How Much Caffeine is in a Cup of Coffee?

[gnar lee]

It highly depends on the beans - variety etc.
Usually the amount of caffeine in an Arabica bean is somewhere between 0.8% and 1.4% while Robusta beans are somewhere between 1.7% and 4.0%!
That means a strong Robusta can have more than 4 times the amount of caffeine than a mellow Arabica...

 

[BestProductsHouse]

There are so many variables involved that any given number is just a basic guideline and nothing more. I've never known or read of a death actually being caused solely by caffeine and I doubt it's really likely/possible. I would imagine the body's defense mode would kick in somehow to prevent too much from being consumed at a given time. The '400 mg' safe zone is barely a starting point to my day. I can easily consume upwards of 1 gram in a 3-4 hr. timeframe and feel nothing out of the ordinary. No change in blood pressure, pulse, agitation, nothing... Not just guessing with my number either as my typical morning averages 5-6 doubles (espresso) in a few hours and often followed up with 1-2 energy drinks that are 160-240 mg each. I do feel what energy I have is simply sustained, but it takes quite a bit to actually feel energized on an unusual level. Honestly believe at this point in life I would have to consume upwards of 2 grams daily to feel any sort of a real jolt.

I do take health seriously as for the last 3 yrs I've battled a very serious near fatal illness that led to life altering/permanent changes. Also caused 2 small strokes at which time I cut my caffeine intake in half practically overnight just to be sure things would smooth out. The strokes had absolutely nothing to do with caffeine, blood pressure, etc., but I was doing my part to keep things in check. Once scans/labs were done to confirm and I started feeling somewhat normal again I did slowly bump up my caffeine intake to get back to my daily fix level. Told my neurologist that I was not ever intending to give up caffeine as it's the one thing that never lets me down and they totally agreed. Saying my system can handle what I do with no apparent problems and they had no concern on any changes to my daily regimen. When neurology can't suggest any room for improvement it sorta speaks volumes.

Point being we are all different with what we can tolerate and the only sure way to know is to try things to see what the end result is. Don't just go by what you read or hear, etc.

"There are so many variables involved that any given number is just a basic guideline" - Yes; you are right but "nothing more" it is not like that.

"Point being we are all different with what we can tolerate and the only sure way to know is to try things to see what the end result is."- Yes; you are absolutely right, it depends on each individual person's body metabolism system.

Perhaps everybody should know the basic guideline- how much he/she should consume normally to be safe.

Thank you Pal

 

[ErinKeegan]

There are so many variables involved that any given number is just a basic guideline and nothing more. I've never known or read of a death actually being caused solely by caffeine and I doubt it's really likely/possible. I would imagine the body's defense mode would kick in somehow to prevent too much from being consumed at a given time. The '400 mg' safe zone is barely a starting point to my day. I can easily consume upwards of 1 gram in a 3-4 hr. timeframe and feel nothing out of the ordinary. No change in blood pressure, pulse, agitation, nothing... Not just guessing with my number either as my typical morning averages 5-6 doubles (espresso) in a few hours and often followed up with 1-2 energy drinks that are 160-240 mg each. I do feel what energy I have is simply sustained, but it takes quite a bit to actually feel energized on an unusual level. Honestly believe at this point in life I would have to consume upwards of 2 grams daily to feel any sort of a real jolt.

I do take health seriously as for the last 3 yrs I've battled a very serious near fatal illness that led to life altering/permanent changes. Also caused 2 small strokes at which time I cut my caffeine intake in half practically overnight just to be sure things would smooth out. The strokes had absolutely nothing to do with caffeine, blood pressure, etc., but I was doing my part to keep things in check. Once scans/labs were done to confirm and I started feeling somewhat normal again I did slowly bump up my caffeine intake to get back to my daily fix level. Told my neurologist that I was not ever intending to give up caffeine as it's the one thing that never lets me down and they totally agreed. Saying my system can handle what I do with no apparent problems and they had no concern on any changes to my daily regimen. When neurology can't suggest any room for improvement it sorta speaks volumes.

Point being we are all different with what we can tolerate and the only sure way to know is to try things to see what the end result is. Don't just go by what you read or hear, etc.

very detailed explanation, thanks

 

[beangarlicbread]

Do you have a cup or two cups of coffee every day? Do you even know how much caffeine is in a cup of coffee anyways (warning, it’s a lot)? You may feel interested in knowing why it does what it does. It’s because of the caffeine and now you want to know how much caffeine is making you feel what you feel.
This is a tough question to answer because what size of a cup are you talking about? Are you referring to a huge cup or a small disposable cup that restaurants usually serve you with? So, it is best if we talk in terms of liquid units.

So let's start your assumption here

I'm a fan of a cup or two of joe myself. And oh yeah, caffeine packs a punch, no doubt about it. It's wild how it affects us, right? But hey, let's dive into the specifics. The caffeine content varies depending on the cup size, so let's talk liquid units instead. On average, a regular cup of coffee has around 8 ounces, and it packs a decent amount of caffeine. But remember, it can vary depending on the brew and bean. So, spill the beans, what assumption are we starting with?

 

[thesamestranger]

Good info!

 

[JeffD]

Do you have a cup or two cups of coffee every day? Do you even know how much caffeine is in a cup of coffee anyways (warning, it’s a lot)? You may feel interested in knowing why it does what it does. It’s because of the caffeine and now you want to know how much caffeine is making you feel what you feel.
This is a tough question to answer because what size of a cup are you talking about? Are you referring to a huge cup or a small disposable cup that restaurants usually serve you with? So, it is best if we talk in terms of liquid units.

So let's start your assumption here

I can look it up, but really its just a number. The other number it is good to know is the half life of caffeine in the body, which also I can look up.

I have learned (low these many years) how much coffee to drink and how fast to drink it. And that specifically, I drink a lot, and not too fast, all day long. The benefits to me outweigh the risks gigantically. No question. Being able to see the sun come up and get things done in the morning, not being sleepy or late to meetings. Being effective and motivating others to be effective, driving home safely, being awake with and for my family.

The only adverse effects I experience are, umm, none that I can think of. Oh wait, there is one. I have an impatience for those who imply (or state outright) I should drink less coffee. Doctors I have talked to have emphasized that if it is not causing a problem, it is not a problem. Whatever the numbers may be.

 

[LakeAtitlanCoffee]

well.... on average about 100 people dies of "too much caffeine which is about 12000 mg of caffeine) a year. On the other hand, Beethoven used to drink 50 cups a day and Bach with 30 cups. Perhaps drinking a lot of coffee might give you with a musical super power????

 

[JeffD]

well.... on average about 100 people dies of "too much caffeine which is about 12000 mg of caffeine) a year. On the other hand, Beethoven used to drink 50 cups a day and Bach with 30 cups. Perhaps drinking a lot of coffee might give you with a musical super power????

About 500 people per year die of electrical fires in the home. We still use electricity.

 

[JeffD]

I say drink as much as you want. And if you start to have any effects, like jitters or trouble sleeping at night, back off a bit.

Coffee drinkers sometimes report increased anxiety. Perhaps it is anxiety over how much coffee they are drinking and its impact on health. Don't worry, be happy.