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How does cooking with direct heat affect the nutritional value of food compared to using indirect heat?
Direct heat, say from an open flame, emits photons of EM radiation of various wavelengths, from weak to strong. http://en.wikipedia.org/wiki/Electromagnetic_radiation
While the vast majority will be in the IR spectrum (not particularly strong), there will be hundreds of millions in the UV spectrum. UV-spectrum photons have the power to damage or destroy complex organic molecules present in food, and this may affect the flavour, or even damage or destroy the molecules in food which are good for us. It is also the cause of charring.
Indirect heat, where a flame or other heat source boils water, does not do this because the water absorbs the photons and transmits the heat to food immersed in the water by conduction. In short, damaging UV photons do not strike the food in this manner, and so fewer chemical reactions happen.
It is not just water that does this. For example, bread will never toast in a microwave because the mircowaves (holding a very weak position on the EMR scale) do not have the power to cause the chemical reactions which occur in a toaster.
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How does high altitude pressure cooking affect the cooking process and outcomes compared to traditional cooking methods?
High altitude pressure cooking affects the cooking process by increasing the boiling point of water, which helps food cook faster. This can result in more tender and flavorful dishes compared to traditional cooking methods.
Are blue eggs better for you compared to other types of eggs?
There is no significant nutritional difference between blue eggs and other types of eggs. The color of the eggshell does not affect the nutritional content of the egg. It is the diet of the hen that determines the nutritional value of the egg.
How work do habits affect success in cooking?
Work habits affect success in cooking because cooking is a disciplinary art. Habits will help cooking if they involve good speed, consistency, and cleanliness.
What regions of the body can be affected by nutritional disorders?
Nutritional disorders can affect any system in the body and the senses of sight, taste, and smell.
How does cooking ingredients affect plant growth?
There are many ways in which cooking ingredients affect plant growth. Cooking breaks down very important bonds of certain nutrients.
What is the nutritional content of food cooked in the microwave?
The microwave as a cooking instrument does nothing to change the nutritional value of food that isn't changed by cooking using another method. Microwaves themselves don't affect food's "worth" but the heat generated can make some modifications. It's the heat and not the heat source that may be liable for changing food's nutritional value. There is a solid group of folks who decry cooking as "damaging" to food and eat everything raw. For the rest of us, there is good news. Cooking doesn't strip food of all its nutritional value. Yes, some things are broken down during cooking (due to heat and not at all to the microwaves themselves). High heat and overcooking will take things (like water soluble proteins) out of food, but not all of them. Can the dish take a 20% cut in some of these more heat sensitive nutrients? And what is a cook doing overcooking stuff? Managing the addition of ingredients so that tender vegetables are added last and cooked gently is part of good cooking practice. Oh, and let's not forget that there are some foods that actually increase in nutritional value when prepared by cooking. Cooking breaks down some food in ways that our body can't or doesn't have time to do. No offense to the all-raw-food-all-the-time crowd, but their bodies are not getting to some things that are available to the rest of us. In fairness to the no-cooking types, we should be eating a good serving of raw vegetables regularly. No wise person or nutritionist would ever suggest anything different. Regardless of your food and food preparation choices, best wishes. Bon appétit!
How does cooking affect the world?
Proper cooking helps people spell does correctly !
How does high altitude affect pressure cooking?
High altitude affects pressure cooking by reducing the atmospheric pressure, which can lead to longer cooking times and potentially affect the outcome of the dish.
Does microwaving breast milk kill nutrients and affect its nutritional value?
Yes, microwaving breast milk can destroy some of its nutrients and affect its nutritional value. It is recommended to warm breast milk using other methods, such as placing the bottle in warm water, to preserve its nutritional content.
How does cooking oil affect the density of water?
It doesn't. Cooking oil doesn't dissolve in water and therefore doesn't affect the chemistry of the water.
Does cooking alter chemical composition of food?
Yes, cooking can alter the chemical composition of food through processes like denaturation, caramelization, and Maillard reaction. These changes can affect the nutritional content, flavor, and digestibility of the food.
How does bi-carbonate and soda affect cooking?
They help whatever your cooking rise. =D
