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Black garlic

Black garlic is garlic that has been aged under controlled heat and humidity until the cloves turn dark brown or black.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Black garlic is garlic that has been aged under controlled heat and humidity until the cloves turn dark brown or black. The process changes its texture and flavour, making it softer, sweeter, and less pungent than raw garlic. It is used as a culinary ingredient and has also been studied for its bioactive compounds and antioxidant content.

Production

Black garlic is made by keeping garlic in a warm, humid, controlled environment for several weeks. During this time, the cloves darken and develop their characteristic flavour and texture.

Characteristics

Compared with raw garlic, black garlic is milder, sweeter, and less pungent. The cloves are typically soft, chewy, and sticky, with flavours often described as savoury or umami.

Culinary use

Black garlic is used as a flavouring ingredient in savoury dishes and increasingly in modern cuisine. Reported uses include sauces, salads, dressings, marinades, meats, chocolate, and ice cream.

Health and research

Black garlic has been studied for antioxidant and bioactive compounds formed during ageing. Published reviews note potential biological effects, but these findings do not make it a medically proven treatment or cure.

Key facts

  • Black garlic is not a separate garlic variety; it is regular garlic that has been aged under controlled conditions.
  • Its dark colour develops during a Maillard reaction caused by heat and humidity.
  • The ageing process gives it a sweeter, milder flavour and a softer texture than fresh garlic.
  • It is used in a wide range of foods, including sauces, dressings, marinades, meats, and desserts.
  • The product has attracted scientific interest because it contains antioxidant and other bioactive compounds.
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Canadian context

Black garlic is available in Canadian food retail and specialty culinary markets, and Canadian recipe and food-writing sources discuss its use as a premium condiment and ingredient.

Frequently asked questions

Is black garlic a different type of garlic?
No. It is regular garlic that has been aged under controlled heat and humidity.
Why is black garlic black?
Its colour develops during the ageing process, which triggers Maillard reactions in the cloves.
What does black garlic taste like?
It is usually described as sweet, savoury, and umami, with less sharpness than raw garlic.
How is black garlic made?
Whole garlic bulbs or cloves are kept in warm, humid conditions for several weeks until they darken and soften.
What is black garlic used for?
It is used in cooking as a flavouring ingredient in sauces, marinades, meats, salads, and some desserts.
Is black garlic commonly available in Canada?
Yes. Canadian culinary sources note that it is produced and sold in several Canadian provinces.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Black_garlic
    Supports: Basic definition, East Asian origin, ageing process, flavour, and culinary uses.
  2. Ricardo Cuisinehttps://www.ricardocuisine.com/en/articles/the-ingredient/2135-4-facts-about-black-garlic
    Supports: Controlled ageing process, flavour description, and availability in Canadian provinces.
  3. WebMDhttps://www.webmd.com/diet/health-benefits-black-garlic
    Supports: Aged garlic definition, Maillard reaction, colour change, and texture changes.
  4. Clemson University Home & Garden Information Centerhttps://hgic.clemson.edu/black-garlic-what-it-is-how-its-made-and-how-to-use-it/
    Supports: Black garlic as aged garlic, consumption in Korea/Japan/Thailand, and culinary uses.
  5. PubMed Centralhttps://pmc.ncbi.nlm.nih.gov/articles/PMC9333422/
    Supports: Controlled production conditions and review of bioactivity.
  6. Healthlinehttps://www.healthline.com/nutrition/black-garlic-benefits
    Supports: Ageing process, changes in flavour, and caution that health claims are not equivalent to medical proof.