ET 732 readfing too high in meat.

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realoldnick

Newbie
Original poster
Oct 6, 2012
26
11
Hi all . Just wondering if anyone has seen this.

This particular instance was in a gas stove, but I use the meter on the BBQ as well (gas) for roasting and a couple of tries at smoking (still working on that). I can run a water test and the reading is fine for boiling, hot and cold.

However when roasting a small pork roast, I found that the temp reading was _way_ too high, resulting in raw meat at the centre of the roast......in fact meat pink and bloody after the first slice or two! In desperation I ended up nuking the roast, again using the probe every minute to check the meat temp. This resulted in a very nice "roast" pork, because I cooked it nice and slow just up to 65 deg at the probe. So the probe worked fine, as long as it was not being heated by the oven. I was also apparently using it right...not on the bone etc

My thought is that because the shaft of the probe is not completely covered by the meat, it's transferring oven heat down to the tip, resulting in the high reading. I had this really badly with another cheap model, but I was hoping it would not happen here.
icon_cry.gif


So has anyone else experienced this, and does anybody have any ideas about overcoming the problem?

Thanks very much for any help.

Nick
 
Nick, morning and welcome to the forum....  
Hi all . Just wondering if anyone has seen this.

This particular instance was in a gas stove, but I use the meter on the BBQ as well (gas) for roasting and a couple of tries at smoking (still working on that). I can run a water test and the reading is fine for boiling, hot and cold.

However when roasting a small pork roast, I found that the temp reading was _way_ too high, resulting in raw meat at the centre of the roast......in fact meat pink and bloody after the first slice or two! In desperation I ended up nuking the roast, again using the probe every minute to check the meat temp. This resulted in a very nice "roast" pork, because I cooked it nice and slow just up to 65 deg at the probe. So the probe worked fine, as long as it was not being heated by the oven. I was also apparently using it right...not on the bone etc

My thought is that because the shaft of the probe is not completely covered by the meat, it's transferring oven heat down to the tip, resulting in the high reading. I had this really badly with another cheap model, but I was hoping it would not happen here.
icon_cry.gif


So has anyone else experienced this, and does anybody have any ideas about overcoming the problem?

Thanks very much for any help.

Nick
I have found that same thing in the oven....  When a probe is in the meat for many hours at high oven temps,(325-400) thermal conductance will give a false reading....  I suggest you insert the probe when you figure the meat is about done to get an accurate reading on Internal Temp (IT)....  In a smoker at temps of 225 or so, it is suggested the probe be inserted after several hours of smoking to...

1. not inject surface bacteria into the meat....

2. No reason to run down the batteries for a 15 hour cook....   

Sometimes, especially when making pulled pork or beef, I don't use a therm.... just a toothpick to check for tenderness... Dave
 
Thanks for that. So now it's just a hiccough, and not just me (again) or a faulty unit.

I will bear your comments about only doing it later on in mind. It seems a pity, though. Nice to just sit back with the remote. I can certainly see where it's daft over 15 hours or so, but this was a fairly rapid cook and I was concerned about overshooting temp in the meat.

Next time I am going to try a potato over the probe where it's out of the meat.....

Nick
 
Have you ever tested the probe for accuracy ? 
 
Well. Interesting. I emailed Maverick and they have offered me a free replacement probe, no strings attached. I have heard some negative stuff about their service but I have to say I can't complain.

Nick
 
I recently had a sudden similar problem where my brisket cooked nice and slow to 165 then in then minutes the ET732 read 300! No way it could have happened. Emailed maverick and they quickly replied, offering an exchange on the probe. It took a couple of weeks but the new one seems fine. I too thought about incidental probe contact as a result of weird temps but I had not moved anything around. Before I shipped the defective probe back, I did notice the wire was loose within the probe and that the sealant (rubber?) at the end of the probe had disintegrated away although it was only two months old. Wondered if I had been too rough in cleaning it. Either way, the Maverick folks stood behind the product and service was timely.
 
Yeah the big difference for me is that when I used the probe without leaving it in the oven it was fine. So I still think not a faulty probe, but conducted heat, because a fair bit (>1/3) of the probe was out of the meat.

Nick
 
 
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