6 years ago, I researched then tested the concept that 3-4 hours will give all the smoke flavor you are going to get.
Every couple a years the subject comes up again. Here's what I found out...JJ
" It won't take no more Smoke after 4 hours..." HORSE HOCKEY!!!
I can't remember how many Butt's I have smoked and have always believed..." IT'S A SMOKER...IF THERE IS MEAT IN THERE. YOU SHOULD BE MAKING SMOKE! " So at a minimum when smoking a Butt, low and slow in my MES, I use a Full Load in the
AMNPS and count on 10+ hours of that Sweet TBS to consistently Kiss My Butt...
I was looking at smoking a pair of Butts as a Test to see if " I " have been Blowing Smoke or, the 4 hour folks are correct...
The result in the MES with
AMNPS...I applied 4 hours of Smoke and removed the
AMNPS then let the Butts ride 10 more hours at 250*F to an IT of 205°. The finished Butts had a beautiful Bark, pulled easily and were very juicy...BUT...They had NO WHERE NEAR the wonderful " Smokey Flavor " that I have come to love from Butts that luxuriate in 10+ hours of Thin Blue Smoke! They were ok but there was a noticeable difference and my Family thought them bland and they do not like Too Smokey...
Different smokers and various fuels generate different types, colors and concentrations of smoke and we know out comes will vary. It is important to Practice. Experiment and Learn your smoker to determine how much, how long and what type of Smoke you wish to apply to your meat. But remember, there is no validity to General statements like..." It won't take no more Smoke after 4 hours "... Here is how Smoke Happens...
Smoke is made up of Gasses, some containing Nitrogen, Particles of assorted chemicals, most of which have a pleasant flavor, and some Tars and Oils. As the meat is being smoked many of these Gasses dissolve into the meats surface moisture. Since in the early stages this moisture can move in and out of the outer 1/4 to 1/2 inch of the meats surface we get flavor from these Gasses and in a chemical reaction between the Nitrogen Gas and the Myoglobin, the stuff that makes meat Red and does NOT contain any Blood, we get a permanent color change from red to pink. A Smoke Ring! During this chemical reaction the smoke Particles start building on the surface of the meat. Since they are too big to penetrate very far, the particles only accumulate on the surface with some of the smaller ones being carried an extremely short distance in with the surface liquids. Bottom line is Smoke is made up of many chemicals and gasses. The Gasses can combine with the meat juices, it will Absorb Smoke, and enter the meat until about 140*F(approx. 4 hours at 225-250°F) when the muscle fibers contract to the point that very little passes in or out...BUT...The flavorful smoke Particles will continue to built up on the surface, in other words it will continue to " Take Smoke ", as long as smoke is being applied to the meat.
So, no more " Smoke Ring " penetration after 140*F but " Smoke Flavor " will keep building until you remove the meat from the Smoke...JJ
BTW...Sorry there is no Qview, Casey had the camera with her for the weekend...