Tuesday, March 30, 2010

What Happens When You Cook Eggs

When you heat a whole egg, its protein molecules behave exactly as they do when you whip an egg white. They unfold, form new bonds, and create a protein network, this time with molecules
of water caught in the net. As the egg cooks, the protein network tightens, squeezing out moisture, and the egg becomes opaque. The longer you cook the egg, the tighter the network will
be. If you cook the egg too long, the protein network will contract strongly enough to force out all the moisture. That is why overcooked egg custards run and why overcooked eggs are rubbery.

If you mix eggs with milk or water before you cook them, the molecules of liquid will surround and separate the egg's protein molecules so that it takes more energy (higher heat) to make the protein molecules coagulate. Scrambled eggs made with milk are softer than plain scrambled eggs cooked at the same temperature.

When you boil an egg in its shell, the air inside expands and begins to escape through the shell as tiny bubbles. Sometimes, however, the force of the air is enough to crack the shell. Since there's no way for you to tell in advance whether any particular egg is strong enough to resist the pressure of the bubbling air, the best solution is to create a safety vent by sticking a pin through the broad end of the egg before you start to boil it. Or you can slow the rate at which the air inside the shell expands by starting the egg in cold water and letting it warm up naturally as the water warms rather than plunging it cold into boiling water--which makes the air expand so quickly that the shell is virtually certain to crack.

As the egg heats, a little bit of the protein in its white will decompose, releasing sulfur that links up with hydrogen in the egg, forming hydrogen sulfide, the gas that gives rotten eggs their distinctive smell. The hydrogen sulfide collects near the coolest part of the egg--the yolk. The yolk contains iron, which now displaces the hydrogen in the hydrogen sulfide to form a green iron-sulfide ring around the hard-cooked yolk.

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Kitchcraft Waterless Cookware Demo with Guest Chef Charlie Abbate - Part 5

Guest chef Charlie Abbate shows you how to cook with no water.

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Terracotta Clay Bakers Bakeware Care Guide

Many consumers have emailed me on the use and care of terracotta cookware. They have said: "OK, I purchased my clay bakeware, now what?"

Excellent question and I will try and help.

Before using your terracotta cookware for the first time, wash thoroughly with hot water. Do not us soaps.

Each time you use your clay bakeware, immerse both the top and base in cold water for about 15 minutes. Pour off excess water. After adding all the ingredients place your terracotta bakeware in the center of a COLD oven.

DO NOT ADD COLD LIQUIDS once the clay cookware is hot.

DO NOT PLACE your terracotta bakeware over on open flame or hot cooking plate.

Regular recipes can be converted for clay pot cooking by increasing the cooking temperature by 100F and deducting one-half hour of cooking time.

Terrcotta bakeware is ideal for the microwave. Because microwave ovens vary to such a great degree, use the oven manufacturer's guidelines for cooking times.

Take care not to shock by clay pot cookware by moving it from one extreme temperature to another.

Use pot holders or oven mitts to move your terrcotta bakeware when hot, and place it on a trivet, mat or folded dishtowel when moving it out of the oven.

Cleaning after use: use hot water only, and a stiff natural bristle or mylon brush, or a nylon scouring pad to clean your clay pot cookware after each use. DO NOT USE SOAPS. A little baking soda will cut any grease. Never use cold water when the terracotta bakeware is hot.

When not in use, keep your clay cookware in a place where the air circulates. Place lid upside down on top of base when storing, to allow air to circulate inside the bottom of the roaster.

Use one clay pot cookware for fish and a separate one for meats, to keep the flavors separate.

In summary:


Hand wash your terracotta bakeware in hot water with some baking soda and a nylon or natural bristle pad or brush.
Do not wash with soaps or detergents.
Always place your clay pot cookware in a COLD oven.
Take care to avoid extreme temperature changes, ie. placing it in a hot oven.
Never pour hot liquids into a cold clay pot cookware, or cold liquids into a hot terracotta bakeware.
Always pre-soak for 15 minutes.
Avoid open flame or hot plate.

Clay pot cooking saves time, reserves nutrients and vitamines, avoids excess fats in cooking.

Terracotta bakeware for healthy natural cooking.

One of the best holiday meals I have tasted recently was baked in a clay pot.

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