Hemoglobin: The oxygen-carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygenated state it is called oxyhemoglobin and is bright red.
Caffeine by McDonalds Iced Coffee Size. 1  Medium (16 floz): 133mg. 2  Large (22 floz): 200mg. 3  Extra Large (32 floz): 320mg.
Our caffeine numbers come to about 80 mg of caffeine per oz of cold brew concentrate. Our mix ratio for use is 1 part concentrate to 2 parts milk or water. Typically, a 16oz cup of iced coffee would be 3 oz concentrate, 6 oz milk/water plus ice to fill cup. 240mg of caffeine. It is, however, totally dependent upon the user and how they make their drink.