Food Science. What’s in your food?. Learning objectives. Understand what food additives are and why they are used. Preservation. Need to make food last longer – preserve it Salt (remove water) Vinegar (pickling) Alcohol (kill microbes) Knowledge of chemistry
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What’s in your food?
Stop food reacting with oxygen
Gives a certain taste or smell
Enhancers – MSG
Help foods mix
E220 is sulphur dioxide (preservative)