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All coffee starts with the Coffea plant[^], and the processing that is given to it.
First it is planted, then four years later it can be harvested, then pulp is removed*, fermented, dried, milled, roasted, ground, and finally brewed.
Regular is made from the beans of the Coffea plant.
Decaf is made from the soil in which the plant grows.
* this is normally via the wet or dry method, but the alimentary canal of small cats can be used instead.
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Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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Decaff replaces the heartburn-inducing caffeine with other heartburn-inducing chemicals.
It's a neat trick!
Whenever you find yourself on the side of the majority, it is time to pause and reflect. - Mark Twain
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OriginalGriff wrote: but the alimentary canal of small cats can be used instead
although it is called "cat-coffee" they are not cats. They actually look like rats
Quote: Kopi luwak (Indonesian pronunciation: [ˈkopi ˈlu.aʔ]), or civet coffee, is coffee that includes partially digested coffee cherries, eaten by the Asian palm civet (Paradoxurus hermaphroditus)
And I must say... it was damned good coffee. But I don't feel paying the price again.
I was in Sumatra and bought it direct in the source (and was still elephanting expensive)
M.D.V. 
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modified 9-May-19 6:54am.
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It was the Executive Summary: accuracy is not important.
It's supposed to be very good - but I've not tried it.
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Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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Wich only proves that you can get anything down with just a squirt of Maunder Catchup.
I have lived with several Zen masters - all of them were cats.
His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.
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OriginalGriff wrote: It's supposed to be very good
It is (at least in my opinion), but the relation quality-price is not balanced.
I just checked... in Munich it is sold at 380€ / Kg
M.D.V.
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Help me to understand what I'm saying, and I'll explain it better to you
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Nelek wrote: They actually look like rats
hmmm, possums maybe.
almost tried it, waiting in Jakarta airport with about a million rupiah that I no longer needed (about US$20 at the time) and saw Kofi Luwak for that exact price, almost,
but then I found a store that sold Nongshim Cup noodles for about RP 100,000 (free hot water). Seeing as this trip failed to talk my way into the business class lounge and was a bit peckish decided on the noodles instead of the cat sh*t coffee.
but they do say it's good, and at $20 (small but not tiny cup) actually not such a bad price
- the next time I was there couple of weeks later the price had doubled to 2.5 million. (think it was an intro offer)
that was 5 years back, so far never been back that way since.
BTW: if you're wondering: yes, Jakarta airport sucks. pretty sure bet it hasn't improved in the last 5 years.
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Not 100% sure but I think I paid 60€ for 200 or 250 gr coffee. (8 years ago)
In Munich there is a couple of places who have it, at 20 or 25€ an espresso.
Lopatir wrote: BTW: if you're wondering: yes, Jakarta airport sucks. pretty sure bet it hasn't improved in the last 5 years.
I know... I was there too (and in economy, no lounge  )
Edit:
I just checked... Munich price: 380€ / Kg 
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
modified 10-May-19 1:26am.
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Decaf is what you get when decow delivers.
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I had to read that slowly, and it sounded like "come for da bul" 
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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OriginalGriff wrote: Decaf is made from the soil in which the plant grows.
I think you're being generous.
"Never attribute to malice that which can be explained by stupidity."
- Hanlon's Razor
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I assume he meant night soil[^]. 
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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OriginalGriff wrote: Decaf is made from the soil in which the plant grows.
and we all know what farmers put in the soil to kick it up a notch; goes without saying. 
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I always found the origins of decaf[^] amusing.
My guess is it actually went something along the lines of this:- Merchant thinks his expensive cargo of coffee was ruined upon discovering it soaking in cold sea water upon delivery (who hasn't had a package left out in the rain by the delivery person?)
- Next he wonders if some of the loss can be recouped by somehow passing it off the unwashed masses (Like any good business owner, how to turn a loss into a gain?)
- Has one of his "co-workers" (employees) brew a pot to see how much they will need to mask the taste but realizes it doesn't taste THAT bad compared to actual coffee
- Merchant dupes the public by selling them pre-used defective coffee beans
It would be like going to an auto dealer and letting yourself get talked into buying a brand new car with only one previous owner and no engine. 
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I don't even drink the stuff and I wonder WHY anyone would drink coffee with no caffeine.
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All coffee is the Devil's diarrhea!
=========================================================
I'm an optoholic - my glass is always half full of vodka.
=========================================================
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Good coffee is:
As black as sin
Hotter than Hell
Sweeter than love
So you got 2 out of 3 right... 
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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It's very similar to smelling the roses while wearing gas mask
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I already knew that the "%" (Modulo) operator is translated in a lot of instructions more than one would think at first glance and hence is a bit slower, but as I am trying to scratch every microsecond I can in my project...
I have just made a simple test:
50000 iterations and increasing a variable by one in each match
Loop 1: using i % 3 == 0 and i % 50 == 0
Loop 2: the same but using two helper counters instead. if count3 == 3 and count50 == 50
almost 300% performance difference 
I didn't expect that much.
M.D.V. 
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Help me to understand what I'm saying, and I'll explain it better to you
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Doesn't surprise me that much, it is a division operation after all!
See DIV for 8086 based machines, which provides the remainder - it's an 80-90 cycle instruction, compared to 3 for an ADD or CMP.
http://www.oocities.org/mc_introtocomputers/Instruction_Timing.PDF[^]
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Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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OriginalGriff wrote: it's an 80-90 cycle instruction, compared to 3 for an ADD or CMP
Wow!! I knew it was more, but I didn't know it was 80-90. Amazing.
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What's even better is that it still is, in some cases (64bit division with a non-zero upper half of the 128bit dividend, so a pretty rare case, but it exists).
On the other hand, the latency of addition has been 1 since approximately forever, and with 4 of them in the same cycle. So the chasm between addition and division has widened!
(rumour has it that Ice Lake will feature faster division .. but also faster addition, single-cycle 3-input addition and add-add macro-fusion, so we'll have to see which way that goes)
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% should take the same time as /
The CPU instruction DIV does an integer divide and modulus at the same time.
I am surprised that the divide is only 300% slower, but I am an old fart that coded a divide method on the old 6502 (which does not have a DIV instruction.)
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Depends on how you coded Divide! I have had to play that game with Z80's so many times...
Sent from my Amstrad PC 1640
Never throw anything away, Griff
Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...
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