Microorganisms begin to reproduce on the food and digest it, releasing harmful toxins as byproducts of their activities. This leads to:
Release of nice aroma from food
Food enhancement
Food spoilage
Improvement in food value
The release of harmful toxins by microorganisms causes spoilage of food.
Why should you always wash your hands before handling food and after coming from the toilet?
Answer: many people touch object in the washroom with their dirty hands like after sneezing or after coming from outside. This leads to spreading of germs or tiny organisms which cannot be seen through naked eyes known as microorganism. As the washroom are warm this may lead to rapid growth of microorganism. After we use the washroom these microorganism may still remain in our hand so if we handle the food without washing our hands there are chances that these microorganism might enter our body which may harm our body. Hence it is advisable that we should wash our hands after coming from the washroom before handling food.
Microorganisms are always harmful to humans.
Dumping of large quantities of biodegradable pollutants in a stream, leads to undesirable growth of microorganisms and plankton. This phenomenon is called