National Homebrew Club Ireland

Brewing Discussions => Equipment & Chemicals => Topic started by: Greg2013 on December 31, 2012, 07:27:14 PM

Title: Digital Thermometer
Post by: Greg2013 on December 31, 2012, 07:27:14 PM
Spotted this on ebay.com just now, all kidding about China aside for that price i reckon its worth a lash. Handy for when you are topping up FV etc.

http://www.ebay.com/itm/IR-Infrared-Gun-Thermometer-Digital-Temperature-Meter-Tester-Non-Contact-Laser-/251188675240?pt=LH_DefaultDomain_0&hash=item3a7c0302a8
Title: Re: Digital Thermometer
Post by: Shane Phelan on January 01, 2013, 01:21:52 PM
I have a similar one ordered from dealextreme (http://dx.com/). I don't have much confidence for its accuracy but I will test it either way against my other thermometers.

I like the idea of not having to clean thermometers constantly.  :)
Title: Re: Digital Thermometer
Post by: Greg2013 on January 01, 2013, 02:08:58 PM
Hey tube can youi describe that stainless steel one for me so i can look on ebay m8? ;D I want one of these thermometers anyway for in the kitchen,if they were cheap enough i might get two ;D
Title: Re: Digital Thermometer
Post by: Greg2013 on January 01, 2013, 02:36:18 PM
What about those ones where you have a probe on the end of a wire and a digital box readout on other end. Could you put probe into FV and just leave it there while fermenting, i am thinking via the rubber bung for a seal? That way you get a constant readout of brew temp :-/
Title: Re: Digital Thermometer
Post by: rukkus on January 01, 2013, 02:43:07 PM
I have one of those aldi ones, very handy. I also have one of these http://www.thehomebrewcompany.ie/pocket-digital-thermometer-50°-150°c-p-1473.html also does the job fine.
Title: Re: Digital Thermometer
Post by: Ciderhead on January 01, 2013, 03:12:21 PM
QuoteWhat about those ones where you have a probe on the end of a wire and a digital box readout on other end. Could you put probe into FV and just leave it there while fermenting, i am thinking via the rubber bung for a seal? That way you get a constant readout of brew temp :-/


Or you could avoid infection altogether and just spend €1.96 and buy the one that sticks on the side of your FV giving very accurate temps of your brew as was fecking suggested to you already on your original order  ;)


http://www.thehomebrewcompany.ie/large-self-adhesive-liquid-crystal-thermometer-10-to-40-oc-p-500.html
Title: Re: Digital Thermometer
Post by: Hop Bomb on January 01, 2013, 03:20:54 PM
I agree with Tube re: IR thermometers- They arent that accurate. I use one for checking the surface temp on t-shirt prints on their exit from the conveyor dryer (im a screen printer). I dont need a huge deal of accuracy with it so its fine for that.

On my last brew (my first ever AG brew) I used a probe thermometer from a multimeter. Turns out it was a whole 12[ch730]c out & I mashed too hot & spoiled the whole batch. So I picked up 4 cheap glass thermometers from HBW & a probe thermometer from Tommy Varden Catering supplies. Ive not tested the probe yet for accuracy but they can be calibrated.

Is there an ice bath test or something that you do for that?

Title: Re: Digital Thermometer
Post by: Greg2013 on January 01, 2013, 03:34:00 PM
Ciderhead i have one of those coming in the order anyway but like tube i don't think they are a long term item. I would not have much faith in  them past a few months tbh, they are just not too robust. i am only asking for longer term purposes.

I would like to be able to leave a thermometer probe in the brew while its fermenting and have a digital readout outside all without risk of cross contamination, thats all :'(

Title: Re: Digital Thermometer
Post by: Ciderhead on January 01, 2013, 03:42:07 PM
Quote
Quote
http://www.thehomebrewcompany.ie/large-self-adhesive-liquid-crystal-thermometer-10-to-40-oc-p-500.html
I got one of those and it worked for a while but doesn't change colour at all now. What are other people's experiences of these?


I have one on every one of my 10 fermenters 4 carboys and boiler, the boiler one as you would expect is rough but still reading but on my fermenters as good as the day I bought them, and I have 3 other digital thermometers, one is professional for work(€250) and my experience with thermometers on eBay is that when temps get above 70 they go right out by as much as 10 degrees.
Title: Re: Digital Thermometer
Post by: Ciderhead on January 01, 2013, 03:45:07 PM
Quote

Is there an ice bath test or something that you do for that?


A small amount of water with a load of ice cubes and probe sloshing around will get you to zero.
Rolling boil in a kettle for other end.
Title: Re: Digital Thermometer
Post by: Ciderhead on January 01, 2013, 03:58:14 PM
Quote
Quote
I have one on every one of my 10 fermenters
John, do you think you might have a problem with fermenters?  :o


I will give that question the same look my missus gives me when I ask her about handbags and shoes :)
I got 5 free with wine kits from NHC and HBW, didn't use them for wine though!!
Title: Re: Digital Thermometer
Post by: JimmyM on January 01, 2013, 08:22:10 PM
QuoteI agree with Tube re: IR thermometers- They arent that accurate. I use one for checking the surface temp on t-shirt prints on their exit from the conveyor dryer (im a screen printer). I dont need a huge deal of accuracy with it so its fine for that.
we must have a chat to see can you beat the price we get the nhc t-shirts printed at... Whos the minister for t shirts these days? Spud?
Title: Re: Digital Thermometer
Post by: Hop Bomb on January 02, 2013, 01:22:16 PM
Yeah Id love to print for ye & Ill do the forum a brilliant deal. Ye can view my work here http://www.KillerTees.ie  (sorry if that seems spammy - its not meant to be)