Perishable. Keep refrigerated. Shake well. Simply pour over ice and enjoy. This makes a very strong, flavorful iced coffee. Our secret brewing process creates a smooth, rich cup of coffee without bitterness. It is definitely not a cold brew. We brew it hot, under nitrogen pressure, in small lots, at the perfect temperature to extract all of the essential elements from our carefully selected coffee beans. You may wish to adjust the strength to your own taste. Black Medicine Iced Coffee is about 50% stronger and more intense than a normal cup of coffee.