So I've spent the last few months building out my 1bbl brewery, located inside of my spare bedroom and aptly named the Bedroom Brewery!
I'll be updating this thread as a means of showcasing everything I've done and hope to get some of your feedback and participation as I venture into all grain brewing. I have about 8 years of extract brewing experience but only now am jumping into all grain! I will have plenty of questions and thank you all in advance for your expertise!!
Did not add 500mg potassium metabisulphite to 40 gallons water to remove chlorine/chloramine, as I am using RO water.
Ca=50, Mg=10, Na=16, Cl=70, S04=70 : Target Water Treatment Profile
Ca=00, Mg=00. Na=21, Cl=17, S04=00 : Values from Ward Labs test of RO water
Ca=50, Mg=10, Na=21, Cl=80, S04=80 : Values based on following Water Adjustment guide and adding the following:
11:15AM: Start HLT element with 40 gallons of water, HLT PID set to 149F
11:56AM: Turned on H2O Pump for HLT Recirculation (also needed to measure temp due to external probe in tee)
11:58AM: Reached 149 Target
Strike Water calculation = 1.5 quarts/pound mash thickness:
Strike water = (Mash Thickness * Pounds of Grain / 4) + dead space under false bottom + liquid in HERMS + hoses
= (1.5 * 36 / 4) + 0.76 + 0.7 = 14.96 gallons
12:10PM: Transfer 14.96 gallons from HLT to MT
12:20PM: MT recirculating through HERMS to match HLT Recirculation @ 149F
Mash Tun seems to peak at 145F, jumping as low as 142F but never reaching 149F
12:31PM: MT still not hitting 149F, sitting around 147F with jumps down to as low as 143F
12:34PM: Seems to stay at 147F and i decide it may be something up with the temp probe so I proceed...
12:35PM: Added 60% grains & water treatment salts (not 100% due to only having 1 bucket to catch and transfer)
12:42PM: Added remaining 40% of grains and mixed well
12:51PM: Testing PH using the Milwaukee Instruments MW102 PH and Temperature Meter, I am hitting much higher numbers then expected. Brew day instructions say to aim for a PH of 5.2 - 5.4. I am seeing PH firstname.lastname@example.orgC on first test. I re-calibrate and test again with similar results. I begin to add 88% lactic acid half a milliliter (mL) at a time using a 1mL (1 cc) syringe and see the following results:
email@example.comC firstname.lastname@example.orgC email@example.comC firstname.lastname@example.orgC
At this stage, I have added quite a few 1mL full syringes of lactic acid and decide there may be a calibration problem and don't want to overdue it. I stop here.
1:15PM: MT recirculation of mash through HERMS. Mash Tun: 136-138 degrees while HLT is 149-152. The large variance between MT and HLT seems consistent and I start to worry about the accuracy of my temp probes.
1:16PM: I start timer for 90 minute mash. Due to sitting almost 40 minutes while I played with the PH, i decide to aim for less time.
1:18PM: Mash Tun temp still not raising much above 138, so i raise HLT first to 155 then 158
1:35PM: Noticed mash tun spike to 155 and then 30 seconds later down to 148. Seems the temp probe has been all over the place and wondering about probes and if setting the MT temp does anything at all, since it's the HLT with the elements in it.
1:50PM: set HTL and MT to 149
2:01PM: they now both hover between 152-155
2:11PM: added additional lactic acid to HLT to hit 5.6-5.8 PH goal for sparge water
2:25PM: raise MT to 168 for mash out. seems setting HLT to 172 works best for this... maybe
2:55PM: start sparging. Fill BK until 29.8 gallons
Liquid lost to grain absorption = Pounds of grain * 12%
= 36 * 0.12 = 4.32 gallons
Sparge water = Pre-boil kettle volume + Liquid lost to grain absorption - Strike water
= 29.8 + 4.32 - 14.96 = 19.16 gallons. Not sure why i measured this since I will just be fly sparging...)
4:01PM: BK Filled to 29.8 gallons. PH Test: 54.8 @ 47C
(66 minutes to complete, water level during sparge was 1-3 inches above grains most of the time with a few exceptions fixed by adjusting and matching the rates. This was especially different at the end with close to 6" above the grains, woops!)
4:08PM: BK Flame On, Gravity measurement taken using Hanna HI 96811 Digital Refractometer, i am hitting brix numbers that I believe translate to a very high OG. Brix: 18.5 @ 29.9C translates to an OG of 1.076-1.077.
4:30PM: I double check again, recalibrating the refractormeter using RO water
18.6 at 28.8C. It's higher!! I question my methods of converting BRIX to gravity and decide to continue on...
4:40PM: Boil Achieved. lots of hot break and foam build noticed
4:51PM: I lower the BK elements to 75% and put lid on BK, allowing the steam slayer to do its thing (using 9GPH sprayer)
4:54PM: Lower BK elements to 50% and wait
4:55PM: Boil is not as vigorous as goal so place lid back on
4:59PM: BOIL-OVER!! Lower elements to 40%
5:05PM: lift lid to check and notice foam building and tempting a boil over. my opening it calms this
5:16PM: 5.4oz HOPS ADDED, lid kept off to monitor. Some fresh water sprays to help calm foam
5:21PM: BK element lowered to 38%, lid put back on since Hops seemed to have settle down
5:52PM: BOIL-OVER! ****** the steamslayer till i understand what's going wrong. Element set to 73%
6:11PM: FLAME OUT
6:18PM: Whirlpool Start
6:28PM: Whirlpool Stop
6:38PM: Transfer to conical in one pass through counterflow. Wort output temp probe stays around 89F during most of transfer
7:24PM: Finished transferring wort, conical temp = 88.6F, Keezer Cold Water Loop = 57.7F
8:26PM: Most cleaning is done except BK which i'll soak with PBW for 48 hours. Conical has dropped to 83F and cooling water is 74.9F. I immediately can tell this keezer cold water reservoir isn't going to work well given my ambient temps and the size of this conical. I start to research glycol chillers...
Total KW brew day usage: 33.94KW = $12.73 _________________ painfully aware of his inexperience and the questions that come due to it...
Joined: 12 Dec 2010 Posts: 9726 Location: Ottawa, Canada
Drinking: German Lager, Electric Hop Candy Jr, Scottish 70/-, Janet's Brown, Maibock, Kolsch, Russian Imperial Stout, Black Butte Porter
Working on: West Coast Blaster (American Red IPA)
Link Posted: Mon Mar 11, 2019 11:11 pm Post subject:
Thanks for posting!
One thing caught my eye:
Total KW brew day usage: 33.94KW = $12.73
How did you calculate the KW used? Where are you located? What is your electrical rate? The US average national rate is about $0.12/kWh so about $4 not $12. Even $4 seems high. I only do about 13-14 KWh to brew 10 gallons so $1.60 in electricity to brew 10 gallons.
Link Posted: Mon Mar 11, 2019 11:27 pm Post subject:
Oh i wish I was wrong. I'm on a tiny island in the Caribbean that gets all it's energy from big diesel generators - we're considered some of the most expensive commercial electricity there is... so sadly my math on KW is the one thing i'm confident on.
To measure, we use pre-paid keypad meters so I monitored and recorded energy usage through out the entire day. What's even more concerning is the fact that I used another 70KW in the 10-12 days since transferring to the fermenter to keep things cool. Seems the glycol chiller is absolutely my next purchase...
something i had still meant to add above is my Tilt hydrometer log, which helps show an OG far closer to what I expected to see. So i still need to figure out that Refractometer and BRIX conversion... _________________ painfully aware of his inexperience and the questions that come due to it...
Last edited by alphakry on Mon Mar 11, 2019 11:30 pm; edited 1 time in total
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