Blood
The colour of blood should not be taken for granted. It needs thought and research. Arterial blood is brighter than venous blood because it is oxygenated and congealed blood turns darker the longer it is left. Blood can be bought ready-made in both light and dark colours but consideration must be given to staining; some blood products will stain both skin and clothes. It is important for costume staff to check with make-up about staining if blood is being used.
To make your own, commercial blood can be mixed with water and red and yellow food colouring. The thickness can be varied by adding flour or glycerine or clear syrup to make it more viscous. Adding black treacle, more flour or crushed breadcrumbs will create congealed blood. Adding ...
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