Cocoa powder

Cocoa powder, often simply cocoa, is an aromatic powder derived from the seeds of the Theobroma cacao tree. It is produced by roasting and grinding the seeds, referred to as cocoa beans, and then removing most of the cocoa butter from the resulting paste. Usually sold as a fine powder, cocoa is widely used in baking and beverages, notably hot cocoa, because of its intense chocolate flavor without most of the fat found in cocoa beans. The two main types are natural cocoa powder and Dutch-processed cocoa powder, both of which are available in various fat percentages.

The (non-fat) cocoa solids that make up most of cocoa powder consist primarily of carbohydrates, dietary fiber and protein. They also contain significant amounts of minerals such as iron and magnesium. In addition, cocoa is rich in polyphenols, particularly flavonoids. High-fat cocoa powder is also naturally calorie-dense.

Production

Defatted cocoa, usually in the form of a press cake, is what remains after cocoa butter has been pressed from chocolate liquor. The press cake is then ground into a fine powder.

The liquor manufacturers often choose to press acidic beans they consider lower quality.[1]

Physical properties

Fat content

Depending on its cocoa butter content, cocoa powder is usually classified into two groups: ordinary (or whole) cocoa powder, which is characterised by a comparatively high cocoa butter content (20–22%), and low-fat (or reduced-fat) cocoa powder, which contains only 10–12% fat.[2] Other cocoa powders may have between 0% and 24% fat, depending on pressure and pressing times. Low-fat cocoa powders are generally lighter in colour than ordinary cocoa powders.[3]

Natural cocoa

Natural cocoa powder is extracted with the Broma process where after the cocoa fats have been removed from the chocolate nibs the remaining dry cocoa beans are ground into cocoa powder, which is sold to consumers. Natural cocoa powder has a light-brown color and an extractable pH of 5.3 to 5.8.[4][5]

Because of its acidity, natural cocoa is often paired in recipes with baking soda (sodium bicarbonate). This neutralizes the acidity and creates carbon dioxide which in cakes helps them rise.

Dutch process cocoa

Dutch process cocoa or Dutched cocoa[6] is cocoa powder that has been treated with an alkalizing agent to modify its color, neutralize its pH and give it a milder taste compared to natural cocoa.[6] It forms the basis for much of modern chocolate, and is used in ice cream, hot chocolate, and baking.

The alkalization process reduces bitterness and improves solubility, which is important for beverage product applications.[5] Alkalizing agents employed vary, but include potassium carbonate and sodium carbonate.

Nutrition

Cocoa, dry powder, unsweetened
Nutritional value per 100 g (3.5 oz)
Energy954 kJ (228 kcal)
57.90 g of which fibre approx. 33 g
13.70 g
19.60 g
Vitamins and minerals
MineralsQuantity
%DV
Calcium
10%
128 mg
Iron
77%
13.86 mg
Magnesium
119%
499 mg
Manganese
167%
3.837 mg
Phosphorus
59%
734 mg
Potassium
51%
1524 mg
Sodium
1%
21 mg
Zinc
62%
6.81 mg
Other constituentsQuantity
Water3.00 g
Caffeine230 mg
Theobromine2060 mg

Percentages estimated using US recommendations for adults,[7] except for potassium, which is estimated based on expert recommendation from the National Academies.[8]

Cocoa powder is 58% carbohydrates, 14% fat, 20% protein, and 3% water (table). It contains several minerals in rich content (having a Daily Value of 20% or higher), including manganese, magnesium, phosphorus, potassium, iron, and zinc, while calcium levels are moderate (table).[9]

Flavonoids

Cocoa powder is rich in flavonoids (especially flavan-3-ols),[10] a subset of polyphenols. The amount of flavonoids depends on the amount of processing and manufacturing the cocoa powder undergoes. Alkalization, also known as Dutch processing, causes its content of flavonoids to be substantially reduced.[4][11][12]

Safety

Cadmium content

Cocoa powders may contain cadmium, a toxic heavy metal,[13][14] found naturally in high levels in the soil of some regions of cocoa-producing countries. The European Union has imposed a limit (as of January 1, 2019) for cadmium in cocoa powder of 0.6 μg per gram of cocoa powder and 0.8 μg per gram for chocolate with ≥ 50% total dry cocoa solids (fat and non-fat cocoa solids combined).[15] In Canada, a daily serving of a natural health product must contain no more than 6 μg of cadmium for an individual weighing 150 pounds (68 kg) and 3 μg for a 75 lb (34 kg) individual.[16] While the US government has not set a limit for cadmium in foods or health products, the state of California has established a maximum allowable daily level of oral cadmium exposure of 4.1 μg and requires products containing more than this amount per daily serving to bear a warning on the label.[17]

See also

References

  1. ^ Greweling, Peter P (2013). Chocolates & Confections: Formula, Theory, and Technique for the Artisan Confectioner (2nd ed.). Hoboken, New Jersey: John Wiley & Sons. p. 32. ISBN 978-0-470-42441-4.
  2. ^ Wybauw, Jean-Pierre (2007). Fine Chocolates: Great Experience. Tielt. p. 19.
  3. ^ "Understanding the Differences Among Cacao Powders". Callebaut. Retrieved May 10, 2026.
  4. ^ a b Miller, Kenneth B.; Jeffery Hurst, William; Payne, Mark J.; Stuart, David A.; Apgar, Joan; Sweigart, Daniel S.; Ou, Boxin (2008). "Impact of Alkalization on the Antioxidant and Flavanol Content of Commercial Cocoa Powders". Journal of Agricultural and Food Chemistry. 56 (18): 8527–8533. Bibcode:2008JAFC...56.8527M. doi:10.1021/jf801670p. PMID 18710243.
  5. ^ a b "Materials Handled Cocoa Powder: Overview". Archived from the original on April 7, 2014. Retrieved April 2, 2014.
  6. ^ a b "Art of Darkness II: Cocoa : Good Eats". Food Network. November 16, 2009. Archived from the original on September 17, 2008. Retrieved May 27, 2013.
  7. ^ United States Food and Drug Administration (2024). "Daily Value on the Nutrition and Supplement Facts Labels". FDA. Archived from the original on 2024-03-27. Retrieved 2024-03-28.
  8. ^ "TABLE 4-7 Comparison of Potassium Adequate Intakes Established in This Report to Potassium Adequate Intakes Established in the 2005 DRI Report". p. 120. In: Stallings, Virginia A.; Harrison, Meghan; Oria, Maria, eds. (2019). "Potassium: Dietary Reference Intakes for Adequacy". Dietary Reference Intakes for Sodium and Potassium. pp. 101–124. doi:10.17226/25353. ISBN 978-0-309-48834-1. PMID 30844154. NCBI NBK545428.
  9. ^ "Cocoa, dry powder, unsweetened per 100 g". USDA FoodData Central. 2020. Archived from the original on April 3, 2019. Retrieved February 19, 2021.
  10. ^ Zięba K, Makarewicz-Wujec M, Kozłowska-Wojciechowska (2019). "Cardioprotective Mechanisms of Cocoa". Journal of the American College of Nutrition. 38 (6): 564–575. doi:10.1080/07315724.2018.1557087. PMID 30620683.
  11. ^ "Product Review: Cocoa Powders, Dark Chocolate, Extracts, Nibs, & Supplements". ConsumerLab.com. ConsumerLab.com LLC. May 17, 2014. Archived from the original on August 13, 2020. Retrieved February 10, 2015.
  12. ^ "Chocolate Terms". Thenibble.com. Archived from the original on November 9, 2020. Retrieved May 27, 2013.
  13. ^ United Nations. Heavy Metals: Cadmium. United Nations Environment Programme.
  14. ^ United States Department of Health and Human Services. "Cadmium and Cadmium Compounds CAS No. 7440-43-9 (Cadmium)" (PDF). Report on Carcinogens (15th ed.). National Toxicology Program. The evidence was classified as sufficient for lung cancer and limited for prostate and kidney cancer (Straif et al. 2009).
  15. ^ "Commission Regulation (EU) No 488/2014 of 12 May 2014: Amending Regulation (EC) No 1881/2006 as regards maximum levels of cadmium in foodstuffs". May 12, 2014. Archived from the original on August 24, 2018. Retrieved August 22, 2016.
  16. ^ "Quality of natural health products guide". August 20, 2012. Archived from the original on October 18, 2016. Retrieved August 22, 2016.
  17. ^ "Proposition 65 Maximum Allowable Daily Level (MADL) for Reproductive Toxicity for Cadmium (Oral Route)" (PDF). Archived (PDF) from the original on February 9, 2017. Retrieved August 22, 2016.