Different portions of minced meat are warmed up in a hot water bath to different temperatures from 50 to 80 °C and immediately cooled down in iced water. The meat is filtered and the colour of the supernatant is evaluated.
The protocol is simple and the results are visually evaluated.
Pre-knowledge and skills required by students
Time taken in lesson
Specialist equipment and materials required
All of the ingredients for this work may be obtained in a supermarket or market.
Context where originally used
The experiment is used in a more quantitative way in laboratory courses for food chemistry students of Copenhagen University, Department of Life Sciences. Here, it has been adapted for used by secondary school students.
Claudia Girnth-Diamba, Karen Lunden, Liselotte Unger, Hanne Thomsen, Lone Brinkmann Sørensen, Lykke Thostrup, Michael Bom Frøst and Marie Kielsgaard. (University of Copenhagen, Faculty of Life Sciences, Association of Danish Biologists and the Chemistry teachers' association).
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