Break one medium size coconut and scrape out the complete coconut.
Add freshly scraped coconut and 1 cup of warm water in your blender and blitz it for few seconds. Strain it through a thin muslin cloth to extract the coconut milk. The first lot will be thick milk.
Now again add the scraped coconut with 1 cup warm water in your blender, blitz it and extract the second cup of coconut milk which will be thinner compared to the first cup of coconut milk.
Do not discard the scraped coconut after extracting milk. You can use it to make coconut chutney.
You can refrigerate and store this milk for upto 5-7 days.