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Food Spoilage and Contamination (Moisture (How to prevent (Preserve by…
Food Spoilage and Contamination
Microorganisms
Bacteria, moulds and yeasts
Moisture
Reason
Need water for all their processes
How to prevent
Preserve by drying
Preserve with high sugar and salt
Food
Reason
Nutrients need energy to grow
How to prevent
Keep foods away from these sources
pH
Reason
Too acidic or alkaline can affect the growth
How to prevent
Preserve foods in acids
Time
How to prevent
Store, cook and cool foods quickly and correctly
Reason
Multiply every 10-20 minutes
Warmth
Reason
Grow and multiply rapidly when warm
Too cold growth slows down
Too hot destroys them
How to prevent
Cook food thoroughly
Do not leave in a warm room long
Cool left over food quickly