Chaga extraction in sap

The Chaga extraction process

 it takes about 40 gallons of maple sap to make 1 gallon of syrup, and that extra 39 gallons needs to be boiled off in a large shallow pan, we recognized that we could simply add the dried chaga mushrooms to the sap and boil it for 2-4 hours, before straining it out and continuing with the syrup-making process. This results in a syrup that is also a concentrated, decocted extract of a medicinal mushroom. 
As a daily immune-enhancing tonic, it is recommend 1 to 2 bottles of mapleaqua per day. For those with cancer clinical studies from Japan indicate that 2500 milligrams twice per day, is an effective dose.
The Chaga mushroom decoction is concentrated into the maple syrup at the rate of 960 grams (2.1 lbs.) of dried mushrooms to one gallon, which equals 1250 mg per teaspoon  

Maple syrup is the ideal medium to carry these extracts because 

• the concentrated sugars act as a natural preservative.
• it makes the extract delicious 
• the process of extraction can be integrated into the syrup-making process. 
Chaga needs to be boiled for a prolonged period of time in order to extract the constituents, particularly the polysaccharides, into the water and make them available for consumption.

This type of boiled extraction is known as a decoction, and it is the traditional method to consume these medicinals.
Furthurmore, current scientific research proves this to be an effective extraction technique, and most published clinical studies, which test the safety and efficacy of medicinal mushrooms, use hot-water extractions.