Frequently paired with: ham, bacon, ground pork, corned beef, flaked tuna, onions, mushrooms, potatoes, scallions, etc.
Economical, highly nutritious, and easy to store and transport.
Learning Objectives (as stated in the lesson)
Define eggs and list their characteristics.
Explain nutritive value and list component parts.
Enumerate methods for testing freshness.
Identify market forms and culinary uses.
Definition & Key Characteristics
Eggs = edible poultry products from chickens, ducks, quails (primary focus) and other birds.
Chicken eggs: most widely consumed (often referred to as “unclassified eggs”).
Duck eggs: widely sold as salted egg (itlog na maalat), balut, penoy.
Quail eggs: popular street food; often boiled, batter-dipped, deep-fried; integral to dishes such as chopsuey, embutido, bird’s-nest soup w/ shrimp & quail eggs, picadillo, & veggie salads.
Parts of an Egg
Shell – hard, porous (CaCO3) layer; gas exchange for embryo; protective coating.
Shell membranes – thin inner & outer films visible when peeling hard-cooked eggs.
Albumen (egg white)
≈57% of total egg weight.
High-quality complete proteins + riboflavin.
Yolk
Yellow/orange central sphere; ≈31% of total weight.
Contains fats, cholesterol, iron, vitamin A, other fat-soluble vitamins.
Chalazae – spiral cords that anchor yolk at center; ensure even cushioning.
Composition & Nutritional Value
Complete protein quality comparable to meat & dairy.
Vitamins: rich in A, D, E, K, B-complex (esp. riboflavin in white); lacks vitamin C.
Minerals: iron, phosphorus, trace elements.
Yolk: high iron + cholesterol (note for dietary planning).
Considered an “almost complete food” for all age groups.
Market Forms of Eggs
Fresh eggs – sold by size/weight (small, medium, large, extra-large).
Purchasing tip: if large eggs cost ≥15% more than medium, choose medium for economy.
Frozen eggs – industrial/bakery use; packaged as whites, yolks, or whole.
Dried eggs – “whole-egg solids”; convenient for mixes.
Preserved/processed eggs – salted, century, pickled, balut, etc.
Determining Freshness: Six Practical Methods
Gross Examination – visual check of shell color, shape, texture.
Candling – hold against strong light; fresh eggs show centered yolk, small air cell, no blood spots.
Clicking – tap two eggs together; fresh egg → bell-like tone.
Shaking – shake vertically; fresh egg = silent (no sloshing).
Water Test – place in ≈2L water; fresh sinks, stale floats.
Breaking Test – crack onto flat plate; fresh = thick, firm, clear white + high, rounded yolk that resists breaking.
Culinary Functions / Uses of Eggs
Aerating – whipping whites or whole eggs to trap air (e.g., scrambled eggs, meringues).