Questions tagged [caffeine]

Caffeine is a stimulant drug with a bitter taste. It is produced naturally by coffee plants. It can survive the heat of roasting and is water-soluble, so brewed coffee will contain caffeine. Use this tag for questions relating to caffeine content.

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10k views

What is the caffeine content in Lavazza brand coffee

What is the caffeine content of the Italian coffee LAVAZZA brand? It is sold at several roast levels, so there is probably some variation.
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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?
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Roughly how strong is one shot of espresso compared to a cup of drip coffee?

Every morning, I have one 12 oz. cup of drip coffee, to the point where I have become dependent on it. When I’m traveling, it’s often hard to find someone who will make me a straight cup of coffee. I ...
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It is good for my health to drink coffee 10 times a day?

I am working on a computer 15 hours a day, and I feel tired and sleepy a lot between the work. So I prefer to drink coffee to get rid of tiredness. Coffee gives me an energy boost and makes me able to ...
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How much caffeine is in 1 teaspoon of ground Arabica coffee?

Arabica is said to have less caffeine than Robusta. Couldn't find info about this specific question in Google hence asking here. The grind I have is for filter coffee.
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186 views

What are the effects of caffein olfaction?

Does smelling caffeine share equivalent effects on our central nervous system to those immediately apparent when ingesting? More precisely, does the aroma of coffee necessitate a beneficial ...
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941 views

What type of roast has the lowest caffeine content?

I'm aiming to reduce my caffeine intake, but don't want to drop coffee altogether. What roasts / beans release the least amount of caffeine into my body when drank?
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What are the side effects of drinking too much coffee?

Are there any side effects when you drink too much strong coffee? Is it dangerous? In example, if I drink the world's most expensive Starbucks coffee (costing $55/£33) featuring 60 espresso shots at ...
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40 views

Does hydration level change the effect of caffeine?

Apologies if this question does not belong here, it may be suit for the chemistry site, but it pertains to the consumption of coffee directly -> so here it is. Does your prior level of hydration ...
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496 views

How many milligrams of caffeine are in a fresh coffee bean?

how much caffeine in a raw coffee bean? As in, raw, freshly picked, just remove hard outer shell and eat the rest.
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1answer
215 views

What is the most effective way of consuming coffee (and caffeine in general)?

I generally drink 1–2 cups of coffee per day, between 09:00–12:00. I switch to teas after lunch so I'm not still full of caffeine by the time I go to bed. I wouldn't say that's heavy usage by any ...
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854 views

How much caffeine delivered by eating coffee grounds

I eat coffee grounds. I have size 000 capsules (just think of the size of the largest supplement capsules you may have seen), a capsule maker, and some Death Wish (which they tout as premium Ruousto, ...
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Am I psychologically addicted to coffee?

I do not really mind if I am addicted to coffee. However, I noticed a psychological effect and that makes me kind of curious. When I do not drink coffee, I feel more negative about life. Caffeine ...
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58 views

How coffee activates the nerve cells of the brain and what is the mechanism of it?

After drinking coffee we feel so relaxed and our brains feel so free. Why this happens?
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119 views

What should be the daily coffee intake?

I am from Pakistan. Summers here are very hot. My question is how many cups of coffee are recommended as a daily intake in summers? should the daily intake of coffee vary in summers and winters?
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102 views

Is one cup of coffee a day good? [duplicate]

Is there any effect of drinking coffee daily? Is coffee harmful for health?How can I make my coffee healthier? Are there any benefits of drinking coffee daily?
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102 views

Does coffee help if you are tired because you have over slept?

If you have over slept and was drowsy because of this, would coffee give you an effective boost to get your day started or would you be better off with something like a sugary soda?
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How can I figure out how much caffeine is in my cup?

I haven't been able to find a good way to approximate the amount of caffeine in the coffee I make. Googling yields information like this Mayo Clinic article that mixes serving sizes and brewing ...
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141 views

Sweating due to coffee intake

I sweat a lot. I have tried so many methods to combat sweating but none of it worked. Antiperspirants and other home remedies didn't work at all. I don't have enough money to go for botox or other ...
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1answer
94 views

Is coffee/caffeine addictive?

I've heard that people get addicted. In other words, if someone has coffee regularly and they skip a day, then on that day they feel "low" or perform worse than they used to when they weren't a coffee ...
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254 views

How long do the effects of caffeine take to appear?

Taking as a parameter the first sip of coffee we drink, and taking 10 minutes to drink a cup of coffee, how soon are the effects of caffeine to appear?
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How can I maximize the time the “high” lasts?

I know it's individual, but in general (or at least, in average): What are the main factors in how long does a coffee's "high" last? Can I deliberately make it last more than an hour? More than 3? I ...
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334 views

Effect of Sugar on Perceived Bitterness in Coffee

Abstract: Food and Function Sugar changes the chemical structure of tea and coffee Is this effect of sugar in water on coffee solids to be trusted? I like some coffees black (pourover, drip) and ...
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Can caffeine be extracted by the body when digesting coffee grounds?

I'm told my great-grandmother used to drink the coffee, then eat the grounds with some sugar. Assuming there was caffeine left in them, is the body able to extract caffeine from coffee grounds by ...
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Is there a “caffeine metabolism curve”, understood by general public?

I've long been interested in how long caffeine stays in my body and what are the effects at different concentrations and times. For example, a popular site erowid has metabolism curves for most ...
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Does ground coffee lose caffeine like it loses aroma?

What I know is that, for the best taste, one should grind the coffee right before brewing it. Storing ground coffee makes it lose part of its taste, even if there are ways to counteract that effect. ...
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549 views

Does caffeine raise cholesterol (good or bad)?

I've heard that coffee can raise your cholesterol. If that's true, is it a bad thing? Is regular or acute exposure to coffee dangerous in this way?
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Does coffee affect people from all races the same?

I strongly assume that, if the looks from people all over the world vary, then also there metabolic system should vary and wonder, if there are noticeable differences how caffeine affects people from ...
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Additions to decaff coffee to complement taste

I'm alternating drinking decaf bean coffee (O2 process) alongside caffeinated beans. Normally I drink caffeinated either black or with a little milk. With decaf, the reduced body of the taste is ...
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How to weaken effects of caffeine after consumption

Yesterday I had a way too big, way too strong cup of 100% Robusta. I had never tried pure Robusta before, so I had no idea what I was getting into. I experienced strong caffeine effects 6+ hours after ...
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198 views

Caffeine and Hearing loss

What amount of coffee has an ototoxic effect after an acute noise exposure? I'm referring to this study: https://www.ncbi.nlm.nih.gov/m/pubmed/26940042/ I know that they use 25mg/kg which equals ...
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Why does French press not give enough 'Caffeine Effect'?

I've been drinking drip coffee for several years. It's been perfect for me. It tastes good and most importantly it makes me awake. Recently I started drinking french press coffee and there is ...
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Will I get dehydrated from drinking coffee?

In fact, 54 percent of Americans over the age of 18 drink an average of 3.1 (8 oz) cups per day; the equivalent to 40 billion dollars spent solely on the ever-so-popular cup o' Joe. With over half of ...
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179 views

Finding if coffee is a health risk after best before

I have couple of coffee in my cabin where I visit on weekend and I saw 2 coffee which were best before xx 2017. One has big chunk of coffee and looks faded and the other got faded colour. I have no ...
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170 views

How bad is it for people with nervous tension to have coffee?

I am suffering from nervous tension and anxiety. Doctors have prescribed me regular anxiety reliever drugs and also asked me to completely stay away from tea, coffee, cola or any other beverages ...
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378 views

Does a decaffeinated coffee have zero or little caffeine in it?

Does any average kind of decaffeinated coffee have zero or very little caffeine in it?
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422 views

Why do I feel lousy, low, out of energy after the high coffee gives?

I started drinking a lot of coffee after coming to college. I became instantly energized and social after grabbing a cup or two. But then at night I became extremely dull, unsocial-able, and quite ...
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1answer
5k views

How long does it take to reset caffeine tolerance

I've read on different websites, mainly fitness related, about cycling a pre-workout due to a build up of caffeine tolerance. The suggestions generally range in 1-2 weeks, but I think this would be a ...
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Which of these espresso variant contain more caffeine?

Can you please explain what is the difference between these types of coffee and which one of them contains more caffeine then the others: American Espresso Lungo Ristretto And please if it's ...
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1answer
437 views

Caffeine vs Nicotine addiction [closed]

We, who love coffee very much, have a belief that coffee(which has caffeine) is better than cigarette or any other products which has nicotine. But as far as I know caffeine isn't so good for the body ...
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1answer
102 views

How does a snack with a coffee slow down the caffeine's effect?

I have stumbled upon the following sentence: Have your coffee with a snack to allow a slower release of caffeine into your system. Browsing the internet I could see exactly the same claims, not only ...
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4answers
9k views

Is there more caffeine with an AeroPress?

I like everything about the AeroPress; however, I noticed that I exhibited symptoms which I usually only have when I've consumed too much caffeine. So instead of using two scoops during preparation ...
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0answers
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How to decaffeinate coffee? [duplicate]

I was wondering how coffee is being decaffeinated. How is this achieved? Are there different approaches? Since when is this practice?
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1k views

Is coffee a pro-oxidant or an antioxidant?

I've heard that coffee acts as a pro-oxidant which damages cells and tissues causing the long-term effect of shorting life expectancy (Free-radical theory of aging), the opposite of how antioxidants ...
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How much caffeine is in an espresso shot?

Many people seem to think that a 0.85oz shot of espresso has the same amount of caffeine as a cup of coffee. Is there any validity to this?
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1answer
124 views

Recommended time to finish a cup of coffee for the best caffeine surge?

Is there such thing as a recommended time lapse in which to finish drinking a cup of coffee, in which you get the best kick out of the caffeine?
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Roughly how much caffeine am I ingesting when I eat chocolate coffee beans?

I love a bag of chocolate coated coffee beans, but I do tend to eat them much like any other sweets (read: in large quantities with little to no restraint). Whole bags within arms' reach will vanish. ...
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365 views

Is coffee really useful for alcohol hangovers

When people experience a hangover due to too much alcohol intake the hours before, sometimes they are offered a good cup of coffee (at least in my country), not as the only or the main "treatment", ...
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163 views

Can I have this type of coffee?

I would like to know if people normally have the type of coffee I do. I take coffee from a vending machine that has a variety of options (latte, cappuccino, espresso) of which I choose espresso. This ...
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Does coffee consumption cause continuous chest pain? [closed]

I drink coffee twice a day for almost a month. Lately, for last few week, I feel chest pain right after drinking coffee. I initially thought that was some gastric related problem. But even after ...