200mg Punch: How Much Caffeine is Really in Ghost Energy Drinks?
Have you ever wondered just how much caffeine is packed into your favorite energy drinks? Specifically, let's zoom in on ...
Read moreHave you ever wondered just how much caffeine is packed into your favorite energy drinks? Specifically, let's zoom in on ...
Read moreAre you grappling with the multitude of choices at Dutch Bros and can't seem to pick the perfect drink? Let's...
In the bustling world of coffee, the name Diavolitto often sparks a buzz of interest among caffeine aficionados. Known for...
When we think of our beloved French Vanilla Cappuccino, it's often the creamy texture and sweet, aromatic flavor that come...
Feeling sluggish? Struggling to concentrate? You're not alone. Many rely on that morning cup of coffee for a much-needed energy...
Pure Leaf Sweet Tea, a refreshing staple in many households, quenches thirst and satisfies taste buds with its signature Southern-style...
For many Southerners, Bojangles' sweet tea is more than just a beverage – it's a cultural icon ️. That sweet,...
Have you ever wondered just how much caffeine is packed into your favorite energy drinks? Specifically, let's zoom in on...
Embarking on a journey through the energetic aisles of our favorite stores, one can't help but notice the vibrant allure...
In the fast-paced world of energy beverages, the caffeine in accelerator drinks stands as the driving force behind their popularity....
According to the National Soft Drink Association, the following is the caffeine content in mgs per 12 oz can of soda:
Afri-Cola 100.0 (?)
Jolt 71.2
Sugar-Free Mr. Pibb 58.8
Mountain Dew 55.0 (no caffeine in Canada)
Diet Mountain Dew 55.0
Kick citrus 54 (36mg per 8oz can, caffeine from guarana)
Mello Yellow 52.8
Surge 51.0
Tab 46.8
Battery energy drink -- 140mg/l = 46.7mg/can
Coca-Cola 45.6
Diet Cola 45.6
Shasta Cola 44.4
Shasta Cherry Cola 44.4
Shasta Diet Cola 44.4
Mr. Pibb 40.8
OK Soda 40.5
Dr. Pepper 39.6
Pepsi Cola 37.2
Aspen 36.0
Diet Pepsi 35.4
RC Cola 36.0
Diet RC 36.0
Diet Rite 36.0
Canada Dry Cola 30.0
Canada Dry Diet Cola 1.2
7 Up 0
Krank2o sample 1 97.7mg/500ml sample 2 101.6mg/500ml
Lab: Ameritech Labs, College Pt, NY; tested Sep 03, 96
Krank2o middle 96.4mg/500ml
Lab: Ameritech Labs, tested Aug 29, 96
By means of comparison, a 7 oz cup of coffee has the following caffeine (mg) amounts, according to Bunker and McWilliams in J. Am. Diet. 74:28-32, 1979:
Drip 115-175
Espresso 100mg of caffeine
1 serving (1.5-2oz)
Brewed 80-135
Instant 65-100
Decaf, brewed 3-4
Decaf, instant 2-3
Tea, iced (12 ozs.) 70
Tea, brewed, imported 60
Tea, brewed, U.S. 40
Tea, instant 30
Mate 25-150mg
The variability in the amount of caffeine in a cup of coffee or tea is relatively large even if prepared by the same person using the same equipment and ingredients day after day.
Reference Variability in caffeine consumption from coffee and tea: Possible significance for epidemiological studies by B. Stavric, R. Klassen, B. Watkinson, K. Karpinski, R. Stapley, and P. Fried in “Foundations of Chemical Toxicology”, Volume 26, number 2, pp. 111-118, 1988 and an easy to read overview, Looking for the Perfect Brew by S. Eisenberg, “Science News”, Volume 133, April 16, 1988, pp. 252-253.
Quote from the lab manual:
Caffeine is present in tea leaves and in coffee to the extent of about 4%. Tea also contains two other alkaloids, theobromine and theophylline. These last two relax the smooth muscles where caffeine stimulates the heart and respiratory systems.
The effects of theobromine are, compared to caffeine and theophylline, relatively moderate. However, cocoa contains eight times more theophylline than caffeine. As well, caffeine has been shown to combine with other substances for added potency. Thus the effects of theobromine might be enhanced by the caffeine in chocolate.
Theobromine is highly toxic to dogs and kills many canids/year via chocolate poisoning. It takes quite a dose to reach fatal levels (more than 200 mg/kg bodyweight) but some dogs have a bad habit of eating out of garbage cans and some owners have a bad habit of feeding dogs candy. A few oreos won’t hurt a dog, but a pound of chocolate can do considerable damage.
Clinical signs of theobromine toxicity in canids usually manifest 8 hours after ingestion and can include: thirst, vomiting, diarrhea, urinary incontinence, nervousness, clonic muscle spasms, seizures and coma. Any dog thought to have ingested a large quantity of chocolate should be brought to an emergency clinic asap, where treatment usually includes the use of emetics and activated charcoal. The dog will thus need to be monitored to maintain proper fluid and electrolyte balance.
Pathogenesis of theobromine toxicity: evidently large quantities of theobromine have a diuretic effect, relax smooth muscles, and stimulate the heart and cns.
Reference:
Fraser, Clarence M., et al, eds. The Merck Veterinary Manual, 7th ed. Rahway, NJ: Merck & Co., Inc. 1991. pp. 1643-44.
On humans caffeine acts particularly on the brain and skeletal muscles while theophylline targets heart, bronchia, and kidneys.
Other data on caffeine:
Cup of coffee 90-150mg
Instant coffee 60-80mg
Tea 30-70mg
Mate 25-150mg
Cola 30-45mg
Chocolate bar 30mg
Stay-awake pill 100mg
Vivarin 200mg
Cold relief tablet 30mg
The following information is from Bowes and Church’s Food values of portions commonly used, by Anna De Planter Bowes. Lippincott, Phila. 1989. Pages 261-2: Caffeine.
Candy:
Chocolate mg caffeine
baking choc, unsweetened, Bakers--1 oz(28 g) 25
german sweet, Bakers -- 1 oz (28 g) 8
semi-sweet, Bakers -- 1 oz (28 g) 13
Choc chips
Bakers -- 1/4 cup (43 g) 13
german sweet, Bakers -- 1/4 cup (43 g) 15
Chocolate bar, Cadbury -- 1 oz (28 g) 15
Chocolate milk 8oz 8
Desserts:
Jello Pudding Pops, Choc (47 g) 2
Choc mousse from Jell-O mix (95 g) 6
Jello choc fudge mousse (86 g) 12
Beverages
3 heaping teaspoons of choc powder mix 8
2 tablespoons choc syrup 5
1 envelope hot cocoa mix 5
Dietary formulas
ensure, plus, choc, Ross Labs -- 8 oz (259 g) 10
Cadbury Milk Chocolate Bar
More stuff:
Guarana "Magic Power" (quite common in Germany),
15 ml alcohol with
5g Guarana Seeds 250.0 mg
Guarana capsules with
500 mg G. seeds 25.0 mg / capsule
(assuming 5% caffeine in seeds as stated in literature)
Guarana soda pop is ubiquitous in Brazil and often available at tropical groceries here. It’s really tasty and packs a wallop. Guarana wakes you up like crazy, but it doesn’t cause coffee jitters.
It is possible that in addition to caffeine, there is some other substance in guarana that also produces an effect, since it ‘feels’ different than coffee. Same goes for mate.
Caffeine Content in beans and blends
(Source: Newsletter–Mountanos Bros. Coffee Co., San Francisco)
VARIETALS/STRAIGHTS
Brazil Bourbons 1.20%
Celebes Kalossi 1.22
Colombia Excelso 1.37
Colombia Supremo 1.37
Costa Rica Tarrazu 1.35
Ethiopian Harrar-Moka 1.13
Guatemala Antigua 1.32
Indian Mysore 1.37
Jamaican Blue Mtn/Wallensford Estate 1.24
Java Estate Kuyumas 1.20
Kenya AA 1.36
Kona Extra Prime 1.32
Mexico Pluma Altura 1.17
Mocha Mattari (Yemen) 1.01
New Guinea 1.30
Panama Organic 1.34
Sumatra Mandheling-Lintong 1.30
Tanzania Peaberry 1.42
Zimbabwe 1.10
BLENDS & DARK ROASTS
Colombia Supremo Dark 1.37%
Espresso Roast 1.32
French Roast 1.22
Vienna Roast 1.27
Mocha-Java 1.17
DECAFS--all @ .02% with Swiss Water Process
Caffeine is an alkaloid. There are numerous compounds called alkaloids, among them we have the methylxanthines, with three distinguished compounds: caffeine, theophylline, and theobromine, found in cola nuts, coffee, tea, cacao beans, mate and other plants. These compounds have different biochemical effects, and are present in different ratios in the different plant sources. These compounds are very similar and differ only by the presence of methyl groups in two positions of the chemical structure. They are easily oxidized to uric acid and other methyluric acids which are also similar in chemical structure.
Caffeine:
Sources: Coffee, tea, cola nuts, mate, guarana.
Effects: Stimulant of central nervous system, cardiac muscle, and
respiratory system, diuretic Delays fatigue.
Theophylline:
Sources: Tea
Effects: Cariac stimulant, smooth muscle relaxant, diuretic, vasodilator
Theobromine:
Sources: Principle alkaloid of the cocoa bean (1.5-3%) Cola nuts and tea
Effects: Diuretic, smooth muscle relaxant, cardiac stimulant, vasodilator.
(Info from Merck Index)
The presence of the other alkaloids in colas and tea may explain why these sometimes have a stronger kick than coffee. Colas, which have lower caffeine contents than coffee are, reportedly, sometimes more active. Tea seems the strongest for some. Coffee seems more lasting for mental alertness and offers fewer jitters than the others.
A search in CAS and produced these names and synonyms:
RN 58-08-2 REGISTRY
CN 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl- (9CI) (CA INDEX NAME)
OTHER CA INDEX NAMES:
CN Caffeine (8CI)
OTHER NAMES:
CN 1,3,7-Trimethyl-2,6-dioxopurine
CN 1,3,7-Trimethylxanthine
CN 7-Methyltheophylline
CN Alert-Pep
CN Cafeina
CN Caffein
CN Cafipel
CN Guaranine
CN Koffein
CN Mateina
CN Methyltheobromine
CN No-Doz
CN Refresh'n
CN Stim
CN Thein
CN Theine
CN Tri-Aqua
MF C8 H10 N4 O2
The correct name is the first one, 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl- (This is the “inverted name”) The “uninverted name” is 3,7-Dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
Merck Index excerpt…
Caffeine: 3,7-dihydro- 1,3,7-trimethyl- 1H-purine- 2,6-dione; 1,3,7-trimethylxanthine; 1,3,7-trimethyl- 2,6-dioxopurine; coffeine; thein; guaranine; methyltheobromine; No-Doz.
C8H10N4O2; mol wt 194.19. C 49.48%, H 5.19%, N 28.85%, O 16.48%.
Occurs in tea, coffee, mate leaves; also in guarana paste and cola nuts: Shuman, U.S. pat. 2,508,545 (1950 to General Foods). Obtained as a by-product from the manuf of caffeine-free coffee: Barch, U.S. pat. 2,817,588 (1957 to Standard Brands); Nutting, U.S. pat. 2,802,739 (1957 to Hill Bros. Coffee); Adler, Earle, U.S. pat. 2,933,395 (1960 to General Foods).
Crystal structure: Sutor, Acta Cryst. 11, 453, (1958). Synthesis: Fischer, Ach, Ber. 28, 2473, 3135 (1895); Gepner, Kreps, J. Gen. Chem. USSR 16, 179 (1946); Bredereck et al., Ber. 83, 201 (1950); Crippa, Crippa, Farmaco Ed. Sci. 10, 616 (1955); Swidinsky, Baizer, U.S. pats. 2,785,162 and 2,785,163 (1957 to Quinine Chem. Works); Bredereck, Gotsmann, Ber. 95, 1902 (1962).
Hexagonal prisms by sublimation, mp 238 C. Sublimes 178 C. Fast sublimation is obtained at 160-165 C under 1mm press. at 5 mm distance. d 1.23. Kb at 19 C: 0.7 x 10^(-14). Ka at 25 C: <1.0 x 10^(-14). pH of 1% soln 6.9. Aq solns of caffeine salts dissociate quickly. Absorption spectrum: Hartley, J. Chem. Soc. 87, 1802 (1905). One gram dissolves in 46 ml water, 5.5 ml water at 80 C, 1.5 ml boiling water, 66 ml alcohol, 22 ml alcohol at 60 C, 50 ml acetone, 5.5 ml chloroform, 530 ml ether, 100 ml benzene, 22 ml boiling benzene. Freely sol in pyrrole; in tetrahydrofuran contg about 4% water; also sol in ethyl acetate; slightly in petr ether. Soly in water is increased by alkali benzoates, cinnamates, citrates, or salicylates.
Monohydrate, felted needles, contg 8.5% H2O. Efflorescent in air; complete dehydration takes place at 80 C. LD50 orally in rats: 200 mg/kg.
Acetate, C8H10N4O2.(CH3COOH)2, granules or powder; acetic acid odor; acid reaction. Loses acetic acid on exposure to air. Soluble in water or alcohol with hydrolysis into caffeine and acetic acid. Keep well stoppered.
Hydrochloride dihydrate, C8H10N4O2.HCl.2H2O, crystals, dec 80-100 C with loss of water and HCl. Sol in water and in alcohol with dec.
Therap Cat: Central stimulant.
Therap Cat (Vet): Has been used as a cardiac and respiratory stimulant and as a diuretic.
From “Principles of biochemistry”, Horton and al, 1993.
Caffeine is sometimes called “theine” when it’s in tea. This is probably due to an ancient misconception that the active constituent is different. Theophylline is present only in trace amounts. It is more diuretic, more toxic and less speedy.
- Caffeine
- 1,3,7-trimethylxanthine
- Theophylline
- 1,3-dimethylxanthine
- Theobromine
- 3,7-dimethylxanthine
Coffee and tea contain caffeine and theophylline, respectively, which are methylated purine derivatives that inhibit cAMP phosphodiesterase. In the presence of these inhibitors, the effects of cAMP, and thus the stimulatory effects of the hormones that lead to its production, are prolonged and intensified.
Theobromine and theophylline are two dimethylxanthines that have two rather than three methyl groups. Theobromine is considerably weaker than caffeine and theophylline, having about one tenth the stimulating effect of either.
Theobromine is found in cocoa products, tea (only in very small amounts) and kola nuts, but is not found in coffee. In cocoa, its concentration is generally about 7 times as great as caffeine. Although, caffeine is relatively scarce in cocoa, its mainly because of theobromine that cocoa is “stimulating”.
Theophylline is found in very small amounts in tea, but has a stronger effect on the heart and breathing than caffeine. For this reason it is often the drug of choice in home remedies for treating asthma bronchitis and emphysema. The theophylline found in medicine is made from extracts from coffee or tea.
Yes and no. An espresso cup has about as much caffeine as a cup of dark brew. But servings for espresso are much smaller. Which means that the content of caffeine per millilitre are much higher than with a regular brew. Moreover, caffeine is more quickly assimilated when taken in concentrated dosages, such as an espresso cup.
The myth of lower caffeine espresso comes comes from the fact that the darker roast beans used for espresso do have less caffeine than regularly roasted beans as roasting is supposed to break up or sublimate the caffeine in the beans (I have read this quote on research articles, but found no scientific studies supporting it. Anybody out there?). But espresso is prepared using pressurized water through significantly more ground (twice as much?) than regular drip coffee, resulting in a higher percentage of caffeine per millilitre.
Here’s the caffeine content of Drip/Espresso/Brewed Coffee:
Drip 115-175
Espresso 100 1 serving (1.5-2oz)
Brewed 80-135
Caffeine is very bitter. Barq’s Root Beer contains caffeine and the company says that it has “12.78mg per 6oz” and that they “add it as a flavouring agent for the sharp bitterness”
Sources: Physicians Desk Reference and Institute of Food Technologies from Pafai and Jankiewicz (1991) DRUGS AND HUMAN BEHAVIOUR
cocoa 250mg theobromine
bittersweet choc. bar 130mg theobromine
5 oz cup brewed coffee no theobromine
tea 5oz cup brewed 3min
with teabag 3-4 mg theophylline
Diet Coke no theobromine or theophylline
© 2019 MOCHA ART CAFE. ALL RIGHTS RESERVED.
© 2019 MOCHA ART CAFE. ALL RIGHTS RESERVED.