In my many hours or research of the topic of BBQ I came across this article on smoking techniques. It helped me understand my smoker and roaster and smoking in general, and I found this information very helpful. I was going to attempt to write my own, but truthfully this article is very complete and gives you everything you’ll need to know.
First, know your equipment, each and every smoker and roaster is different; there are hot and cold spots inside the smoker and roaster. The larger the smoker and roaster, the more hot and cold spots there will be. Weather is a big factor during smoking, the pit will smoke differently in high and low humidity. Wind and temperature will also affect smoking. On a cold day, you will end up using more fuel than a hot day. On a windy day you will need to limit your airflow or your pit will most likely run hot (remember: more air = more heat, less air = less heat).
Fresh ingredients, and proper food handling guidelines are a must. Smoked meats are exposed to bacteria more so than any other cooking process. If you have questions regarding proper food handling, check the article here. It is imperative that proper food handling practices be followed.
Building The Fire
There are many out there that have great fire building techniques, and you should use what you are comfortable with. I will share mine as well:
I only use real Hardwood Lump Charcoal. This can be a little hard to find depending on where you are at. If lump charcoal is difficult to find then regular briquet can be used, just make sure it is made out of hardwood, without lighter fluid.
A very popular method is to use a chimney starter. If you will be primarily using charcoal for your heat source, then I recommend using one of these to start and burn down new charcoal before adding it to your pit.
In my large offset pit, I use lump charcoal to heat it up, and wood for cooking. In most pits you will need to use mostly charcoal, and then use some wood chunks or chips for flavour. A good rule of thumb is 90% charcoal to 10% dry wood chunks. If you are using wood chunks or chips that have been soaked in water do not add them until you are ready to cook. Also, you will only need a couple of wood chunks if you are soaking them first, or a small handful of wood chips. To light the fire I use a fire starter stick. I have also used a gel fire starter, I never use lighter fluid, it has a tendency to flavour the meat. When using the gel I put my charcoal in and leave about a 3 to 5 inch gully in the middle where I put the gel fire starter. If you use the stick fire starter, then place pieces of the stick into the sides of the charcoal pile. Make sure you can see the edge of the stick so you can light it! At this point you need full air flow through your smoker and roaster. Both chimney vent, and the fire box air vents should be wide open. Then light the gel or stick and close the lid/door, within 15 minutes (small cookers) and up to 60 minutes (large cookers) you should be ready to cook. On most smoker and roasters the ideal cooking temperature will be between 220 – 250 degrees.
If it’s a windy day keep your air vents near closed. Remember more air, increased temperature. On some of the water smoker and roasters, you may even close the air vent completely. Typically there is more than enough air coming from the bottom and sides of the smoker and roaster. In an offset air leakage into the cooking chamber through the doors can give a convection type effect. Increasing the air draw from the firebox. In controlling your fire, there is no substitute to knowing how to control air flow in your smoker and roaster.
Another method is becoming increasingly popular to increase burn times and to bring the cooker up to temp slower and more accurately. This method is now popularly known as “The Minion Method”, so named after Jim Minion a competition cook who perfected this method on his WSM (Weber Smokey Mountain). This method starts with stacking a large quantity of un-lit charcoal in your cooker, then using chimney starter burn a relatively small amount of charcoal, then adding it on top of the pile of un-lit charcoal. The remaining charcoal will start and burn slowly throughout the cook. It will take many hours to burn through your charcoal this way. This method is extremely useful if using forced draft temp control, such as the BBQ Guru. The BBQ Guru will bring the cooker up to temp, and only burn what it needs throughout the cook.
Seasoning a New Pit
A new BBQ pit should be seasoned like a new iron skillet. It is suggested by most manufacturers to rub the inside of the pit with a vegetable cooking oil, but actually some even use lard. Then light the pit and bring the cooking chamber up to about 220 degrees. Cut the airflow in the pit to about 1/2 and let it smoke. A few hours is good, the longer the better. Another good idea is to spray or rub the oil at the joints of where the firebox meets the cooking chamber. This will help you keep the paint in those spots.
Here are a few quick guidelines on cooking times. Cooking times will be relative to the temperature you are cooking at, the physical size of the piece of meat, air flow (convection effect) through the cooker, etc.. This is only a guide, start with these and adjust based on your cooker.
pork ribs – a good starting point is 60 minutes per pound.
Pork shoulder – a good starting point is 75 to 80 minutes per pound, with the second half of the cooking time wrapped in foil.
Chicken – 45 to 60 minutes per pound.
Beef Brisket – a good starting point is 65 to 75 minutes per pound with the second half of the cook wrapped in foil. (cook brisket until the flat portion is fork tender)
Using aluminium foil during the cooking process is a very controversial topic amongst BBQ experts. Using foil on fibrous pieces of meat will have the following benefits:
Decreased Cooking Time – Using foil on fibrous cuts such as pork shoulder, or beef brisket will aid in collagen breakdown resulting in less cooking time.
Limit Smoke Absorption – Smoke should be viewed as a spice. You want to achieve the right amount of smoke flavour. Wrapping your meat halfway or 3/4 of the way through cooking will limit the amount of time the meat is exposed to smoke.
Some view this as a crutch, and others (including myself) view it as a very necessary part of the cooking process.
The Water Pan Myth
The use of a water pan in upright water smoker and roasters, and in some offsets has been thought to add moisture to the air surrounding the meat. In the old smoke house days when meats were smoked for days at low temperatures, this was definitely a possibility. The reality is that at temperatures of 220+ degrees, the air will not hold the moisture. The water will actually end up on your meat, and can result in ash and soot sticking to the surface of the meat. Water used in smoker and roasters is to aid in temperature control of the cooking chamber.
Many have started using sand in place of water which will actually help in the fuel efficiency of your smoker and roaster. Keep in mind that it is very easy to burn up a piece of meat using sand in place of water, and you should know your smoker and roaster before you try this.