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re: Does dark roast coffee offer more caffeine?

Posted on 4/15/21 at 10:12 am to
Posted by mule74
Watersound Beach
Member since Nov 2004
11291 posts
Posted on 4/15/21 at 10:12 am to
I’ve always heard opposite. Light roast actually has more.
Posted by Jor Jor The Dinosaur
Chicago, IL
Member since Nov 2014
6572 posts
Posted on 4/15/21 at 10:13 am to
I did a tour at Kauai Coffee a couple years ago, and they said that darker roasts have less caffeine because the roasting burns off more.

They suggested light/medium for a pick me up in the morning, and darker roasts later in the day.
Posted by McLaggen
Jackassistan
Member since Aug 2016
354 posts
Posted on 4/15/21 at 10:14 am to
Thanks for info. Makes more sense now.
Posted by High C
viewing the fall....
Member since Nov 2012
53755 posts
Posted on 4/15/21 at 10:15 am to
I grew up in a household where you would be struck about your head and body if you brought any coffee into the house other than Community Dark Roast. I now buy the Great Value brand Colombian. I can honestly tell no difference between caffeine content or taste, for that matter.

Walmart brand costs about half as much, though. I’m sorry, Paw.
Posted by Jcorye1
Tom Brady = GoAT
Member since Dec 2007
71356 posts
Posted on 4/15/21 at 10:15 am to
No, it actually has more oil. Blonde coffee has the most caffeine all things being equal.
Posted by The Spleen
Member since Dec 2010
38865 posts
Posted on 4/15/21 at 10:15 am to
I've also always heard that the difference isn't really perceptible to most people.
Posted by Pelican fan99
Lafayette, Louisiana
Member since Jun 2013
34685 posts
Posted on 4/15/21 at 10:16 am to
No idea on caffeine content but only queers drink light roast coffee
Posted by jaytothen
Member since Jan 2020
6404 posts
Posted on 4/15/21 at 10:16 am to
Lighter the roast the more caffeine generally
Posted by Jcorye1
Tom Brady = GoAT
Member since Dec 2007
71356 posts
Posted on 4/15/21 at 10:17 am to
quote:

I grew up in a household where you would be struck about your head and body if you brought any coffee into the house other than Community Dark Roast. I now buy the Great Value brand Colombian. I can honestly tell no difference between caffeine content or taste, for that matter.

Walmart brand costs about half as much, though. I’m sorry, Paw.


I'll be a snob here, but most of the packaged coffee like that is already around 3-6 months old so unless flavors are added will generally taste the same assuming same area of the world.
Posted by When in Rome
Telegraph Road
Member since Jan 2011
35539 posts
Posted on 4/15/21 at 10:18 am to
quote:

I've also always heard that the difference isn't really perceptible to most people.
This is what I've heard as well.

LINK

quote:

Let’s dispel the most common myth right off the bat: A dark-roasted bean contains more caffeine than a light-roasted bean due to its stronger flavor. Not true. Actually, the caffeine content in both is virtually the same. An opposing view held by many is that the darker the roast level, the lower a bean’s caffeine since much of it is lost or "burned off" during roasting. Yet caffeine changes very little during a roast. Any significant variation would require a roasting temperature above 600° F. Since temperatures rarely exceed 470° F, a bean’s caffeine content remains relatively static across all roast levels.
This post was edited on 4/15/21 at 10:21 am
Posted by High C
viewing the fall....
Member since Nov 2012
53755 posts
Posted on 4/15/21 at 10:20 am to
Yeah, I don’t care about the freshness of my coffee enough to do the work necessary to get the freshest or pay that premium price.

To each his own, though. Each person’s answer is the right answer for them.
Posted by crewdepoo
Hogwarts
Member since Jan 2015
9583 posts
Posted on 4/15/21 at 10:21 am to
CC medium roast has the most caffeine. I get between roast if I can find it, which is half medium, have dark.
Posted by dgnx6
Baton Rouge
Member since Feb 2006
68480 posts
Posted on 4/15/21 at 10:22 am to
It's less. And less acidic.

I only go dark. Doesn't upset my stomach.
Posted by hubertcumberdale
Member since Nov 2009
6505 posts
Posted on 4/15/21 at 10:26 am to
quote:

There’s a myth out there that darker roast coffee offers more caffeine but I’m starting to think other wise. Light roast supposedly offers the same, if not more, of a boost and tastes sweeter. The difference in roast just determines how bold or sweet it is. I always thought the roast determined how much caffeine. What is y’all’s experience?





quote:

One way to think about this question is: Do caffeine levels change inside the beans during roasting? On this, the science is clear: caffeine is very stable through the roasting process. You’d have to roast it past turning it into charcoal before caffeine would chemically change, beyond even the darkest of dark roasts you could find. Point is, even though the individual beans go through physical and chemical changes while it’s roasted, the amount of caffeine a bean starts with is generally the amount it ends up with. If you’re talking about individual beans, the caffeine level is the same whether it is light or dark roasted.




quote:

According to this research, dark roast does in fact yield more caffeine than light roast. This is consistently what Han found across experiments, and it makes sense, though not for the reasons one might think. A darker roasted coffee is less dense, so by the bean, it has lower mass than a light roasted coffee. All other things being equal, if you grind and weigh out a certain number of grams of coffee, there are more beans involved when using dark roast. It's no different than if we ate a pound of fresh grapes versus a pound of dried raisins—far more sugar is consumed in the dried, condensed raisin equation.


quote:

So it's not necessarily that “dark roast has more caffeine”—caffeine is stable across roasts—but rather, dark roast is less dense. Since the caffeine is so stable, the difference mostly boils down to density.


quote:

What I think it’s interesting to note is that when you look at Han’s data, the caffeine difference between the lightest and darkest coffees was around 9% when you measured by the scoop, but about 32% when she measured by weight. That's a big margin! While it’s the density difference between the dark and light roast coffee that gives us the difference in caffeine content, the fact that a scoop of dark roast has less mass than a scoop of light roast actually reduces the net caffeine difference in the scoops-and-spoons scenario. So while darker roast does have more caffeine, that difference is more pronounced when you measure by weight than if you’re scooper.


Its all about the density my baws

Does Dark Roast Coffee Really Have More Caffeine?
This post was edited on 4/15/21 at 10:28 am
Posted by lepdagod
Baton Rouge
Member since Jan 2015
3383 posts
Posted on 4/15/21 at 10:29 am to
quote:

grew up in a household where you would be struck about your head and body if you brought any coffee into the house other than Community Dark Roast. I now buy the Great Value brand Colombian. I can honestly tell no difference between caffeine content or taste, for that matter.


Can’t do it... Community Dark Roast is a must have... price has rose by 30¢ for at least the last ten years though ...
Posted by KamaCausey_LSU
Member since Apr 2013
14492 posts
Posted on 4/15/21 at 10:39 am to
quote:

Its all about the density my baws
This makes a lot of sense.

So for people that measure out their coffee beans by weight. Dark roast has more caffeine because you use more beans to get the same weight due to water loss during the roast.

Measuring by volume is all over the place and doesn't seem to vary much between light roast and dark.

quote:

Can’t do it... Community Dark Roast is a must have... price has rose by 30¢ for at least the last ten years though
Wait until you see it on sale at Albertsons, Rouses, or local grocery, and stock up. You can sometimes find the gold bag Community for $4-5/bag, though I haven't seen it that low in a while.
This post was edited on 4/15/21 at 10:43 am
Posted by Rust
Member since Feb 2019
558 posts
Posted on 4/15/21 at 11:22 am to
quote:

I can honestly tell no difference between caffeine content or taste, for that matter.


Most people can’t. Something like only 15% of the population can. Some of the few who can make big $$$ blind slurping coffee for coffee companies and can tell you what coffee beans were used to make it/their place of origin.

Community knows they can sell their coffee in the south just by using their name. They’re trying to branch out west and north and were starting to do so before covid. Their beans are Arabica as opposed to robusta and can cost quite a bit more depending on origin country. The Rainforest Alliance was also started to prevent people from tearing down more of the Amazon to make coffee farms, so Community didn’t want to get a bad rep and had to pay more for beans, which is also one of the things that drives their prices up
Posted by lsu777
Lake Charles
Member since Jan 2004
30978 posts
Posted on 4/15/21 at 11:38 am to
Mentioned already but technically the longer you roast the bean, the less caffeine it has. But by the time the coffee is made, there isn't a huge difference. But a light roast usually has a tad more.


^
|
This is wrong apparently according to study above.

Eta: well apparently after reading the study above I am wrong. Learn something new everyday.
This post was edited on 4/15/21 at 11:40 am
Posted by Bmath
LA
Member since Aug 2010
18664 posts
Posted on 4/15/21 at 11:41 am to
It's not the roast but the extraction method. Cold brew has a higher caffein content than Hot coffee. This is because cold brew requires the coffee to soak for ~24 which allows more time for the caffein to enter the water.
Posted by Hu_Flung_Pu
Central, LA
Member since Jan 2013
22163 posts
Posted on 4/15/21 at 11:42 am to
Depends. I was told….

Dark roast has more caffeine because the coffee is denser when ground

Light roast has more caffeine per bean

So an ounce of ground dark roast has more caffeine than light roast

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