0_Wizard
Grilling  is a form of cooking that involves dry heat applied to the surface of food
Grilling is a form of cooking that involves dry heat applied to the surface of food, commonly from above or below.
chosen_Grilling_0
Grilling
chosen_topic_0_Grilling
Grilling
Grilling is a form of cooking that involves dry heat applied to the surface of food, commonly from above or below. Grilling usually involves a significant amount of direct, radiant heat, and tends to be used for cooking meat and vegetables quickly. Food to be grilled is cooked on a grill (an open wire grid such as a gridiron with a heat source above or below), a grill pan (similar to a frying pan, but with raised ridges to mimic the wires of an open grill), or griddle (a flat plate heated from below). Heat transfer to the food when using a grill is primarily through thermal radiation. Heat transfer when using a grill pan or griddle is by direct conduction.
Barbecue
Barbecue or barbeque (informally BBQ or barby) is both a cooking method and an apparatus/machine. Barbecuing is done slowly over low, indirect heat and the food is flavored by the smoking process, while grilling, a related process, is generally done quickly over moderate-to-high direct heat that produces little smoke. Barbecue can refer to the cooking method itself, the meat cooked this way, the cooking apparatus/machine used (the "barbecue grill" or simply "barbecue"), or to a type of social event featuring this type of cooking. Barbecuing is usually done outdoors by smoking the meat over wood or charcoal.
Barbecue grill
A barbecue grill is a device that cooks food by applying heat from below. There are several varieties of grills, with most falling into one of two categories: gas-fueled or charcoal. There is debate over which method yields superior results. Grilling has existed in the Americas since pre-Colonial times. The Arawak people of South America roasted meat on a wooden structure called a barbacoa in Spanish. For centuries, the term "barbacoa" referred to the wooden structure and not the act of grilling, but it was eventually modified to "barbecue." It was also applied to the pit-style cooking techniques now frequently used in the Southeastern United States.
Charbroiler
A charbroiler (also referred to as a chargrill, char-broiler or simply broiler) is a commonly used cooking device consisting of a series of grates or ribs that can be heated using a variety of means, and is used in both residential and commercial applications for a variety of cooking operations. The heat source is almost always beneath the cooking surface – for gas-fired applications this is referred to as an under-fired broiler. Most commonly the charbroiler is a series of long evenly spaced metal ribs over a large combustion chamber filled with an array of burners that may have a deflector, briquettes or radiant between the burner and the cooking surface.
Baking
Baking is a method of cooking food that uses prolonged dry heat, normally in an oven, but also in hot ashes, or on hot stones. The most common baked item is bread but many other types of foods are baked. Heat is gradually transferred "from the surface of cakes, cookies, and breads to their centre. As heat travels through, it transforms batters and doughs into baked goods with a firm dry crust and a softer centre". Baking can be combined with grilling to produce a hybrid barbecue variant by using both methods simultaneously, or one after the other. Baking is related to barbecuing because the concept of the masonry oven is similar to that of a smoke pit.
Regional variations of barbecue
Barbecue varies by the type of meat, sauce, rub, or other flavorings used, the point in barbecuing at which they are added, the role smoke plays, the equipment and fuel used, cooking temperature, and cooking time. The meat may be ground, for hamburgers, or processed into sausage or kebabs. The meat may be marinated or rubbed with spices before cooking, basted with a sauce or oil before, during or after cooking, or any combination of these. The word "braaivleis" (; ) is Afrikaans for grilled meat. The word "braai" (plural "braais") is Afrikaans for barbecue or grill and is a social custom in South Africa, Botswana, Namibia, Lesotho, Swaziland, Zimbabwe, Zambia, and Malawi.
Roasting
Roasting is a cooking method that uses dry heat where hot air envelops the food, cooking it evenly on all sides with temperatures of at least 150 °C (~300 °F) from an open flame, oven, or other heat source. Roasting can enhance flavor through caramelization and Maillard browning on the surface of the food. Roasting uses indirect, diffused heat (as in an oven), and is suitable for slower cooking of meat in a larger, whole piece. Meats and most root and bulb vegetables can be roasted. Any piece of meat, especially red meat, that has been cooked in this fashion is called a roast. Meats and vegetables prepared in this way are described as "roasted", e.g., roasted chicken or roasted squash.
1_Apprentice
What kind of items can you grill?
0_Wizard
Studies have shown that cooking beef, pork, poultry, and fish at high temperatures can lead to the formation of heterocyclic amines
Studies have shown that cooking beef, pork, poultry, and fish at high temperatures can lead to the formation of heterocyclic amines, benzopyrenes, and polycyclic aromatic hydrocarbons, which are carcinogens.
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Grilling
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Heterocyclic amine formation in meat
Heterocyclic amines are a group of chemical compounds, many of which can be formed during cooking. They are found in meats that are cooked to the "well done" stage, in pan drippings and in meat surfaces that show a brown or black crust. Epidemiological studies show associations between intakes of heterocyclic amines and cancers of the colon, rectum, breast, prostate, pancreas, lung, stomach/esophagus and animal feeding experiments support a causal relationship. The U.S. Department of Health and Human Services Public Health Service labeled several heterocyclic amines as likely carcinogens in its 13th "Report on Carcinogens".
Heterocyclic amine
Heterocyclic amines, also sometime referred to as HCAs, are chemical compounds containing at least one heterocyclic ring, which by definition has atoms of at least two different elements, as well as at least one amine (nitrogen-containing) group. Typically it is a nitrogen atom of an amine group that also makes the ring heterocyclic (e.g., pyridine), though compounds exist in which this is not the case (e.g., the drug Zileuton). The biological functions of heterocyclic amines vary, including vitamins and carcinogens. Carcinogenic heterocyclic amines are created by high temperature cooking of meat, for example.
Grilling
Grilling is a form of cooking that involves dry heat applied to the surface of food, commonly from above or below. Grilling usually involves a significant amount of direct, radiant heat, and tends to be used for cooking meat and vegetables quickly. Food to be grilled is cooked on a grill (an open wire grid such as a gridiron with a heat source above or below), a grill pan (similar to a frying pan, but with raised ridges to mimic the wires of an open grill), or griddle (a flat plate heated from below). Heat transfer to the food when using a grill is primarily through thermal radiation. Heat transfer when using a grill pan or griddle is by direct conduction.
Red meat
Commonly, especially in gastronomy, red meat is red when raw and dark in color when cooked, in contrast to white meat which is pale in color before and after cooking and dark meat which is dark when cooked. In cooking, only flesh from mammals or fowl is classified as red or white. In nutritional science, on the other hand, red meat is defined as any meat that has more myoglobin than white meat, white meat being defined as non-dark meat from chicken (excluding leg or thigh), or fish. Some meat, such as pork, is red meat under the nutritional definition, and white meat using the common or gastronomic definition.
Meat
Meat is animal flesh that is eaten as food. Humans have hunted and killed animals for meat since prehistoric times. The advent of civilization allowed the domestication of animals such as chickens, sheep, rabbits, pigs and cattle. This eventually led to their use in meat production on an industrial scale with the aid of slaughterhouses. Meat is mainly composed of water, protein, and fat. It is edible raw, but is normally eaten after it has been cooked and seasoned or processed in a variety of ways. Unprocessed meat will spoil or rot within hours or days as a result of infection with and decomposition by bacteria and fungi.
Beef
Beef is the culinary name for meat from cattle, particularly skeletal muscle. Humans have been eating beef since prehistoric times. Beef is a source of high-quality protein and essential nutrients. Beef skeletal muscle meat can be cut into roasts, short ribs or steak (filet mignon, sirloin steak, rump steak, rib steak, rib eye steak, hanger steak, etc.). Some cuts are processed (corned beef or beef jerky), and trimmings, usually mixed with meat from older, leaner cattle, are ground, minced or used in sausages. The blood is used in some varieties of blood sausage. Other parts that are eaten include other muscles and offal, such as the oxtail, liver, tongue, tripe from the reticulum or rumen, glands (particularly the pancreas and thymus, referred to as sweetbread), the heart, the brain (although forbidden where there is a danger of bovine spongiform encephalopathy, BSE), the kidneys, and the tender testicles of the bull (known in the United States as "calf fries", "prairie oysters", or "Rocky Mountain oysters").
Cooking
Cooking or cookery is the art, technology, science and craft of preparing food for consumption with or without the use of heat. Cooking techniques and ingredients vary widely across the world, from grilling food over an open fire to using electric stoves, to baking in various types of ovens, reflecting unique environmental, economic, and cultural traditions and trends. The ways or types of cooking also depend on the skill and type of training an individual cook has. Cooking is done both by people in their own dwellings and by professional cooks and chefs in restaurants and other food establishments.
1_Apprentice
Where does the heat come from when grilling?
0_Wizard
Direct heat grilling can expose food to temperatures
Direct heat grilling can expose food to temperatures often in excess of .
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Grilling
chosen_topic_0_Grilling
Grilling
Grilling is a form of cooking that involves dry heat applied to the surface of food, commonly from above or below. Grilling usually involves a significant amount of direct, radiant heat, and tends to be used for cooking meat and vegetables quickly. Food to be grilled is cooked on a grill (an open wire grid such as a gridiron with a heat source above or below), a grill pan (similar to a frying pan, but with raised ridges to mimic the wires of an open grill), or griddle (a flat plate heated from below). Heat transfer to the food when using a grill is primarily through thermal radiation. Heat transfer when using a grill pan or griddle is by direct conduction.
Barbecue
Barbecue or barbeque (informally BBQ or barby) is both a cooking method and an apparatus/machine. Barbecuing is done slowly over low, indirect heat and the food is flavored by the smoking process, while grilling, a related process, is generally done quickly over moderate-to-high direct heat that produces little smoke. Barbecue can refer to the cooking method itself, the meat cooked this way, the cooking apparatus/machine used (the "barbecue grill" or simply "barbecue"), or to a type of social event featuring this type of cooking. Barbecuing is usually done outdoors by smoking the meat over wood or charcoal.
Microwave oven
A microwave oven (also commonly referred to as a microwave) is a kitchen appliance that heats and cooks food by exposing it to  electromagnetic radiation in the microwave frequency range. This induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating. Microwave ovens heat foods quickly and efficiently because excitation is fairly uniform in the outer of a homogeneous, high water content food item; food is more evenly heated throughout than generally occurs in other cooking techniques. The development of the cavity magnetron in the UK made possible the production of electromagnetic waves of a small enough wavelength (microwaves).
Charbroiler
A charbroiler (also referred to as a chargrill, char-broiler or simply broiler) is a commonly used cooking device consisting of a series of grates or ribs that can be heated using a variety of means, and is used in both residential and commercial applications for a variety of cooking operations. The heat source is almost always beneath the cooking surface – for gas-fired applications this is referred to as an under-fired broiler. Most commonly the charbroiler is a series of long evenly spaced metal ribs over a large combustion chamber filled with an array of burners that may have a deflector, briquettes or radiant between the burner and the cooking surface.
Barbecue grill
A barbecue grill is a device that cooks food by applying heat from below. There are several varieties of grills, with most falling into one of two categories: gas-fueled or charcoal. There is debate over which method yields superior results. Grilling has existed in the Americas since pre-Colonial times. The Arawak people of South America roasted meat on a wooden structure called a barbacoa in Spanish. For centuries, the term "barbacoa" referred to the wooden structure and not the act of grilling, but it was eventually modified to "barbecue." It was also applied to the pit-style cooking techniques now frequently used in the Southeastern United States.
Baking
Baking is a method of cooking food that uses prolonged dry heat, normally in an oven, but also in hot ashes, or on hot stones. The most common baked item is bread but many other types of foods are baked. Heat is gradually transferred "from the surface of cakes, cookies, and breads to their centre. As heat travels through, it transforms batters and doughs into baked goods with a firm dry crust and a softer centre". Baking can be combined with grilling to produce a hybrid barbecue variant by using both methods simultaneously, or one after the other. Baking is related to barbecuing because the concept of the masonry oven is similar to that of a smoke pit.
Outdoor cooking
Outdoor cooking differs substantially from kitchen-based cooking, the most obvious difference being lack of an easily defined kitchen area. As a result, campers and backpackers have developed a significant body of techniques and specialized equipment for preparing food in outdoors environments. Such techniques have traditionally been associated with nomadic cultures such as the Berbers of North Africa, the Arab Beduins, the Plains Indians and pioneers of North America, and have been carried down to and refined in modern times for use during recreational outdoors pursuits. Currently, much of the work of maintaining and developing outdoor cooking traditions in Westernized countries is done by the Scouting movement and by wilderness educators such as the National Outdoor Leadership School and Outward Bound, as well as by writers and cooks closely associated with the outdoors community.
1_Apprentice
What is it that produces the heat?  There are always so many different types of grills at the store.
0_Wizard
 when the heat source for grilling comes from above, grilling is called broiling.
In the United States, when the heat source for grilling comes from above, grilling is called broiling.
chosen_Grilling_0
Grilling
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Grilling
Grilling is a form of cooking that involves dry heat applied to the surface of food, commonly from above or below. Grilling usually involves a significant amount of direct, radiant heat, and tends to be used for cooking meat and vegetables quickly. Food to be grilled is cooked on a grill (an open wire grid such as a gridiron with a heat source above or below), a grill pan (similar to a frying pan, but with raised ridges to mimic the wires of an open grill), or griddle (a flat plate heated from below). Heat transfer to the food when using a grill is primarily through thermal radiation. Heat transfer when using a grill pan or griddle is by direct conduction.
Barbecue grill
A barbecue grill is a device that cooks food by applying heat from below. There are several varieties of grills, with most falling into one of two categories: gas-fueled or charcoal. There is debate over which method yields superior results. Grilling has existed in the Americas since pre-Colonial times. The Arawak people of South America roasted meat on a wooden structure called a barbacoa in Spanish. For centuries, the term "barbacoa" referred to the wooden structure and not the act of grilling, but it was eventually modified to "barbecue." It was also applied to the pit-style cooking techniques now frequently used in the Southeastern United States.
Barbecue
Barbecue or barbeque (informally BBQ or barby) is both a cooking method and an apparatus/machine. Barbecuing is done slowly over low, indirect heat and the food is flavored by the smoking process, while grilling, a related process, is generally done quickly over moderate-to-high direct heat that produces little smoke. Barbecue can refer to the cooking method itself, the meat cooked this way, the cooking apparatus/machine used (the "barbecue grill" or simply "barbecue"), or to a type of social event featuring this type of cooking. Barbecuing is usually done outdoors by smoking the meat over wood or charcoal.
Charbroiler
A charbroiler (also referred to as a chargrill, char-broiler or simply broiler) is a commonly used cooking device consisting of a series of grates or ribs that can be heated using a variety of means, and is used in both residential and commercial applications for a variety of cooking operations. The heat source is almost always beneath the cooking surface – for gas-fired applications this is referred to as an under-fired broiler. Most commonly the charbroiler is a series of long evenly spaced metal ribs over a large combustion chamber filled with an array of burners that may have a deflector, briquettes or radiant between the burner and the cooking surface.
Indirect grilling
Indirect grilling is a barbecue cooking technique in which the food is placed to the side of or above the heat source instead of directly over the flame as is more common. This can be achieved by igniting only some burners on a gas barbecue or by piling coals to one side of a charcoal pit. A drip tray is placed below the food to prevent fat from the food igniting and generating a direct flame. Indirect grilling is designed to cook larger (e.g. pork shoulders, whole chicken) or tougher foods (e.g. brisket, ribs) that would burn if cooked using a direct flame. This method of cooking generates a more moderate temperature (about 275–350 °F) and allows for an easier introduction of wood smoke for flavoring.
Regional variations of barbecue
Barbecue varies by the type of meat, sauce, rub, or other flavorings used, the point in barbecuing at which they are added, the role smoke plays, the equipment and fuel used, cooking temperature, and cooking time. The meat may be ground, for hamburgers, or processed into sausage or kebabs. The meat may be marinated or rubbed with spices before cooking, basted with a sauce or oil before, during or after cooking, or any combination of these. The word "braaivleis" (; ) is Afrikaans for grilled meat. The word "braai" (plural "braais") is Afrikaans for barbecue or grill and is a social custom in South Africa, Botswana, Namibia, Lesotho, Swaziland, Zimbabwe, Zambia, and Malawi.
Heat pump
A heat pump is a device that transfers heat energy from a source of heat to a destination called a "heat sink". Heat pumps are designed to move thermal energy in the opposite direction of spontaneous heat transfer by absorbing heat from a cold space and releasing it to a warmer one. A heat pump uses a small amount of external power to accomplish the work of transferring energy from the heat source to the heat sink. While air conditioners and freezers are familiar examples of heat pumps, the term "heat pump" is more general and applies to many HVAC (heating, ventilating, and air conditioning) devices used for space heating or space cooling.
1_Apprentice
Do people grill all over the world?
0_Wizard
 Heat transfer to the food when using a grill is primarily through thermal radiation
Heat transfer to the food when using a grill is primarily through thermal radiation.
chosen_Grilling_0
Grilling
chosen_topic_0_Grilling
Thermal radiation
Thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter. All matter with a temperature greater than absolute zero emits thermal radiation. When the temperature of a body is greater than absolute zero, inter-atomic collisions cause the kinetic energy of the atoms or molecules to change. This results in charge-acceleration and/or dipole oscillation which produces electromagnetic radiation, and the wide spectrum of radiation reflects the wide spectrum of energies and accelerations that occur even at a single temperature. Examples of thermal radiation include the visible light and infrared light emitted by an incandescent light bulb, the infrared radiation emitted by animals that is detectable with an infrared camera, and the cosmic microwave background radiation.
Heat transfer
Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species, either cold or hot, to achieve heat transfer. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system. Heat conduction, also called diffusion, is the direct microscopic exchange of kinetic energy of particles through the boundary between two systems.
Planck's law
Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature "T". The law is named after Max Planck, who proposed it in 1900. It is a pioneering result of modern physics and quantum theory. The spectral radiance of a body, , describes the amount of energy it gives off as radiation of different frequencies. It is measured in terms of the power emitted per unit area of the body, per unit solid angle that the radiation is measured over, per unit frequency. Planck showed that the spectral radiance of a body for frequency at absolute temperature is given by  where is the Boltzmann constant, is the Planck constant, and is the speed of light in the medium, whether material or vacuum.
Passive solar building design
In passive solar building design, windows, walls, and floors are made to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices. The key to design a passive solar building is to best take advantage of the local climate performing an accurate site analysis. Elements to be considered include window placement and size, and glazing type, thermal insulation, thermal mass, and shading. Passive solar design techniques can be applied most easily to new buildings, but existing buildings can be adapted or "retrofitted".
Thermal conduction
Thermal conduction is the transfer of heat (internal energy) by microscopic collisions of particles and movement of electrons within a body. The microscopically colliding objects, that include molecules, atoms, and electrons, transfer disorganized microscopic kinetic and potential energy, jointly known as internal energy. Conduction takes place in all phases of matter, including solids, liquids, gases and waves. The rate at which energy is conducted as heat between two bodies is a function of the temperature difference (temperature gradient) between the two bodies and the properties of the conductive medium through which the heat is transferred.
R-value (insulation)
The R-value is a measure of thermal resistance, or ability of heat to transfer from hot to cold, through materials (such as insulation) and assemblies of materials (such as walls and floors). The higher the R-value, the more a material prevents heat transfer. R-value depends on materials' resistance to heat conduction, as well as the thickness and (for loose or porous material) any heat losses due to convection and radiative heat transfer. However, it does not account for the radiative or convective properties of the material's surface, which may be an important factor for some applications. R varies with temperature, but in construction it is common to treat it as being constant for a given material (or assembly).
Grilling
Grilling is a form of cooking that involves dry heat applied to the surface of food, commonly from above or below. Grilling usually involves a significant amount of direct, radiant heat, and tends to be used for cooking meat and vegetables quickly. Food to be grilled is cooked on a grill (an open wire grid such as a gridiron with a heat source above or below), a grill pan (similar to a frying pan, but with raised ridges to mimic the wires of an open grill), or griddle (a flat plate heated from below). Heat transfer to the food when using a grill is primarily through thermal radiation. Heat transfer when using a grill pan or griddle is by direct conduction.
1_Apprentice
That's really cool.  Where did grilling originate?