How to make fake blood for a safe lab skills practical
To make fake blood for a safe lab skills practical, make a solution with following ingredients and proportions:
10% golden syrup
50% sesame oil
Add 10 drops of red food colouring
The solution will naturally separate so give it a gentle shake.
Once shaken it will look like this.
You can then decant the blood into blood tubes. They are now ready for centrifugation.
After centrifugation you get a very realistic sample that separates like blood to practice pipetting.
Note of caution: this solution is very oily so be careful not to get any on your clothes.