I have 2 mash tuns. The smaller one we used for the second stout (Hoary Hedgehog) and I think it is 5 gals. The larger one at home I think is 10 gal. But if you are bringing your own larger one, awesome!
I'm giving very serious thought to converting the kegs.... A false bottom, sparge arm, pump for recirculating, propane burner solenoid with igniter, all under Arduino control, speaking USB serial to a Pi that is running EPICS, possibly with a HERMS style system.... Temp probes in the tun and flow lines, possibly a flow rate encoder. We'd need a thermocouple for safety to make sure the propane is lit, and stays lit.
You pitched TWO smack packs and it still stuck?!?!? Wow. I'm definitely interested in whether a racking restarted it. And I am waiting with anticipation for Tuesday when we rack Hoary and check the gravity....
That seems short for a mash. I will have to look into BeerSmith.
I was only referring to the mash getting stuck with the 3# of libby's canned pumpkin. That stuff is pretty thick and messy :P
Good call on the mash tun, but question: how big is the tun that you're using? I got a 10gal rubbermaid cooler myself, and I've done a couple RIS's that barely fit, so we should be fine. Are you rocking a 5gal?
I know, the crystal is a bit wacky, but i'm trying to get rid of my one-off amounts of it. I think it'll end up being OK. I'm also going to probably swap out the Cascade for something a bit less spicy, we'll see. Also, for the adjuncts, I've got .5 tsp of:
I also have another version with Cloves added, but I'm not liking the scent of it - clove scents overpower the other spices I'll bring both and see what others think and we'll go with what we all think would be good.
It shows the mash in the "Brew Steps" portion - but just to get it out there:
Mash in at 156 (full body) with 3.75 gal of water, mash for 45 minutes (but I've always gone an hour, silly software)
Boil 6.5 gallons of water - pre-boil grav is 1.064
Boil down to 5gal, grav = 1.073 (est abv 7.8%)
As for the suspended fermentation on the first beer:
>* Adequate wort aeration when transferring to bucket?
>* What kind of yeast was used? Was a starter used? How hot was the wort when the pitching happened? Problems pitching could do it.
Double pitched wyeast 1084 smack packs. Both packages were nice and plump when we pitched. Wort was "chilled", but we didn't check the temperature. With extract brews you typically have ~2 gallons of wort, that we dropped temp with a immersion chiller for a good 20 minutes, and we poured in 3 gallons of cold water, so I didn't even think to check the temp. That may have kicked us in the ass :P
>* Did the recipe have lots of unfermentables? Did it have adequate yeast nutrients?
I didn't bring any of my nutrients, moss, or even water chemicals, this was a very back of the envelope brew. However, I don't think their absence effected fermentation (my personal opinion). One thing to note though, is that this kit was kind of "old" so the ingredients weren't the most fresh. This may have a bit to do with it, but we also forgot to check OG, so we're not even sure if 1.018 is "good" or "bad". WOOPS.
>* Fermentation temp was initially high until we got Chillmon working. Usually too low cold shocks yeast, and sticks the ferment. (But too high is bad too; produces off favors.)
Right, if it was too cold the yeast would have dropped right out. So i'm not sure if this to blame either.
IT'S A MYSTERY! We could just drop in another smack pack if we want. I'll check the gravity tomorrow and let you know where it's at.
Sorry I'm not going to be able to make it. Assuming brewing happens....
I never have had a stuck mash before using the same recipe. My guess on what happened was that during the dough in, someone else was stirring vigorously, and I never explained the false bottom concept. I think it got tipped, and mash got under it, plugging it. Oops.
What software are you using? Looks seriously cool but I don't see a mash schedule listed with temp and water amount.
Also, that's 13 lbs of grain/adjuncts. So far I've only done 8 lbs in that cooler with 2 2/3 gal water. I have a second Gott cooler, twice as large, for high gravity beers, that I'd be very happy to bring in. (The original owner wanted it for barley wines.) But it is at home and I'm in Portland. (Hey, any hacker spaces in Portland? I've already discovered Powell's Books, which is a hacker's wet dream. Shelves of tube amp books, stuff on Arduino, stuff on machining.... I've never been in a book store that large!) So I don't know the upper limits on how much my mash tun can hold.
Another factor to consider: It seems beer #1 had a stuck ferment, at 1.018 at racking. I'm hoping it will resume in the carboys now that the yeast is stirred up. But I'm thinking what could have happened, especially from others because I wasn't there. Some thoughts on possible causes:
* Adequate wort aeration when transferring to bucket?
* What kind of yeast was used? Was a starter used? How hot was the wort when the pitching happened? Problems pitching could do it.
* Did the recipe have lots of unfermentables? Did it have adequate yeast nutrients?
* Fermentation temp was initially high until we got Chillmon working. Usually too low cold shocks yeast, and sticks the ferment. (But too high is bad too; produces off favors.)