cooking methods

Quick Review: The "Big Five" Reasons

to cook food include flavor enhancement, food safety, nutritional value, texture modification, and convenience.

Memory Tip: Remember the acronym S.T.A.V.E. — Safety, Texture, Aroma (Flavour), Variety, Extended shelf life.

These are the primary considerations for selecting cooking methods.

2. How Heat Travels: The Science of Cooking

Heat travels through conduction, convection, and radiation during cooking, impacting how food cooks and its final texture and flavor.

Heat doesn't just "appear" inside a potato; it has to travel there. There are three ways heat moves. Think of these like three different ways of passing a ball to a friend.

A. Conduction (Direct Contact)

Conduction is heat moving through solid objects or by direct contact. When a pan sits on a hot hob, the heat moves from the hob to the pan, and then directly into the food.

Analogy: This is like a "handshake." You have to be touching to pass the heat along.

B. Convection (Circulating Currents)

Convection happens in liquids (like water) or gases (like air). When the air or water is heated, it rises, cools down, and then sinks, creating a "circular" movement that cooks the food.

Analogy: This is like a "hot air balloon" ride inside your oven or saucepan.

C. Radiation (Waves)

Radiation is heat traveling in invisible waves. There is no direct contact needed. This is how a grill or a toaster works.

Analogy: This is like "sunbathing." You feel the heat from the sun even though you aren't touching it.

Did you know? When you make a sauce in a pan, both conduction (from the pan) and convection (within the liquid) are working together! That’s why you need to stir (agitate) the sauce to keep the heat even and stop it from sticking.

3. Water-Based Cooking Methods

These methods use water or steam to transfer heat. They are generally very healthy because they don't require added fat, but be careful—some vitamins can "leak" into the water!

Boiling: Cooking food in gently bubbling water at 100°C. Great for pasta or potatoes.

Simmering: Like boiling, but at a lower temperature with smaller bubbles. This is gentler and prevents food from breaking up.

Steaming: Food is held above boiling water and cooked by the steam. Steaming is the best way to keep vitamins in vegetables because they never touch the water!

Poaching: Cooking delicate foods (like eggs or fish) in liquid below boiling point (about 80°C).

Blanching: Plunging food into boiling water for a very short time, then "shocking" it in cold water. This stops enzymes from spoiling the food before freezing.

Braising: Cooking food slowly in a sealed pot with a small amount of liquid. It’s perfect for making tough cuts of meat tender.

Quick Review: Water-soluble vitamins (Vitamin B and C) are like little swimmers—if you boil vegetables for too long, the vitamins swim out of the food and into the water!

4. Dry Heat and Fat-Based Methods

These methods usually use higher temperatures and often involve fat (oil or butter) to add flavour and crunch.

Dry Heat Methods

Baking: Cooking food using dry heat in an oven (Convection).

Roasting: Similar to baking, but usually at a higher temperature and often using fat to coat the food (like roast chicken or potatoes).

Grilling: Using Radiation to cook food quickly. It’s great for browning the surface of the food.

Fat-Based Methods

Dry Frying: Cooking food that already contains natural fat (like bacon or minced meat) in a pan with no extra oil.

Shallow Frying: Cooking food in a pan with a small amount of fat or oil.

Stir Frying: A very fast method using a Wok and a small amount of oil. Because it's so quick, it keeps the vegetables crunchy and preserves more vitamins than boiling.

Don't worry if this seems tricky! Just remember: if it uses a lot of water, it's water-based. If it uses an oven or grill, it's dry heat. If it uses a frying pan, it's fat-based.