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102 votes

Does a small cup of coffee result in a 45% reduced blood flow to the brain?

Yes, caffeine intake can reduce blood flow to the brain, but not likely by 45-52% after a small cup of coffee. Summary In studies, they observed a dose-response relationship between caffeine and a ...
Jan's user avatar
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23 votes

Does a small cup of coffee result in a 45% reduced blood flow to the brain?

Q: Does a small cup of coffee result in a 45% reduced blood flow to the brain? tl;dr NO! this means, yes, sure, while there is a significant decrease in measured cerebral blood flow, this is not ...
LangLаngС's user avatar
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18 votes
Accepted

Can coffee grounds clean pipes when disposed in the sink?

Quite the opposite, actually. Avoid putting coffee grounds down the garbage disposal. They won't harm the garbage disposal and they'll actually help eliminate odors. However, they can accumulate in ...
PoloHoleSet's user avatar
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14 votes
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Does one cup of coffee pollute as much as a 10km car drive?

If by "pollution" you mean carbon dioxide release: The Eco Guide discusses the amount of CO2 generated by coffee from growth through shipping to processing and the machines in the cafe where ...
Weather Vane's user avatar
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10 votes

Does coffee cause fat and cellulite gain?

In most studies, caffeine intake was associated with no significant weight change or a slight weight loss. Caffeine - no weight change 1) Caffeinated Coffee Does Not Acutely Affect Energy Intake, ...
Jan's user avatar
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8 votes

Did Voltaire drink 40-50 cups of coffee a day?

A much older source is Frederick II 's eulogy of Voltaire, immediately after his death. An English translation published in 1789 says: He passed whole nights in new modelling his work; and whether it ...
DavePhD's user avatar
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8 votes
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Does having a spoon in the cup keep your coffee hot for longer?

The spoon's conductivity would only heat the coffee if you were holding the spoon with a super-hot hand. Assuming the spoon (and your hand) are both cooler than the coffee, they will both conduct heat ...
Scott Rollans's user avatar
6 votes

Does the coffee plant use caffeine to kill bugs and surrounding plants?

Caffeine on insects That "caffeine kills insects" is an old myth: "I find it considerably interesting and even amusing," said Bussey Professor of Biology Carroll M. Williams. &...
LangLаngС's user avatar
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5 votes
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Does drinking coffee interfere with magnesium absorption?

The Recommended Dietary Allowance for magnesium for adult males is 400 mg (Office of Dietary Supplements at NIH.gov). One cup of coffee has 10 mg of magnesium (USDA.gov), which does not really make it ...
Jan's user avatar
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4 votes
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Is the Specialty Coffee Association of America standard temperature for serving coffee 71-85°C?

The Wikipedia page seems to be incorrect. According to the Specialty Coffee Association of America's website, the ideal brewing temperature for "golden cup" standard coffee is 200°F +- 5°F (93°C +- 3°...
hdhondt's user avatar
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4 votes

Does tea contain as much (or more) caffeine as coffee?

It totally depends on the type of tea, the amount of leaves you use. The average tea bag contains about 2 grams (about a tablespoon) of tea. If you're making loose leaf tea, it's possible you're ...
Kwuz's user avatar
  • 249
3 votes

Did Voltaire drink 40-50 cups of coffee a day?

This is an answer not to address the claim directly, but the implications of the claim (and thus some of its notoriety) by providing important context. Drinking 50 cups of coffee in one day now has ...
Schwern's user avatar
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2 votes
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Does burr-ground coffee taste different than blade-ground coffee?

Yes, it would taste different. Comparing "better" or not is irrelevant, since the question asks simply if it is "different." Here is why it's different: What is the difference ...
PoloHoleSet's user avatar
  • 9,668
1 vote

Can coffee grounds clean pipes when disposed in the sink?

This technique was mentioned in a WCBS-TV report in 2010. Another great use for coffee grounds is as a drain cleaner. Mixed with hot water, coffee grounds can unclog a drain and help keep it ...
aVeRTRAC's user avatar
  • 111
1 vote

Is Starbucks (et al) responsible for reduced calcium deficiencies

Q: Is it true that the change in diet to milky coffee has reduced calcium deficiency in Americans? There seems to be no official data about how many Americans have changed their diets to milky ...
Jan's user avatar
  • 5,022

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