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Food Processing: Cleaning and Contamination

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Food Processing: Cleaning and Contamination

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Questions and Answers

What is the term used to describe the removal of smaller particles from larger food units?

Aspiration

Scalping

De-dusting (correct)

Abrasion

Which cleaning method is based on the aerodynamic properties of the food and contaminants?

Wet cleaning

Aspiration (correct)

Electrostatic cleaning

Magnetic cleaning

What is the purpose of using magnetic cleaning in food processing?

To remove ferrous metals (correct)

To separate food grains from each other

To remove non-ferrous metals

To remove soil from food

What is the limitation of electrostatic cleaning in food processing?

It is limited to a few cases where surface charge on raw materials differs from contaminating particles Signup and view all the answers

What is the main reason why wet cleaning methods are expensive?

They require large quantities of high purity water Signup and view all the answers

What is the primary function of aspiration in food processing?

To separate denser material from lighter material Signup and view all the answers

What is the primary benefit of using electromagnets in magnetic cleaning?

They are easier to clean than permanent magnets Signup and view all the answers

What is the purpose of metal detectors in food processing?

To protect consumers and processing machinery Signup and view all the answers

What is the primary limitation of wet cleaning methods?

They require large quantities of high-purity water Signup and view all the answers

What is the principle behind electrostatic cleaning?

Differences in surface charge Signup and view all the answers