I'll start by saying I'm new at smoking and have a lot to learn. I currently use a brinkman vertical propane smoker. I've only cooked pork butts so far but have noticed every time I get that thick white smoke, buy haven't noticed a bitter taste to the meat yet. I use soaked hickory chunks 2"-3" thick and am constantly adding more wood. How much wood should be used when when smoking? I think I'm using way too much. I currently have the chip pan directly above the flames and the water pan above the chips. Would it make a difference if I put the water pan above the flame and then put the chip pan above the water pan? Any tips on how to achieve that perfect blue smoke would be greatly appreciated.
Whoa! Yep, too much wood, and way too often. You should get white smoke at first, but this should change to the thin smoke after 5-10 minutes depoending on the amount of wood used, among other factors which I'll explain below. The white smoke is water vapors and volitile substances naturally found in the wood which are flashing off and evaporating. This is a normal part of the process to get to the smoke you really want to see, but every time you add more smoke wood, you'll get more white smoke, so the less often you add wood the better for optimum smoking conditions.
A couple things come to mind for me here:
1) I don't soak my smoke wood, as this just seems to delay the actual generation of smoke until the excess water has all evaporated from the wood;
2) I can use 1 chunk at a time and get 3-4 hours form it with a gasser, and I've run 2 factory gassers and two charcoalers with gas conversions in the past, so the rest will work with most any smoker;
3) You only need small amounts of wood for smoke. The key is to maintain the proper level of heat and air (oxygen) getting to the wood which will only allow it to smolder, not burn rapidly. More heat and/or more air equals more smoke generation. The varied levels of heat can be changed by moving the wood holder closer/farther away from the smoke, or moving the wood further away from the central heat source of the burner and closer to the edge of the pan or box;;
4) Regulating the air getting to the wood can done several ways: if a pan is used, you can partially cover the smoke wood with foil, or place directly into a foil pouch. Another method I've used is to burn out (to remove nasties) a small beans or soup tin can and place the wood inside the can next to your heat source. If the smoke comes on too fast for too long, you can put the lid to the can on (burnt out also) to regulate the air even more, and this fits just loose enough if opened with the old style can iopener to allow some air in and the smoke to escape more slowly;
5) The size of the smoke wood matters. Larger will smolder more slowly, and smaller more rapidly. I use chunks for long smokes, such as brisket or butts, and ships for shorter smokes like chickens or smaller cuts of pork, beef or chicken pieces and fish. I have 2' to 4" chunks, 1/4" x 3/4-1" chips and slivers which are just about the thickness of a round toothpick and bit bigger, and 1" long. I use them all for different purposes and with different methods to control the rate of smoke generation, based upon their burn rate.
6) With a gas fired smoker, you should be able to control the smoke to the point of having charred pieces of smoke wood left in the pan/box/can/foil pouch when the smoke stops. This idicates an incomplete burn of the wood, and that's what creates the smoke you want to smell coming from the smoker, and taste in your food;
This is what I've followed for a couple years now and I no longer have issues with smoke in any of my 4 rigs.
Also, as mentioned above, if you can smell the smoke or it brings tears to your eyes if you put your face near the vent, you're good to go. Don't add wood if you can't see the smoke...that's when you just need to sniff around the rig a bit...if you smell meat cooking, but no smoke, it's time for wood.
Just lay back and see what happens on your next smoke. You may find that just using unsoaked chunks is all you need to have a decent smoke going for several hours without even tending to the smoke wood. Never know 'til ya try it. Then, once you see how it's doing on it's own, you'll know if corrective measures are needed.
Remember, if you can smell it...
Eric