How often do you calibrate your Tel Tru

dstearn

It seems like I have to calibrate mine once a month to keep it accurate. When I do a long brisket cook I calibrate it but I rely on my Digi Q over the dome thermo. Yesterday I was smoking ribs at 225 grate and the Tel Tru was off by 50 degrees. Does everyone else have to calibrate each month?

jlsm

I always get a 50-degree difference between grill and dome on cooks shorter than three hours.

jhl192

Not very often. Maybe twice a year. Usually not off by much unless I twisted it or it's coated with something. The delta between dome and grid temp fluctuates from 5 degrees to 50 degrees depending on your target temp, how long you have been cooking the meat and how long ago you last opened the lid. 50 degrees is not unusual.

XC242

I bought my LBGE over 2 years ago. Yesterday I checked the thermometer for the first time. It was spot on.

lousubcap

A check my dome thermo before every low&slow cook-so that's 2-3 times/month.  Drifted off by about 10*F once around a year ago but other than that, it's been fine. 

buzd504

I've never calibrated mine.  I suspect it's a bit off, but I don't worrry about it.

MeTed

I do mine about once a month not that it needs it, it has never been off, but it is another fun thing to do connected with the Egg.

SunDeviledEgg

What's the best way to calibrate a thermometer?

dstearn

SunDeviledEgg said:

What's the best way to calibrate a thermometer?

Boiling water, should read 100 C. If it is too high or low you can adjust the nut on the back of the Tel Tru either way.

buzd504

dstearn said:

Boiling water, should read 100 C. If it is too high or low you can adjust the nut on the back of the Tel Tru either way.

Assuming you're at sea level.

Carolina Q

I think I've done it a couple of times in my 5+ years of egging. Once with the original non-TelTru and then it's TT replacement. Both were pretty close. Haven't checked in a long time.

RRP

I have had 3 Tel-Trus for years - they were dead on accurate when they arrived and in all this time only one went out by 10 degrees once! I check every couple years at best.

BTW here's another chance to climb up on the soapbox...that needless spring clip inside your egg on the probe grabs the probe so securely that if you turn the face of the thermometer you can easily knock it out of caliber! You don't need that clip - gravity will keep the thermometer in the dome hole!

DMW

RRP said:

I have had 3 Tel-Trus for years - they were dead on accurate when they arrived and in all this time only one went out by 10 degrees once! I check every couple years at best.

BTW here's another chance to climb up on the soapbox...that needless spring clip inside your egg on the probe grabs the probe so securely that if you turn the face of the thermometer you can easily knock it out of caliber! You don't need that clip - gravity will keep the thermometer in the dome hole!

Ron,

That only works if you obey the law of gravity. Occasionally I rebel... 

:-B

dstearn

RRP said:

I have had 3 Tel-Trus for years - they were dead on accurate when they arrived and in all this time only one went out by 10 degrees once! I check every couple years at best.

BTW here's another chance to climb up on the soapbox...that needless spring clip inside your egg on the probe grabs the probe so securely that if you turn the face of the thermometer you can easily knock it out of caliber! You don't need that clip - gravity will keep the thermometer in the dome hole!

Thanks for the advice, I will try to go clipless and rely on gravity going forward.