Principles of Food Preservation and Storage

Which is NOT a reasons for preserving food?

• Prevent wastage

• Maintain its nutritive value and make food preparation easier and quicker

• To increase the price of a product

Why is dehydration a good way of preserving food?

• Bacteria cannot survive in low moisture conditions
• Drying food make it hard so it lasts longer
• Drying food destroys the enzymes that cause food to go brown

Where should dried foods be stored?

• In the fridge
• In an airtight container
• In the freezer
• In the pantry

The addition of which ingredients reduces the moisture in foods?

• Salt and smoke
• Smoke and sugar
• Brine and smoke
• Sugar and salt

What is brine?

• A salty water solution
• A sweet water solution
• Seawater

When making jam, what proportion of fruit to sugar is required to prevent the growth of micro-organisms?

• 10% fruit to 90% sugar
• 90% fruit to 10% sugar
• 50% fruit to 50% sugar
• 40% sugar to 60% fruit

Which of the following foods does NOT use moisture levels to control microbial growth?

• Beef jerky
• Frozen peas
• Apricot jam
• Corned beef

Which of the following is a chemical preservative?

• Potassium nitrate
• Potassium acid
• Sodium bicarbonate
• Nitric bicarbonate

Sugar and salt are examples of preservatives

• True
• False

Consumers have no way of knowing if chemical preservatives are added to foods

• True
• False