So this Sunday is the inaugural brew day on the BIAC. Couple questions for those that have brewed on the BIAC before -
Do you set your strike water temperature to the same temp you mash at? Or do you raise it per Beersmith/brew program calculation? I believe Nathan on the video demonstration sets the strike water at the same temp as the mash, but I would think that would cause it to fall 10-15 degrees and take 10 or so minutes of reciruclating to heat the mash back up to proper temp, meanwhile thinning out your intended mash. Thoughts?
And also, what gap settings do you have your grain mills at? Mine is currently set at 0.030" which I'm afraid might be too fine and clog up the colander via cavitation.
I'm also interested in this answer. In my diy verssion which is the same concept w/o the built-in conical, I typically only heat my strike water to about 3-degrees over the desired point. That is because there is the full volume of water involved and the temp does not get "diluted" as much.
So this Sunday is the inaugural brew day on the BIAC. Couple questions for those that have brewed on the BIAC before -
Do you set your strike water temperature to the same temp you mash at? Or do you raise it per Beersmith/brew program calculation? I believe Nathan on the video demonstration sets the strike water at the same temp as the mash, but I would think that would cause it to fall 10-15 degrees and take 10 or so minutes of reciruclating to heat the mash back up to proper temp, meanwhile thinning out your intended mash. Thoughts?
And also, what gap settings do you have your grain mills at? Mine is currently set at 0.030" which I'm afraid might be too fine and clog up the colander via cavitation.
My inaugural was last weekend. I just used an online mash calculator, plugging in the water temp and amount of grains. Given it was a very loose mash, I think I doughed in with the water 5 degrees above my target temp, and hit it perfectly. My grain mill was set to 0.038", and my efficiency was in the mid-70s with an hour mash that was constantly being recirculated. Remember you're probably not using the "normal" amount of strike water you're used to using (unless you were a BIAB person before).
Only issues I had the entire brew day was (1) getting a sweet spot on the rate of recirculation. By the end the valve was barely open, as anything more was causing too much to be drained from below and I worried about dry firing the element. And (2) forgetting to ramp down the power control on the element once I hit strike temps... halfway through the mash I realized this. Taking it from 100% down to 25-30% meant that when it kicked on after mash temp fell one degree it didn't overshoot and end up being 2-3f over the target mash temp. First time brewing electric, trial and error!
You don't need a reservoir larger than the jacket because you fill the jacket, plus the reservoir.
Following my boil, I do the following:
1)Connect the solenoid to the input of the jacket, and connect tap water to chill hot wort. I let the tap water chill to about 80*F and the solenoid shuts off flow at that point.
2)Disconnect solenoid and tap water (jacket is full at this point) and connect glycol chiller to input & output of the jacket. This means that the glycol chiller is always full, and the jacket is full after doing the large portion of chilling with tap water.
3)Turn the glycol chiller on and continue chilling to fermentation temp from there.
I'm getting a medium BIAC for my garage. So, if I buy a 1/3hp 2300BTU/hr glycol chiller with a 3gal reservoir, that should work fine and the total coolant would be 8gal including the 5gal in the jacket, correct? Also, for $150 more, I can get a 1/3HP, 2600BTU/hr chiller with 7gal reservoir. I need to make this decision.
Another question for you guys with the medium size, the price is now $3340. Did the price go up over the last month?
Final quesiton: which racking arm did you guys get from Stout?
According to Nathan the jacket on the medium BIAC holds roughly 2 gal, not 5. I debated between the same two Glycol chillers before settling on my TK-500, I don't think you can go wrong with either one. I primarily went with the TK-500 for the price, built-in heater for full closed loop control, and the fact I'm only using water instead of a glycol mix.
The medium BIAC was $3340 when I ordered mine about 5-6 weeks ago.
No racking arm for me, IIRC it only pulled out an extra 8oz or so vs without it.
The deed is done. I have now dropped over $5k on new brewing equipment and glycol. I will soon have a lot of brewing equipment available including a 4ft x 4ft fermentation cabinet with a new 5000btu ac unit. I'll probably sell my three SS Brewtech BrewBuckets my big propane setup, kettles, brand new RIMS tube and PID. Somebody will get a killer deal and I'll free up a lot of space in my garage
I just realized I can use my RIMs for heating in winter to keep this thing warm. My basement is all finished and not setup for lots of potential water spillage. So brewing will continue in the garage. I should be able to keep the jacket filled with water and have the jacket connected to the RIMS tube and that in turn is pumped back into the inlet on the 3-in-1 jacket. I ordered the Ranco controller with two plugs for an additional $70. I'll simply plug in the RIMS assembly to that and it will turn on when needed. That should work, right? Here is my RIMS setup:
I also found another less expensive glycol chiller that is 1/6hp with a 2-gal reservoir. I think this will work and the price is actually quite nice. I know the UBC brand is used by commercial breweries including the one where I took the Brewery Immersion Course.
cuda6pak, based on your experience with your new chiller, what do you think about this glycol chiller?
http://rapidswholesale.com/ubc-2-gal-glycol-chiller-1-6-hp-115-v.html
The deed is done. I have now dropped over $5k on new brewing equipment and glycol. I will soon have a lot of brewing equipment available including a 4ft x 4ft fermentation cabinet with a new 5000btu ac unit. I'll probably sell my three SS Brewtech BrewBuckets my big propane setup, kettles, brand new RIMS tube and PID. Somebody will get a killer deal and I'll free up a lot of space in my garage
I have that very valve. I haven't found it necessary. (I just leave it in the conical 3-4 weeks and assume it's finished). Perhaps in the commercial setting it would be useful, as you'd want to know exactly when your beer was finished to improve turn around time.
It seems that the sanitary valves that come with the BIAC have a fitting on the bottom that would allow you to vent / sample however, so it could be redundant, if not as elegant a solution as the sample valve you reference.
Certainly, the quality of that valve is good and it definitely works.
I purchased my BIAC 6 months ago and couldn't be happier. Quality is excellent and customer service is top notch.
I've been using the element to maintain precise ferment temperatures. I built a wall mount controller which has a PID and a DSPR1 from Auberins. I set the temperature to 69 and the DSPR1 to 1% and had no trouble maintaining set point. Delta was around degrees. My guess is the duty cycle was 1%.
If you have it you might as well use it. May be plumb it into your chiller for those days where you have to do both (heat/cool).
I think Nathan is going to offer a DSPR1 in the future,looks like the Ranco plugs into it.
Have you cold crashed with your chiller yet?
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