DIY Black Garlic in a Slow Cooker

Black garlic has its roots in ancient Korea around 2004 AD. It’s delicious with an amazing caramelized flavor. While many people (and Websites) claim it’s a fermented product, the reality is that it’s actually just slow cooked at 140f. At these temperatures, the cultures required for fermentation won’t survive. What you’re left with is the product of the milliard reaction which gives this its signature color.

DIY Black Garlic in a Slow Cooker

Prep Time: 5 minutes

Cook Time: 720 hours

DIY Black Garlic in a Slow Cooker

Garlic while in the cooker


  • 4 Pounds Whole Garlic


  1. Place in slow cooker.
  2. Plug slow cooker into temperature controller with probe in the center of the crock and the slow cooker set to "Low".
  3. Wrap slow cooker in plastic wrap.
  4. Maintain temperature at ~140f for 30-40 days.
  5. After the specified time, take the garlic out and let it air dry.
  6. Store in a cool place (refrigerator) or freeze for long term storage.
Recipe Management Powered by Zip Recipes Plugin


Unless you enjoy the overwhelming aroma of garlic, operate this outside of your living space. Mine is running in the garage. Other webpages suggest wrapping the garlic in foil, that is absolutely unnecessary. My first batch was produced with the slow cooker on High but this was a mistake. The high temperature swings overcooked some of the cloves at the bottom of the crock. Be sure to use the Low setting.


1 Comment on DIY Black Garlic in a Slow Cooker

  1. OMG, there are 7 times that I tried to make black garlic, but all are disappoint.
    This time I hope I’ll be sucess. Let’s see. Hope see you again. Respecfully,

Leave a Reply

Your email address will not be published.