Any other big piece of meat that takes time to cook - the sort of thing you would otherwise cook in an oven.
Direct grilling, on the other hand is for burgers, chicken wings, sausages, etc that you would normally broil - food that cooks quickly at a relatively high temperature.
Indirect Grilling
The Indirect grilling method is really much like baking or roasting - as you would in a household oven.
This way a large piece of meat, say a turkey or a leg of lamb (or anything else that needs a long time to cook through properly) is cooked due to the ambient temperature of the oven rather than by having applied to it directly.
Technically the meat is cooked by radiant heat and convection, which surrounds it and cooks it more slowly and evenly.
How to do it
In theory, either a
gas grill
or
charcoal grill
can be used here - or
weber grills
are especially good - all that is required is a lid or cover (preferably with vents) and a drip pan beneath the food.
Personally I've found that gas grills are much better for fine tuning temperature - with charcoal it's more of an art!
Incidentally, the temperature needs to be between 225F and 275F (105 - 135C) which ever fuel you use.
With a gas grill simply put a burner on low on one side of the grill, put the meat in the other half, and close the lid. It may take a little experimentation to keep the temperature in the right area.
With a charcoal grill the same idea applies, put your hot coals in one side and the meat on the other. Again, experiment by
Shovelling the coals all round the edge of you barbecue and the food in the middle.
Putting the coals in the middle and food items on either side.
Or just have coals in one half of the grill.
Where ever you put the coals, a drip pan needs to go underneath the food. This adds moisture to the atmosphere in the grill, to stop the food drying out. It also catches any juices dripping from the meat, thus keeping the grill clean.
With either gas or chacoal grills, a barbecue with air vents and temperature gauge built into the lid, will help massively - but with experience aren't 100% necessary.
Here Elizabeth Karmel explains the whole indirect grilling process very well:
BBQ Smoking on an Ordinary Grill
BBQ Smoking is a whole other subject really. It's best done with a purpose built
BBQ smoker,
but using the same methods described above it can be achieved using only one more piece of equipment -
a smoker box.
Very briefly, you place your moistened
BBQ wood chips
inside the smoker box, and place it under the close lid of your barbecue, directly on or above the hot charcoal. Do this from the start of cooking, until the temperature gets to around 150F - above which the meat won't take on anymore flavor from the smoke.
The addition of a lid and a smoker box massively expands your barbecue repertoire!
Direct Grilling
In reality this will need little if any explanation to most people.
In essence, direct grilling means that food is placed directly over the heat source, whether charcoal or gas.
The technical term for this form of heat transfer is thermal radiation.
It is used for food that needs a short cooking time at high temperature - 500F (260C) or more. Meat like steak, chicken pieces, sausages, some cheeses even, can all be cooked like this.
One of the benefits of direct grilling is the natural aroma it gives off due to a chemical reaction called the
Maillard reaction,
which is a form of caramelization that occurs in many foods during cooking.