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I thought he was referring to LC's hydrolysis probe...

The control and 1 tasted identical, to be honest both were only 'ok' as they were a bit dry. Number two ended up with an aceto infection, while number 3 was flat (flavour wise) and interestingly had basically no head retention - very much an odd occurrence with my beers. I still need to do a...

Pfft, what would you know? Not like you can brew a comp-winning IPA... You know, I was going to say "except for US-05" but then even that benefits from more cells, having a faster take-off and hitting FG in 3 days... but of all the strains it definitely seems to be one of a handful that can...

Yep, but you want to be quick... and it may that be that the yeast survives, but throws a heap of esters and some nastier flavours like acetaldehyde or fusel alcohols. Basically you should be aiming for signs of fermentation within 4-12hrs of pitching. Longer than 24-36hrs and something else...

I have heard that term a lot, and thought it referred to 'sticking and friction', primarily with control valves - eg rough movement, sticking, holdup/overshoot. I'm pretty sure that's why they invented C4 - seems like a less painful way to deal with that stuff. FFT analysis gives me a semi. I...

Shouldn't we see more 'energy' when it's running though, i.e. more crunching, vibration, when it's up to speed? Hence my pretty poor query about whether it's more of a rasping. I'm also surprised that something behind the magnetic sleeve - which is directly coupled to the shaft - has such an...

:o :o don't do it! God has blessed mankind with the ability to convey fluid by plugging a black hose into a wall socket, so why not use it?

Do the bearings go in these things? Is it just one of those probability things that 1 pump in xx won't have enough grease and will run dry? Crunchy could be Coco pops too. Or cockroaches. Could be raspy rather than crunchy.

Hopefully there's not something behind the magnetic sleeve. There could well be if there is friction or sticking when you try to spin the sleeve without power, including in various orientations, pushing in/pulling out, etc. Oooh, this is exciting! I want to rip my pump apart again and see if...

Yeah that's the one. If you just went like for like that's ok, I can't remember if there's a capacitor there though. If the capacitor was shot - from overheating during soldering? - or there was a dry connection anywhere on this secondary winding, it would have issues starting. And I don't mean...

You say you rewired it... Did you touch the starting winding at all, where that tape is? It should have four wires plus earth (two of which are the starter windings, 90° out of phase).

This is what is inside the housing, and what you need to check: Not pictured is the housing with the threaded nipples and vortex breaker bar thingy.

You will find that there is a vortex breaker on the inlet, there is an impeller, seals and the magnet assembly in this chunk of black plastic. Pull the whole black plastic assembly apart, make sure there is nothing stuck in these pieces, then reassemble. Shit always gets caught between the...

Does it need a few starts to get going without the impeller housing screwed on, or you only need to do this with the impeller housing on?

Have you actually taken the impeller housing completely apart though, impeller out, etc?

I'm guessing you've completely pulled apart the impeller housing?

I just don't think that Carapils adds anything. You want grain, bread, malt, toast in this beer, and carapils doesn't really give any of that - or anything really... - while pils certainly will, and Munich will too... Though yeah maybe just 10%. A quick calc for the yeast suggests ~500bn cells...

Yeah I'd be leaning towards what MHB and labels say - get the maltiness from a 1.060 starting gravity, 90min boil - which you've planned - and a suitable yeast. S-189 might be fine, but 50g is probably a better amount - or two packs in a couple of starters. Malt wise, ditch the cara-pils. I...

Yes exactly - it's quite likely that with a lot of systems some of the sodium bisulphite won't be oxidised, hence my inclusion of CO2 purging, yeast/LME in the strike water and ascorbic acid so that I can reduce the SMBS. I'm more in the 20mg/L range than 100mg/L.

And so for ascorbic acid, C6H8O6 and 176g/mol we're looking at: 2C6H8O6 + O2 >> 2C6H6O6 + 2H2O (plus some dissociating in water and getting to the same end products?) or 32mg of O2 will oxidise 352mg of ascorbic acid, requiring 11mg/L AA for every 1mg/L O2 I think like many things a couple of...