The Great Bottle Opener Giveaway

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Check your thermometers!

Reply
 
LinkBack Thread Tools
Old 09-21-2008, 12:00 AM   #1
AZ_IPA
PKU
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
AZ_IPA's Avatar
Recipes 
 
Join Date: Jun 2008
Location: The Cold Part of AZ
Posts: 41,743
Liked 5985 Times on 5252 Posts
Likes Given: 673

Default Check your thermometers!

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

__________________
AZ_IPA is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2008, 12:05 AM   #2
FishinDave07
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2007
Location: South Florida
Posts: 1,360
Liked 1 Times on 1 Posts

Default

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.

__________________
Primary: Nothing
Secondary: DFH Punkin Ale
Bottled/Conditioning: Cigar City Jai Alai IPA Clone, Apple Jack 1.0, Apple Jack 2.0
Drinking: Yakima Blonde (Imperialized), Banana Wheat, Russian Imperial Stout, and anything i can get my hands on
On Deck: Watermelon Wheat, Red Panda Ale, Gluten Free Brown Ale, Mojito IPA, Smoked Pepper Stout
FishinDave07 is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2008, 12:15 AM   #3
sliprose
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Howard County, MD
Posts: 18
Default

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.

__________________
sliprose is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2008, 02:21 PM   #4
r0botluv
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2008
Posts: 1
Default

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.

__________________
r0botluv is offline
 
Reply With Quote Quick reply to this message
Old 09-21-2008, 02:31 PM   #5
AnOldUR
fer-men-TAY-shuhn
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
AnOldUR's Avatar
Recipes 
 
Join Date: Mar 2007
Location: New Jersey
Posts: 5,999
Liked 517 Times on 378 Posts
Likes Given: 398

Default

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."

__________________
Sent from my POS computer because I refuse to own a smartphone!
AnOldUR is offline
 
Reply With Quote Quick reply to this message
Old 09-22-2008, 02:23 AM   #6
mykayel
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2007
Posts: 203
Default

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.
__________________
mykayel is offline
 
Reply With Quote Quick reply to this message
Old 09-22-2008, 02:50 AM   #7
Soperbrew
Who rated my beer?
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Soperbrew's Avatar
Recipes 
 
Join Date: Feb 2008
Location: Chandler, Arizona
Posts: 2,582
Liked 63 Times on 62 Posts
Likes Given: 10

Default

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.
__________________
Soperbrew is offline
 
Reply With Quote Quick reply to this message
Old 09-22-2008, 12:20 PM   #8
LooyvilleLarry
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2008
Location: Louisville,KY
Posts: 988
Liked 4 Times on 4 Posts
Likes Given: 2

Default

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.

__________________
LooyvilleLarry is offline
 
Reply With Quote Quick reply to this message
Old 09-22-2008, 02:07 PM   #9
Edcculus
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: Greenville, SC
Posts: 4,567
Liked 39 Times on 37 Posts

Default

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.

__________________
Edcculus is offline
 
Reply With Quote Quick reply to this message
Old 09-22-2008, 02:17 PM   #10
GilaMinumBeer
In yo' garage, steelin' yo parts.
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
GilaMinumBeer's Avatar
Recipes 
 
Join Date: Jan 2008
Location: Oblivion
Posts: 46,864
Liked 4604 Times on 4299 Posts
Likes Given: 55

Default

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.

__________________
GilaMinumBeer is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Double check your thermometers Diablotastic All Grain & Partial Mash Brewing 31 02-09-2009 02:49 PM
Thermometers, Thermometers, Thermometers raceskier Equipment/Sanitation 3 09-24-2008 03:43 AM
Thermometers Chris_Dog Equipment/Sanitation 3 10-11-2007 11:01 PM
Thermometers ? Twilli Equipment/Sanitation 5 01-14-2007 07:39 PM