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http://en.wikipedia.org/wiki/Recipe_for_Coca-Cola
Pemberton recipe
This recipe is attributed to a diary owned by Coca-Cola inventor, John S. Pemberton, just before his death in 1888. (U.S. measures).[16][17]
Ingredients:
1 oz (28 g) caffeine citrate
3 oz (85 g) citric acid
1 US fl oz (30 ml) vanilla extract
1 US qt (946 ml) lime juice
2.5 oz (71 g) "flavoring," i.e., "Merchandise 7X"
30 lb (14 kg) sugar
4 US fl oz (118.3 ml) fluid extract of coca leaves (flavor essence of the coca leaf).
2.5 US gal (9.5 l; 2.1 imp gal) water
caramel sufficient to give color
"Mix caffeine acid and lime juice in 1 quart boiling water add vanilla and flavoring when cool."
Flavoring (Merchandise 7X):
1 qrt alcohol
80 oil orange
40 oil cinnamon
120 oil lemon
20 oil coriander
40 oil nutmeg
40 oil neroli
"Let stand 24 hours."
This recipe does not specify when or how the ingredients are mixed, or the flavoring oil quantity units of measure (though it implies that the "Merchandise 7X" was mixed first). This was common in recipes at the time, as it was assumed that preparers knew the method.
[edit]Reed recipe
This recipe is attributed to pharmacist John Reed.[18][19]
30 lb (14 kg) sugar
2 US gal (7.6 l; 1.7 imp gal) water
1 US qt (950 ml) lime juice
4 oz (110 g) citrate of caffeine
2 oz (57 g) citric acid
1 US fl oz (30 ml) extract of vanilla
3⁄4 US fl oz (22.18 ml) fluid extract of kola nut
3⁄4 US fl oz (22.18 ml) fluid extract of coca
[edit]Merory recipe
Recipe is from Food Flavorings: Composition, Manufacture and Use. Makes one 1 US gallon (3.8 l; 0.83 imp gal) of syrup. Yield (used to flavor carbonated water at 1 US fl oz (30 ml) per bottle): 128 bottles, 6.5 US fl oz (190 ml).[20]
Mix 5 lb (2.3 kg) of sugar with just enough water to dissolve the sugar fully. (High-fructose corn syrup may be substituted for half the sugar.)
Add 11⁄4 oz (35 g) of caramel, 1⁄10 oz (3 g) caffeine, and 2⁄5 oz (11 g) phosphoric acid.
Extract the cocaine from 5⁄8 drachms (1.1 g) of coca leaf (Truxillo growth of coca preferred) with toluol; discard the cocaine extract.
Soak the coca leaves and kola nuts (both finely powdered); 1⁄5 drachms (0.35 g) in 3⁄4 oz (21 g) of 20% alcohol.
California white wine fortified to 20% strength was used as the soaking solution circa 1909, but Coca-Cola may have switched to a simple water/alcohol mixture.
After soaking, discard the coca and kola and add the liquid to the syrup.
Add 1 oz (28 g) lime juice (a former ingredient, evidently, that Coca-Cola now denies) or a substitute such as a water solution of citric acid and sodium citrate at lime-juice strength.
Mix together
1⁄4 drachms (0.44 g) orange oil,
1⁄10 drachms (0.18 g) cassia (Chinese cinnamon) oil,
1⁄2 drachms (0.89 g) lemon oil, traces of
2⁄5 drachms (0.71 g) nutmeg oil, and, if desired, traces of
coriander,
neroli, and
lavender oils.
Add 1⁄10 oz (2.8 g) water to the oil mixture and let stand for twenty-four hours at about 60 °F (16 °C). A cloudy layer will separate.
Take off the clear part of the liquid only and add the syrup.
Add 7⁄10 oz (20 g) glycerine (from vegetable source, not hog fat, so the drink can be sold to Jews and Muslims who observe their respective religion's dietary restrictions) and 3⁄10 drachms (0.53 g) of vanilla extract.
Add water (treated with chlorine) to make a gallon of syrup.
[edit]Beal/This American Life recipe
On February 11, 2011, Ira Glass revealed on his PRI radio show, This American Life, that the secret formula to Coca-Cola had been uncovered in "Everett Beal's Recipe Book", reproduced in the February 28, 1979, issue of the The Atlanta Journal-Constitution. The formula found basically matched the formula found in Pemberton's diary.[21][22][23] The recipe revealed contains:[24]
Fluid extract of Coca: 3 drams USP
Citric acid: 3 oz
Caffeine: 1 oz
Sugar: 30 lbs
Water: 2.5 gal
Lime juice: 2 pints (1 quart)
Vanilla: 1 oz
Caramel: 1.5 oz or more for color
The secret 7X flavor (use 2 oz of flavor to 5 gals syrup):
Alcohol: 8 oz
Orange oil: 20 drops
Cinnamon oil: 10 drops
Lemon oil: 30 drops
Coriander oil: 5 drops
Nutmeg oil: 10 drops
Neroli oil: 10 drops
)
