4th December 2019

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What are the main causes of food spoilage?

Microbial spoilage is caused by microorganisms like fungi (moulds, yeasts) and bacteria. They spoil food by growing in it and producing substances that change the colour, texture and odour of the food. Eventually the food will be unfit for human consumption.

Accordingly, why does food go bad in the fridge?

Most bacteria that cause spoilage grow optimally between room temperature and body/blood temperature. So the reason why food doesn't go bad as easily in the fridge as opposed to when it's kept outside is because it's too cold for them! So they can still spoil food.

How does our food go bad?

"Going bad" can refer to the effects of bacteria, molds and yeasts; of heat; of oxidation from exposure to air; or of enzymes in the foods themselves. Not to spoil your appetite, but all foods will eventually spoil, rot, decompose, disintegrate, crumble, putrefy or turn rancid.

How does bacteria cause food to spoil?

Under the correct conditions, spoilage bacteria reproduce rapidly and the populations can grow very large. In some cases, they can double their numbers in as little as 30 minutes. The large number of microorganisms and their waste products cause the objectionable changes in odor, taste, and texture.