Blood is made up of fluid (essentially, water with some electrolytes) and cells floating around in the fluid (red blood cells, white blood cells, etc). Milk is also mostly water, with some fats and protein. The water is the only thing that would evaporate out of the solution when heated. Heat it for long enough though and you’d probably destroy the red blood cells and white blood cells into little bits.
Reasonable_Dealer991 t1_ixyz7yy wrote
Reply to eli5 Does the blood in cow milk evaporate if you boil it long enough or turn it into condensed milk? by [deleted]
Blood is made up of fluid (essentially, water with some electrolytes) and cells floating around in the fluid (red blood cells, white blood cells, etc). Milk is also mostly water, with some fats and protein. The water is the only thing that would evaporate out of the solution when heated. Heat it for long enough though and you’d probably destroy the red blood cells and white blood cells into little bits.