In brief: Black garlic is not a separate variety but aged garlic produced in a process resembling fermentation under controlled heat and humidity. Colour, flavour and some compounds change during the process.
What changes during ageing?
| Feature | Change |
|---|---|
| Colour | Darkens to black |
| Taste | Sweeter and less pungent |
| Texture | Softer and stickier |
| Compounds | Some sulphur compounds and antioxidant markers change |
What do human studies show?
Small trials have examined blood pressure, lipids and oxidative-stress markers, but evidence is insufficient for broad claims about heart protection, cancer prevention or anti-ageing. Food use must be distinguished from concentrated extracts.
Kitchen use
Black garlic works well in sauces, dressings, spreads and savoury dishes because of its mild sweet-umami flavour, which allows it to be used differently from fresh garlic.
FAQ
Is black garlic fermented?
It is mainly produced through controlled ageing under heat and humidity.
Is it healthier than fresh garlic?
A general clinical superiority is not established.
Is it still pungent?
Usually much milder and sweeter.
Can it replace medication?
No.
Conclusion
Black garlic is primarily an interesting food with a distinct flavour. Health claims should remain more cautious than marketing often suggests.
