How to make Chaga extract or Chaga tea in a slow cooker - Boreal Botanical Brewing Company
chaga tea in a cup

How to make Chaga extract or Chaga tea in a slow cooker

A couple of months ago we shared our perfect extraction method to make chaga tea using hot water extraction.

The method uses a sous vide machine. That’s what we do in the brewery when we need to make small amounts of chaga extracts for testing purposes,

We are huge fans of these machines because they keep water at a very precise temperature for a long time. If you’re after consistency, there is nothing that can beat them. Sous vide machines can be purchased for less than $200 these days. We think they are a worthy investment.

Having said that, we totally get that not everybody wants to drop that kind of money on a small kitchen appliance – but you still want to make the perfect chaga tea.

Testing chaga tea in a slow cooker

So to make things easier, and more affordable, we tested if we could make chaga tea in a slow cooker. Slow cookers heat to about 190º (Fahrenheit) on the low setting. The best way to find out how hot yours get is by using a thermometer, but it should be between 170 and 190º. This is slightly higher than our preferred temperature of 160º that we use with the sous vide – but after a number of test batches, we were happy with the resulting chaga extracts.

By reducing the extraction time from 10 hours at 160º in the sous vide to 6 hours at 190º in a slow cooker we managed to achieve comparable results.

There are two ways to make chaga in a slow cooker. You can either just add your chaga chunks (read why you should always buy chunks here) to the slow cooker and fill with water at a ratio of 25g/0.9oz chaga to 1 litre/4 cups of water. That’s perfectly fine and works if your slow cooker is wide and shallow, but filtering might be a little difficult.

Using a mason jar

If you have a tall and deep slow cooker, deep enough to hold a 1-litre mason jar, then we prefer to put our chaga into mason jars. We then fill the jars with hot, but not boiling, water and use the slow cooker as a hot water bath for the mason jar.

This makes filtering out the chaga super easy – and remember, it can and should be reused up to four times. Just put it in a freezer bag or box and keep it in the freezer until the next time you want to make chaga tea.

Of course, the easiest way to get your regular chaga fix is by visiting our store and purchasing our Lively Chaga Black botanical tonic.

The perfect chaga tea in a slow cooker

Make the perfect chaga tea using a slow cooker
Prep Time5 mins
Cook Time6 hrs
Course: Drinks


  • Slow Cooker
  • Fine mesh colander
  • Mason jar


  • 25 g Chaga Chunks
  • 1 Litre Filtered Water


  • Put your chaga into the slow cooker, or mason jar.
  • Add hot, but not boiling water.
  • Leave to extract for 6-8 hours – either in the slow cooker alone, or the mason jar in the slow cooker.
  • If you are using mason jar, put the desired amount of hot water into the mason jar, then put the mason jar into the slow cooker and fill the slow cooker with hot water.
  • Using a fine mesh colander, filter out the Chaga and freeze until you will use it again.
  • Keep the chaga extract/tea in the fridge for up to five days, consume as desired.

Visit our store

Chaga botanical tonic 6 pack

Lively Chaga Black brewed botanical tonic, 6 pack

Chaga botanical tonic 12 pack

Lively Chaga Black brewed botanical tonic, 12 pack

reishi six pack sold out

Relaxed Reishi White brewed botanical tonic, 6 pack

Relaxed Reishi White brewed botanical tonic, 12 pack

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