing the milk as you normally would -...

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Should I thoroughly clean the portafilter basket between shots?
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14 votes

There's a trade-off here. If you're working in a fast-paced coffee shop, you're likely to favour the faster option (knock out the coffee) over cleaning. Generally knocking out the coffee will get rid ...

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The pricier the better?
11 votes

Short answer: Yes - up to a point Long answer: Ignoring things like Kopi Luwak etc, there is a cost associated with growing, harvesting and transporting arabica beans in a timely manner, roasting ...

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Most moka pots don't work on my induction stove. How can I still use them?
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11 votes

Yes, you just need to get a pot that's made of the right stuff. Induction hobs only work with magnetic metals. If you can stick a magnet to your coffee pot, it will work. Traditional moka pots are ...

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How much caffeine is lost after 24 hours?
Accepted answer
10 votes

Caffeine does not break down (at any appreciable rate) when left alone in a drink. It requires the enzymes in your body to break it down, so when you take the drink out of the fridge, it'll be just as ...

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Why does water remain in the bottom chamber after brewing with a moka pot?
10 votes

This is deliberate. In a moka pot, the downward spout of the funnel does not reach all the way to the bottom of the pot. Brewing will stop once the level of water in the pot falls below the bottom of ...

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Is harvest time important for coffee quality?
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10 votes

Yes, it does, but it's much more complex than that :-) Harvest times vary greatly depending on the latitude, altitude and variety of beans being harvested. There is a very large table here which ...

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Coffee in Breaking Bad
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9 votes

All coffee preparations can be improved with an application of science! Simply by monitoring and carefully controlling conditions such as water temperature, brew-time, grind etc., you can improve the ...

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What is this tamper/filter thing that came with my moka pot for?
Accepted answer
8 votes

OK, I've worked this one out. This little thing is called a reducer. What you can do is put the reducer into the funnel. It should sit on the indentation half way down. You then put coffee on top of ...

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Does it make a difference whether the moka lid is open or not?
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8 votes

So what I've been taught is that you should keep the lid open while brewing. This is so you can watch the progress of the extraction, and cut the heat at the appropriate time. It gives you much more ...

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How should I make multiple batches quickly with a moka pot?
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8 votes

Here's what I do: Boil a kettle with as much water as you're going to need for everyone Fill the sink with cold water Make your pot of coffee as normal: using boiling water After you've made the ...

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Brewing 900 Cups of Coffee (In 24 Hours)?
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7 votes

Your problem depends more on the shape of the data than the raw quantities. 900 cups in 24 hours is one cup every 40 seconds or so, which isn't so bad, however I doubt that's the distribution of ...

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Are coffee 'vaults' like Friis really effective?
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7 votes

So there are a fair few, well, questionable claims on that page, and some downright contradictions: One Year of Friis Freshness Valves included, to vent freshness damaging CO2 gases CO2 gasses are ...

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The one-way valve, to squeeze or not to squeeze?
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7 votes

It doesn't actually matter! The valve on the bag is there to let gas out without letting gas in. The reason for this is that freshly roasted beans will continue to give off a bit of CO2 for a little ...

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Does aeropress coffee change flavour after several hours?
6 votes

All coffee changes taste over time - it is full of relatively fragile organic compounds that will change over time. Even in a vacuum flask (without exposure to light), the coffee will keep ...

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How to order cappuccino without whipped cream in France?
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6 votes

You probably just hit upon a place that simply didn't know what a cappuccino was, or lacked the facilities to prepare one. French coffee culture is a little different from Italian, but usually a ...

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Is it possible to grow plants in used coffee ground so that they get coffee flavor?
6 votes

Although the way plants digest food is very different to humans, the overall principle is the same: nutrients go in, and are completely broken down into very basic building blocks (amino acids, simple ...

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What is the purpose of the crimp on a moka funnel?
Accepted answer
6 votes

The crimp is there to support the reducer! The reducer slots into the funnel, and sits on the ridge. You then put coffee on top of it, allowing you to use less coffee in larger pots.

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Doppio vs. Short Black: What's The Difference?
Accepted answer
5 votes

As far as I know, a short black is a single espresso, as in it's literally just another word for a single espresso. A short black is a single 30ml shot, and a doppio is two, 60ml. Nothing added to ...

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What is the difference between the terms percolation and brewing in English?
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5 votes

Brewing is a part of every coffee preparation method: it's the time when the water (or steam) is in contact with the grounds. It is a generic term. Percolation however, would only be used when making ...

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How do I make an exceptional cup of coffee with an aeropress?
5 votes

The winner of the 2014 World Aeropress Championship - Shuichi Sasaki - used the following recipe: 16.5g coffee, 78℃, 250cc soft mineral water, EK43 grind at 9.5 Rinse normal paper filter, in standard ...

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french press technology stalled?
4 votes

What do you mean by improve? French press is one of the most popular brewing methods in the world, and rightly so: it's dead easy to operate and produces a great cup of coffee. The mechanism is very ...

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Differences between Chemex & V60
4 votes

So there are two main differences between the Chemex and V60: The V60 has a much finer filter than the Chemex, so extraction is much faster through the V60 filter, and more oils/solids come through. ...

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Is it safe to use paper towel as a filter when brewing?
4 votes

So as far as I can tell, some kitchen towel can contain a variety of potentially nasty chemicals, including bleach. While it's only likely to be trace amounts, I'd avoid doing this except in an ...

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Does making Bali Coffee change the amount of caffeine compared to filter coffee?
Accepted answer
4 votes

The amount of caffeine in your cup will depend, as with any method, on the extraction time. It also depends on everything else, e.g. the grind, temperature of the water, but I can't find any ...

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Moka pot induction heater
4 votes

You can actually get all-in-one moka pots that plug directly into the mains, e.g.: http://www.amazon.com/Delonghi-EMK6-Alicia-Electric-Espresso/dp/B00009W5F0 I've used one similar to this before, ...

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