1/3 Cup of coarse ground coffee for every 1.5 Cups of high quality filtered H20! 
 
Let it sit at room temperature 12-18 hours depending on your personal flavor preference...18-24 hours if you refrigerate right away. 
 
Next pour through a filter of your choice into your favorite container, some prefer to filter twice. You now have ready to drink coffee. Add ice, milk, water, or cream of your choice to taste.
 
Refrigerate and it should last a week or so.
 
Enjoy!