Ideal Time To Record Mash Temperature

[Guest Lurker]

Must say it all looks very professional, however it's still a long way between a sexy graph and a good bottle of beer.

Clearly you havent tried Robs beers.

 

[chappo1970]

Sorry Rob,
I would like to see your recipe vs the graph, in other words:

Protein Rest @ 50C 10mins
Sacc @ 67C 60mins
Mash Out @ 78 10 mins

Just something to compare the data to is all. This is the type of information I would like to get a grasp on now I have kind of reached that point in my brewing much like you I suspect? I have just completed the first major brewery upgrade by adding a HERMS and now looking a little more forward would like to tinker with this kind of stuff.

Only just starting to get back into electronics and I'm keen to learn how some of this technology can be applied to my brewing especially the arduino. I'm not chasing a fully automated brewery but I would be keen integrate certainly the measuring and data logging and using that info for better brewing.

Great idea and project BTW thanks for sharing.

Cheers

Chappo

 

[randyrob]

Hey Chap,

Ahh ok i'm with you now. Yes just a single infusion mash w/mashout

I had my system settings as follows "desired mash temp" set to 67*c for 60 minutes and "mash out temp" set to 76*c for 10 minutes

the system calculates the strike temp for me. after 10 mins It settled in at 66.8*C but as you can see i gradually lost a bit of temp during the mash,

but you get that when you're doing a 20L batch in a 80L Mash-tun!


Rob.

 

[chappo1970]

Ahhh! Ok that makes sense.

Now I need to find some bits and pieces to make me one I feel. Where's a good place to start Rob?

Cheers

Chappo

 

[randyrob]

Hey Mate,

It shouldn't really take alot of effort to get the temp monitor / logging going all your going to need is

at least one or two temperature sensors, Dallas DS18B20 (you can get free samples from maxim website or they are a couple of bucks off ebay)
1 x arduino compatable microcontroller
1 x 4.7K resistor
some wire / solder / heat shrink / thermowell (could use a dip tube, racking cane...) etc

from there you could add a ssr to your hlt and get some temperauture control going, it's quite flexible.

for the microcontroller i grabbed one of these

http://spiffie.org/electronics/archives/mi...0Freeduino.html

which is serial, becuase i run the microcontroller in the shed, its quite a distance from the computer in the house.

but if you wanted USB to plug into a laptop or something, this would do the trick

http://spiffie.org/kits/freeduino2009/

as you can see everything is dirt cheap even if u were a real scrooge you could get something up and running for nix!

Rob.

 

[randyrob]

another couple of batches down, this one was done with the lid off the hlt so a much more gradual climb.