Black garlic

Black garlic is a type of aged garlic that is colored deep brownish-black. The process is of East Asian origin. It is made by placing garlic (Allium sativum) in a controlled environment of low heat and high humidity over the course of several weeks, a process that produces black cloves. The heat produces key intermediate compounds through the Maillard reaction which give the black garlic its color and distinctive taste. Black garlic is used in a wide variety of culinary applications.[1]

Black garlic


Black garlic is made when heads of garlic, or separated cloves, are aged in an environment of controlled humidity (80 to 90%) at temperatures ranging from 60 to 90 °C (140 to 190 °F) for 15 to 90 days (typically 85% humidity at 70 °C for 40 days). No additives or preservatives are used and there is no burning of any kind. The enzymes that give fresh garlic its sharpness break down. These conditions are thought to facilitate the Maillard reaction, the chemical process that produces new flavor compounds responsible for the deep taste of seared meat and fried onions. The cloves turn black and develop a sticky date-like texture.[2]

Bacterial endophytes capable of fermentation and with strong heat resistance have been identified in common garlic and black garlic.[3] These may have relevance in black garlic production.[3][4]

Flavor profile

In black garlic, the distinct pungency of fresh garlic is softened such that it almost or entirely disappears, and the garlic develops notes of licorice, tamarind and caramel. Its flavor is dependent on that of the fresh garlic that was used to make it. Garlic with a higher sugar content produces a milder, more caramel-like flavor, whereas garlic with a low sugar content produces a sharper, somewhat more acidic flavor.[1] Burnt flavors may also be present if the garlic was heated for too long at too high a temperature or not long enough: during heating, the garlic turns black in color well before the full extent of its sweetness is able to develop. Black garlic's softness increases with water content.

Culinary uses

Black garlic can be used alone, on bread, with cheese, red wine or dark chocolate, in soups or sauces, with meat or fish, crushed into mayonnaise, added to a vinaigrette, or with a vegetable dish. The cloves may also be crushed and then water added to create a paste or liquid. Black garlic has a flavor different from fresh garlic.

It gained USA television attention when it was used in battle redfish on Iron Chef America, episode 11, season 7 (on Food Network), and in an episode of Top Chef New York (on Bravo),[5] where it was added to a sauce accompanying monkfish, tilefish, risotto or chicken.[1][6]

In the United Kingdom,[7] where it made its TV debut on the BBC's Something for the Weekend cooking and lifestyle program in February 2009,[8] farmer Mark Botwright, owner of the South West Garlic Farm, claimed to have developed a process for preserving garlic after finding a 4000-year-old Korean recipe for "black garlic".[9]

Black garlic was featured on Season 5 Episode 5 of Bob's Burgers "Best Burger." Bob needs black garlic for his "Bet it all on Black Garlic" burger for a grilling competition.

See also

  •  Food portal


  1. Fabricant, Florence (2008-10-07). "Garlic, Either Sweet or Squashed". The New York Times. Retrieved 2009-03-01.
  2. "Chefs Are Going Crazy for Black Garlic (and You Will, Too)". Bon Appétit. Retrieved 2019-09-30.
  3. Qiu Z, Lu X, Li N, Zhang M, Qiao X (February 2018). "Characterization of garlic endophytes isolated from the black garlic processing". MicrobiologyOpen. 7 (1): e00547. doi:10.1002/mbo3.547. PMC 5822338. PMID 28990361. Seven kinds of Bacillus were found from garlic and black garlic, respectively. Further studies demonstrated that the total bacteria and endophytes showed a sharp decrease firstly, followed by a rapid rise, then maintained at a certain level, and finally slowed during the black garlic processing. B. subtilis, B. methylotrophicus, and B. amyloliquefaciens were the dominant strains. The selected strains were capable of fermenting glucose, lactose, sucrose, and garlic polysaccharide to produce acid but no gas, with a strong ability of heat resistance. The results indicated that there were a certain number of garlic endophytes during the black garlic processing, and Bacillus was the dominant strains under the conventional culture-dependent methods.
  4. Qiu Z, Li N, Lu X, Zheng Z, Zhang M, Qiao X (April 2018). "Characterization of microbial community structure and metabolic potential using Illumina MiSeq platform during the black garlic processing". Food Research International (Ottawa, Ont.). 106: 428–438. doi:10.1016/j.foodres.2017.12.081. PMID 29579944.
  5. Benwick, Bonnie S. (2009-02-25). "Black Garlic, the Next 'It' Thing". The Washington Post. p. F04. Retrieved 2009-03-01.
  6. Nerenberg, Kate (2009-02-05). "Top Chef Recap: Return of Ripert". Retrieved 2009-03-01.
  7. "Zwarte knoflook zonder vieze adem". HLN. 2009-03-01. Retrieved 2009-03-01.
  8. "Black Garlic Hits UK Market". Freshinfo. 2009-02-26. Retrieved 2009-03-01.
  9. Edgar, James (7 May 2014). "Ancient "black garlic" recipe found by farmer". The Telegraph. Retrieved 13 September 2014.
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