I'm a novice certainly to this hobby/way of life, how long would you guess it takes the 'typical' or average sized butt to read 140. I smoke at 225 or 230.
About 4 to 5 1/2 hours.
Below is a piece taken from my "Pulled Pork Butt" Step by Step.
It should answer any of your questions.
If you want to see the rest, click on "Pulled Pork Butt" in my Signature below.
Bear
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Day #1 (Prepping)
Take one 7 pound Boston Butt, and rinse, pat dry, score the fat cap, apply yellow mustard, and cover with a good rub.
Then cover with plastic wrap, and put in fridge. I like to put it in overnight so the meat can absorb the flavor of the rub.
Day #2 (Smoking Day)
6:30AM------------Preheat Smoker to 220˚.
6:45AM------------Put more rub on Butt (optional), and place it on 2nd shelf grill, and foil pan on 3rd shelf grill.
7:00AM------------Fill my
AMNPS with Hickory pellets, and light one end.
11:00AM-----------Insert Sterile Meat probe in center of Butt---Internal Temp measures---124˚. Bump heat up to 240˚.
Note: This is why I never probe uncured whole meat until it's been in the smoker for a few hours, unless I'm positive it will get to 135˚ in time. This one's been in over 4 hours at 220˚ smoker temp, and still in the Danger Zone (under 135˚).
Resume------
12:00Noon--------137˚ Internal Temp.
Meat has been in smoker for 5 hours and 15 minutes, and just got out of Danger zone (41˚ to 135˚ in 4 hours).
Since I did not break the seal by probing the Butt, or injecting the Butt, it was OK to go longer than 4 hours in the Danger Zone.
If I know for sure how long it will take to get my meat from 41˚ to 135˚, by using the temperature I'm setting it for, it would be safe to probe or inject the meat.
However, I usually play around with trying different temps. This time I started it at only 220˚, to try to get more smoke time, but since I didn't probe or inject, it didn't hurt anything to be in the Danger Zone for more than 4 hours.
12:00Noon--------Bump heat up to 240˚.
3:00PM------------165˚ Internal Temp. Put Butt in foil pan, add 6 ounces of Apple Juice, and cover & seal with Double Foil.
3:00PM------------Also bump heat up to 260˚, and remove
AMNPS (1/2 row was left unburned---Separate & save unburned pellets).
5:30PM------------Internal Temp is 203˚------Cut heat back to 100˚, instead of putting in cooler.
6:00PM------------Pull at 208˚ Internal Temp. (Coasted 5˚)
6:00PM------------Uncover just long enough to bust off a big enough hunk to pull for our Supper, and cover back up again.
Eat Supper while the rest of the Butt sits covered in foil.
Pull the rest of the Butt after Supper.
Soooooooo Tender & Tasty !!!!
"Pulled Pork Butt" Step by Step. You can see the whole thing by clicking on "Pulled Pork Butt" in my Signature below.