How It’s Made Eggs

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How It’s Made Eggs

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[How It’s Made Eggs]

[Sciencechannel.com:] Source: LYBIO.net
Hens don’t have to mate to lay eggs and as long as there is no rooster in the vicinity, the eggs will remain unfertilized and edible. The color of the shell is determined by the breed of hen. But there is now pecking order when it comes to shell color, white or brown, all eggs are the same inside.

The action begins in the henhouse where female chickens start laying eggs when they’re 19 weeks old. The building is well ventilated and the temperature and humidity are strictly controlled.

To stimulate laying, fluorescent lightning simulates 15 hours of daylight. The hens eat a measured amount of food three times a day. Their feed is made up of various grains mixed with soybeans for protein. It’s fortified with vitamins and minerals and contain calcium to strengthen the egg shells. The hens drink water from nipple ended tubes attached to their cages.

All these carefully monitored conditions are designed to maximize the yield. The average hen lays about 300 eggs a year. The cage floor is sloped so the eggs automatically roll onto a conveyer belt. Then it’s on to a larger conveyer belt, which transports the eggs to the packing room. The hens manure drops through the bottom of their cages onto a conveyer below. Even so, some eggs get dirty. They’ll be thoroughly cleaned and disinfected later on.

Automated equipment transfers the eggs onto plastic flats and it places them wide-end up to keep the yolks properly centered. The flats go into a cold room until a refrigerated truck ships them to the grading station whose job is to classify the eggs by quality. The best, grade A, end up on supermarket shelves. Lesser grades go to processing plants to be turned into ingredients used in foods, pharmaceuticals and products such as shampoos. This automated station is high-tech and high-speed, processing 144,000 eggs per hour.

First a suction machine lifts the eggs off the flats and transfers them onto a moving track leading to the cleaning station. There a washer gently scrubs the eggs with soap and disinfectant. The water is just over 100 degrees Fahrenheit, anything hotter would cook the eggs. Then it’s into a dryer for five seconds where a fan sucks up the moisture. The eggs then pass over a bright light which highlights the condition of the shells.

[Sciencechannel.com:] Source: LYBIO.net
Workers do a preliminary visual inspection removing any that are cracked. A grading camera above accesses the condition and quality of the shell’s exterior. Further down the line, other cameras will inspect the interior for blood. To check the strength of the egg shells, acoustic sensors tap on the eggs. They detect brittle shells by the different sound of the tap. The inspection machines mark and reject any egg that doesn’t make the grade, grade A that is. The approved eggs move on to electronic scales, which register their weight class from Peewee to jumbo.

Pressure-controlled claws then transport them to the corresponding packaging line. On the way, every egg gets stamped with a lot number for quality control tracking. The packing machine stamps the egg cartons with the best-before date. The eggs have a shelf life of 35 days. As for the hens, their expiration date comes at 72 weeks, when the eggs they lay are no longer consumption quality. For all their hard work they win an all expenses paid trip to the slaughter house.

How It's Made Eggs

How It’s Made Eggs

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How It’s Made Eggs. For all their hard work they win an all expenses paid trip to the slaughter house. Complete Full Transcript, Dialogue, Remarks, Saying, Quotes, Words And Text.

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