Moro blood oranges have the most consistent red flesh color and greatest fruit yield among blood oranges. While sufficient for juicing, the Sanguinello is the juiciest blood orange. It can be said that Moro blood oranges are the bloodiest of blood oranges.
These oranges need cooler weather in order for the blood color to appear. This is evident when comparing how they grow in Florida versus a hot season in Southern California. An orange may be completely ripe but show very little red color in Southern Cali because of the temperature.