I just want to show you the step by step you'll make during the following week.
Step 1 :
Strain the chestnuts.
Step 2 :
High fire. When it boils, let it for 5 minutes.
Step 3 :
After those 5 minutes, soak once again the chestnuts in their basket and let them, on a low fire for 3 minutes.
Stop the fire and let them settle for 24 hours again.