Mash tun thermometer

[Inoff the Red]

Having taken the plunge and ordered a SS insulated marmite for use as a mash tun (off the French ebay site) I am now thinking about how best to add a thermometer so that i can monitor the temperature without removing the lid and sticking my thermometer in.

I had thought of a Brewmometer or something similar but wondered if anyone has already done this yet and, if so, whether it worked.
My concern with the brewmometer is bridging the gap between the inner and outer wall of the tun and whether the temp probe would be big enough to take accurate readings.

Any input gratefully received.

 

[markp]

Personally, I don't think it is necessary to fit a permanent thermometer in a mash tun.

I have a 50 litre thermopot and when I have doughed in....I simply take the temperature with my digital thermometer, adjust if needed and then pop the lid on and forget about it for 90 minutes.

Over a 90 minute mash, I generally lose 0.1 - 0.2 degrees C......not worth worrying about or monitoring in my opinion.

Happy brewing.

 

[prolix]

don't worry as mark said test it before hand then pop the lid on.


When you go RIMs you can temp control that instead :twisted: :twisted:

 

[Inoff the Red]

Thanks Mark,
Must admit that I didn't really fancy punching holes in a new bit of kit.

Pro,
RIMS!!!!! Errrrrrr nooooooooo!!!! Be a matter of time before a pipe came loose and it all ended up on the kitchen floor lol.

 

[mr_spin]

likewise I recently bought a 50L thermobox and wanted to fit a mashmaster temp guage but decided against it now due to complexity.

I have a glass thermometer attached to some fishing line and leave this inside the tun - I take a measurement at the start and at the end.

 

[broadfordbrewer]

I have a glass thermometer attached to some fishing line and leave this inside the tun - I take a measurement at the start and at the end.

Each time you reel that thermometer in, do you pretend you've caught a big one? :lol: only to find it took your bait.... AGAIN! :rofl:

 

[dan_loves_beer]

I fitted a mashmaster thermometer to my 50l marmite, and I agree its not necessary, especially now I'm going straight to herms. Took a lot of effort to fit that bloody thing too

 

[Aleman]

I love having a thermometer in my mash tun (Which is a thermobox). I use a SS 3mm Compression Gland with a 10mm thread on the inside. . . . Yes you have to drill a 25mm hole in the outer skin, and use some sort of sealant (Or a damn good o Ring), and it's a bit Fiddly . . . I didn't go for those Big Dial Ones Though but use these

which I got from Thermometers Direct



. . . . And I have a HERMS Unit

 

[drut]

My 70 litre Nordic Thermobox came with a Mashmaster fitted, large hole in the vessel outer and fitted just above the false bottom (self fab.). If it had not had one, I would have fitted either a Dial type or one like Aleman's.
I use RIMS (but the setup is permanent, so very small chance of leakage :) ). The sensor is in the return manifold (due to inertia) so the top of the tun can vary somewhat from the bottom. At mash-in (underlet) they are very similar, but during the ramp up for mash-out to 77C (or during step infusions) the temperature at the top will be higher than the temperature at the bottom until the whole thing stabilises.
So being able to see the difference in temperature with two different sensor types is extremely informative.

 

[bones]

I have a large dial one fitted to a 80L nordic thermobox and am extremely pleased as i dont fiddle aroung with electric PID stuff....

MuddyDisco fitted it and its perfect :thumb: :thumb: thanks again MD

 

[Vossy1]

I've got a 8oltr thermobox and tend to use a removable PID based thermometer to measure the mash temp. Once you've got used to your system after a while you won't need a thermometer in the mash as you'll be confident in what's going on.
Couple with that, that you can use a 'roving' pid based thermometer to measure anything you want, grain temp, wort temp, yeast starter temp etc etc, it could save you some money NOT using a fixed thermometer :thumb: