Microwave Magic: Crispy Chips, Caramel & More! (Easy Recipes & Science)

Welcome to Magpie! Today, we're diving deep into the world of microwave ovens, debunking common myths, and unlocking their culinary potential with easy and surprising recipes. We'll explore microwave oven theories and create delicious snacks using this often-misunderstood appliance.

Dispelling Microwave Oven Myths

Common Misconceptions

Microwave ovens often elicit strong reactions. Younger generations see them as a quick way to heat up snacks, while older generations may view them with suspicion, even labeling them as "black magic." Chefs sometimes consider them a shortcut. No matter what someone believes about the appliance they all know to never put metal inside, yet the inside of the oven itself is metal.

Addressing Safety Concerns

The question "Aren't microwave ovens dangerous?" often arises. This stems from misconceptions and outdated beliefs. We'll delve into the science behind microwave oven operation to understand how they work and address safety concerns.

Understanding Microwave Oven Doors

Microwave oven doors are designed with a transparent glass panel and a mesh-like metal screen. This screen prevents microwave energy from escaping, acting as a barrier. The glass allows visibility of the food inside. The microwave can pass through glass, but not metal which is why there is metal mesh on the glass.

The Science Behind Microwave Heating

Uneven Heating

Microwave energy, specifically 2.45 GHz waves, doesn't distribute evenly within the oven. The way it heats is why food is not heated up evenly. The power settings on a microwave adjust the duration of on and off cycles rather than the actual power output. Think of it like a person using a battle rope that slams into the ground.

Demonstration: Starch and Water Experiment

To illustrate uneven heating, a mixture of starch and water can be microwaved in a shallow dish. After a minute, some areas will be cooked while others remain untouched, demonstrating the inconsistent heat distribution.

Adjusting Power for Even Heating

Lowering the power level allows the food to heat up slower. This also gives the food time to release its own heat, creating a more consistent temperature. The metal in the oven helps the microwaves bounce around the inside of the oven and helps heat more thoroughly.

Why Metal is Used Inside But Not Recommended to be Put Inside

Metal reflects microwaves, creating a more even heating environment within the oven. The container itself being metal as a shell vs. putting a metal fork inside makes all the difference.

Freedom Electrons

Metal should not be put inside of a microwave with a smooth surface, however, a rough surface can cause electricity to be conducted. Instead of being round and smooth, any sharp or jagged surface can push electrons out of the metal, which could create sparks, electricity, and fire.

Freedom Electron Experiment

To demonstrate the effect of free electrons, an example is two grapes that are split. Once they are split and microwaved they begin to conduct electricity. A flat sheet of metal is also heated up in the microwave, with no heat, and a crumpled sheet of metal begins to spark electricity in the oven.

Microwave Recipes: Culinary Creations

Crispy Potato Chips with Minimal Oil

Here's a recipe for crispy potato chips that require only a small amount of oil. The goal is to achieve a crispy, caramelized chip with controlled flavor and fat content.

Microwave Oven Frying

Microwave ovens can reach caramelization temperatures. Put oil on a ceramic plate, then crack an egg on top and microwave. This will create a fried egg with some caramelization.

Recipe

1. Thinly slice potatoes and pat dry.
2. Lightly brush the potato slices with oil.
3. Arrange the slices on a plate.
4. Microwave on medium power (50%) for 10-15 minutes, checking frequently.
5. Remove when the chips reach your desired color and crispness.
6. Season with spices like chili powder, salt, and MSG.

Microwave Safe Dishes

Microwave safe plates are usually a matte or dull finish. The shiny plates are sealed too tight. It is not recommended to microwave the shiny plates because they can explode.

Is it safe to heat a ceramic plate inside of a microwave?

Ceramic plates can be heated in a microwave. However, the plate must be specifically labeled as safe for microwave usage. There can also be traces of water inside the clay which can also cause an explosion.

Roundness of Metal Dishes

The smoothness of round metal dishes is the key to preventing explosions in the microwave. Freedom electrons need a jagged edge to spark. Starbucks metal heating dishes are metal and round.

The Mystery of Frozen Microwave Meal Packaging

Food in boxes can usually be heated, but the boxes themselves sometimes have a thin layer of metal on them. This is used to make the food extra crispy. At a nanoscale, it does not repel microwaves, but instead heats up very quickly.

Hot Dipping Sauce

Create a hot dipping sauce using the microwave. Combine oil and seasonings in a microwave-safe bowl. Microwave until hot, then add chopped ginger, garlic, sugar, salt, and MSG. A traditional oil based dipping sauce.

Caramel Recipe

Sugar is not a polar molecule, so how does it heat in a microwave? Sugar contains hydroxyl groups, which absorb microwaves and generate heat. The sugar heats very quickly once the water is gone.

Caramel Recipe

1. Combine sugar and a little water in a microwave-safe dish
2. Add corn syrup to prevent crystallization.
3. Microwave until the sugar melts and turns a light yellow color.
4. Remove from microwave and let cool to achieve a deep brown color.
5. Whisk in a tablespoon of unsalted butter.
6. Whisk in salt to taste.

The information presented here is based on experimentation, observation, and understanding of the principles behind microwave oven operation. Thank you for watching!