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Old 09-21-2008, 12:00 AM   #1
AZ_IPA
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Today I brewed my 3rd AG batch.

The 1st (Bee Cave Haus) - I was low on my efficiency and the FG was really low 1.006

the 2nd (Bee Cave IPA) - I again was low on my efficieny and the FG (just bottled) was 1.010

Today, I used a new digital water proof thermomter and compared with the previous thermometer I was using, and it was waaaaay off! I haven't done the math, but I figure I was mashing about 10 degrees below what my target was (hence the low efficiency, low FG, and dry beer).

Just a reminder to check your thermometer's accuracy!

Happy brewing to you all this fall



 
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Old 09-21-2008, 12:05 AM   #2
FishinDave07
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Wow, thats crazy. I have 3: analog, floating, and digital. analog reads 12 degrees +, floating thermo is about 5 degrees off. And digital is perfect, except that the plug is a bit loose...I check all my thermos a week or two ago.


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Old 09-21-2008, 12:15 AM   #3
sliprose
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Feb 2008
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Make sure you have good batteries in your digital. I had a batch right before my digital thermometer's batteries died and I way missed my efficiency due to inaccurate readings. Put in new batteries and everything was good again. BTW: my floating is about 2 degrees off.

 
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Old 09-21-2008, 02:21 PM   #4
r0botluv
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Sep 2008
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Hey guys, I'm looking to buy a digital thermometer. Could you point me in the right direction, or even post some links to thermometers you trust?

I looked around online, googling and checking amazon, and gah, there are way to many to choose from.

 
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Old 09-21-2008, 02:31 PM   #5
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Mar 2007
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Just broke down and ordered one of the Traceable Waterproof Thermometers on Friday.

Traceable Waterproof Thermometer, 91824 - Lab Safety Supply

They seem to be getting good reviews here on HBT.

"Includes a Traceable certificate that indicates instrument traceability to standards provided by NIST."

 
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Old 09-22-2008, 02:23 AM   #6
mykayel
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Feb 2007
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Quote:
Originally Posted by r0botluv View Post
Hey guys, I'm looking to buy a digital thermometer. Could you point me in the right direction, or even post some links to thermometers you trust?

I looked around online, googling and checking amazon, and gah, there are way to many to choose from.
Go to your local supermarket, wallmart, target, bedbath and beyond and get a pyrex one Amazon.com: Pyrex Digital Probe Oven Thermometer/ Timer: Kitchen & Dining or anything similar.

 
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Old 09-22-2008, 02:50 AM   #7
Soperbrew
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Quote:
Originally Posted by AZ_IPA View Post
Today I brewed my 3rd AG batch.

The 1st (Bee Cave Haus) - I was low on my efficiency and the FG was really low 1.006

the 2nd (Bee Cave IPA) - I again was low on my efficieny and the FG (just bottled) was 1.010

Today, I used a new digital water proof thermomter and compared with the previous thermometer I was using, and it was waaaaay off! I haven't done the math, but I figure I was mashing about 10 degrees below what my target was (hence the low efficiency, low FG, and dry beer).

Just a reminder to check your thermometer's accuracy!

Happy brewing to you all this fall
Same happened to me when I started brewing. I now do not trust digital thermometers & only use normal analog ones.

 
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Old 09-22-2008, 12:20 PM   #8
LooyvilleLarry
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Aug 2008
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WOW! $80 for a thermo? I have 3 - an analog that I don't trust, a digital and a remote digital. I also have a lab grade adapter for my fluke meter. I'll be running a check on all these before my next brew.

 
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Old 09-22-2008, 02:07 PM   #9
Edcculus
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Jun 2007
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My el cheapo digital from Wal-Mart is pretty accurate. I've never officially checked, but I'd say it cant be more than 1-2 degrees off.

I never trust the dial thermometers that come with fryers and kits. I usually double check with my instant read dial meat thermometers.

 
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Old 09-22-2008, 02:17 PM   #10
GilaMinumBeer
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I check ALL of my thermo's together at every brewday. It takes no time at all to cold check while you are setting up your gear. Hot checking does take more time but if the thermo is spot on cold then it is rare, I find, that it will be off warm.



 
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