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  • Home
  • About the EPF
    • EPF Membership
    • Useful Links
    • Contact Us
  • NZ Egg Farming
    • Egg Farming Types
    • Layer Hens & Caring for Hens
    • NZ Farming Standards
    • Interested in Starting a Commercial Egg Farm?
    • The Code of Welfare (updated 2018)
  • NZ Egg Industry Key Statistics
    • NZ Annual Egg Consumption Per Capita
    • NZ Import/Export Statistics
    • Food Item: Protein Cost Per Gram Comparisons
  • Information & FAQs
    • Latest News
    • High Pathogenicity Avian Influenza (HPAI)
    • Nutrition and Health Benefits
    • Ensuring Quality Eggs for all New Zealanders
    • Egg Labelling
    • Eating & Cooking
    • Quick Facts & FAQ’s
    • Educational Resources
    • Research Papers and EPF Reports
    • Glossary
Main Menu
  • Home
  • About the EPF
    • EPF Membership
    • Useful Links
    • Contact Us
  • NZ Egg Farming
    • Egg Farming Types
    • Layer Hens & Caring for Hens
    • NZ Farming Standards
    • Interested in Starting a Commercial Egg Farm?
    • The Code of Welfare (updated 2018)
  • NZ Egg Industry Key Statistics
    • NZ Annual Egg Consumption Per Capita
    • NZ Import/Export Statistics
    • Food Item: Protein Cost Per Gram Comparisons
  • Information & FAQs
    • Latest News
    • High Pathogenicity Avian Influenza (HPAI)
    • Nutrition and Health Benefits
    • Ensuring Quality Eggs for all New Zealanders
    • Egg Labelling
    • Eating & Cooking
    • Quick Facts & FAQ’s
    • Educational Resources
    • Research Papers and EPF Reports
    • Glossary

Ensuring Quality Eggs for all New Zealanders

Home » Information & FAQs » Ensuring Quality Eggs for all New Zealanders

Egg Processing

Before grading and packing, eggs must go through several quality control processes. One of these processes is called ‘candling’, where a bright light is shone through the eggs to identify any internal or external spots or cracks. Those eggs are removed and often used for liquid or dry egg mixtures.

After candling, the eggs are then sent on to the packing unit where they are graded by size (ranging from 4 to 8) and then packed ready for dispatch.

Factors Affecting Egg Quality

How to choose eggs

  • Always check inside the cartons for cracked eggs before purchasing.
  • Do not purchase any eggs that are cracked or soiled eg feathers or droppings on the shell.
  • A rough shell with pinhead-sized lumps could be from an older hen or one that has too much calcium in its diet. These lumps could rub off and leave holes in the egg. If the shell is completely intact, the edible egg is not affected by the rough shell and is safe to use.
  • If an egg is irregular with a flat side it means it was probably disturbed during laying. This does not affect the egg’s quality.
  • Inside the egg, blood spots can sometimes occur. If these are visible they can easily be removed by the cook and used as normal. TIP: Using a part of the cracked eggshell to scoop it out works well.

Is one type of egg better than another?

Studies have found little difference in the nutrient quality of eggs from different farming methods.

Yolk Colours? The colour of the yolk inside an egg is determined by the presence of certain substances called “carotenoids.”

Despite what you may read or hear, there is no difference in nutritional content or taste of a pale yolk vs a darker yolk. The colouration depends on the diet of the chicken that lays the egg. A chicken with a diet high in carotenoids produces a darker yolk.

Egg Composition Husbandry Systems

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About the Egg Producers Federation

The Egg Producers Federation of New Zealand Inc.
(EPF) represents the interests of all the commercial
egg farmers and producers in New Zealand.

Egg Producers Federation of New Zealand (Inc)
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