Human blood can be made into bio-plastic. It is dried, powdered, moulded into a shape, heated to 200 degrees Celsius and put under 10 tonnes of pressure. It might become an ornament or a bowl or a drinking cup.
But what if a person with the HIV virus had donated the blood in the bio-plastic? Would you touch it, eat from it, drink from it?
Science says you shouldn’t be at all bothered. The bio-plastic will be completely sterilised once heated to 120 degrees. But would you hesitate?