If you are updating the PitDroid app, I have a feature request.
- A way to set the desired probe temp and the app would calculate how much longer (hours) before it reaches that temp.
When doing a cook, the food probe displays degrees per hour. I'm cooking a pork butt and I'm targeting 200 degrees internal temp, and the probe is increasing at say, 15 degrees/ hour. If the present temp is 160, then the remaining time would be:
time remaining = (200- 160) / 15 = 2.67 hrs
Wouldn't that be the ideal world!!
From my limited experience there's just too many variables to accurately predict the remaining time.
Your example is a good one. Pork butt. From my 3 butts that I've cooked so far (i know... limited experience). 2 have hit the dreaded stall (9lb took 11 hours, and a 10lb took 13 hours), and 1 has just ran right thru (8 lb, 9 hours). All of them have been cooked the same way. ~250 deg throughout the cook. no foiling. With dips/spikes in temps here and there (variable there of course)
A good analogy are those car GPS units that don't take into account traffic. THey'll give you an estimated time of arrival based on your speed, and/or the maximum allowable speed for the given piece of road till you arrive at your destination.
Your arrival time is say 10:30AM. For every minute stuck in traffic, that estimated time increases also by 1 minute IF you were to drive from now till destination at speed limits, but it doesn't give you the overall time with traffic.
Then of course estimating your target temp may not be when when the meat is done done (probe tender).
The increasing x deg / hour from my experience was NEVER constant. If that were true then this would be a no brainer.
As Much as I would love a feature like this to TRUELY set it and forget it:
1) I don't think it's feasible due to the many variables
2) (More importantly) It would take the fun out of low and slow smoking!
But thats just me