Search found 785 matches

by PeeBee
Wed Aug 05, 2020 2:48 pm
Forum: Brewing Equipment
Topic: Chinese 8mm threads (temperature probe)
Replies: 15
Views: 828

Chinese 8mm threads (temperature probe)

I've an Inkbird PID. I need a stainless steel probe for the PID to fit into a HLT vessel, preferably RTD (PT100) type. Lots of probes on eBay, all from China. First one rusted all over within days. Second one remained shiny! But the nut attaching it rusted dramatically; it certainly isn't stainless ...
by PeeBee
Thu Jul 09, 2020 9:53 am
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Reference Density (Caveats?)

One problem I've had drawing together all this stuff about hydrometers: The theory is fine and it is all working as expected. But in the real world? It seems the (UK) scientific world is seemingly very much hanging on to the 60/60°F standard (hydrometers comply to a 15.6°C calibration and 15.6°C wat...
by PeeBee
Tue Jul 07, 2020 9:39 am
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Reference Density (Part 2)

Just to expand on this subject of "reference density" to help you (and me!) understand it, here's some real-life examples of it applying. And yes it is applied to your hydrometer! But a hydrometer may be stuck with a scale using one reference density (e.g. home-brewing hydrometers). As a key: My pyc...
by PeeBee
Sun Jul 05, 2020 11:48 am
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Reference Density

I'll list a few water reference densities you might come across (so I can refer to this record too!): Pure water @ 4°C (3.98°C) is 1.000g/ml (the default for laboratory or "scientific" hydrometers). Pure water @ 60°F (15.55 or 16°C) is 0.999g/ml (older and perhaps some country "default" hydrometers)...
by PeeBee
Sun Jul 05, 2020 9:15 am
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Re: Hydrometer? Refractometer? Or something better?

For anyone else's benefit (I guess this is a geek only zone now?) … I'm not trying to emulate a hydrometer messing with pycnometers. Hydrometers emulate what a pycnometer can do! Hydrometers are more convenient for most people (not me) and hide away concerns about "reference densities". But as a res...
by PeeBee
Sat Jul 04, 2020 11:37 am
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Re: Hydrometer? Refractometer? Or something better?

The issue I've had with refractometers is not the brix scale or even the effect of alcohol, but how massively they have been affected by wort colour. They're fine with most pale worts of course, but it seems like a different correction factor is needed for almost every shade once getting to things ...
by PeeBee
Fri Jul 03, 2020 6:53 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Re: Hydrometer? Refractometer? Or something better?

Goodness-have you ever thought about getting counselling, PeeBee? Don't be silly. The counselling sessions came to an abrupt stop in March. Probably because half the nation suddenly needed counselling. The nett result being everyone on this forum gets me in the raw. And I guess I'll just be getting...
by PeeBee
Fri Jul 03, 2020 4:56 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 2657

Re: Hydrometer? Refractometer? Or something better?

Just when you thought no-one will mention "pycnometer" again … I'm back! #-o This time dealing with something well outside the ability of a home-brewing hydrometer. The SG of this liquid is very high and I'm switching to 4C water reference for this. It will show up one of the discrepancies in my ear...
by PeeBee
Sat Jun 27, 2020 3:18 pm
Forum: Yeast
Topic: WLP002 starter
Replies: 15
Views: 972

Re: WLP002 starter

… I saw no frothy head I'm familiar with from other yeast starters … I rarely get a "frothy head" on my yeast starters. I always consider such things as indicating I've got the stirrer going too slow and/or I've left it too long. The piccie is a WLP002 starter I used some time ago. It's just a bliz...
by PeeBee
Sat Jun 20, 2020 6:04 pm
Forum: Brewing Equipment
Topic: Maxi110 cooler meets Grainfather Conical Fermenter
Replies: 36
Views: 1856

Re: Maxi110 cooler meets Grainfather Conical Fermenter

... Anyway, you forgot the most important part of my post. Where are the nuts!!!! Guy Ah ... okay. Is that better? 20200620_160816_WEB.jpg 'Tis worrying though, I'm down to my last 1/2 cwt. And I don't get another subscription delivery for 3 or 4 weeks. Anyway. Keeping the thread on track, the beer...
by PeeBee
Fri Jun 19, 2020 8:23 am
Forum: Brewing Equipment
Topic: Maxi110 cooler meets Grainfather Conical Fermenter
Replies: 36
Views: 1856

Re: Maxi110 cooler meets Grainfather Conical Fermenter

... Yeah, I think the agitator and pump are the same thing. It's a propeller, not an impeller? Actually I've no idea what I'm talking about there! Enlighten me, please. … This is written off top of me 'ead (damn, where did I leave the "top of me 'ead" …), not off Wikipedia as I usually do. So it is...
by PeeBee
Thu Jun 18, 2020 6:03 pm
Forum: Brewing Equipment
Topic: Maxi110 cooler meets Grainfather Conical Fermenter
Replies: 36
Views: 1856

Re: Maxi110 cooler meets Grainfather Conical Fermenter

No worries about changing the schematic, Jef, play away! The concern I had about using the python pump in the way you have was because of my (perhaps erroneous) belief it needed to be on all the time to stop the ice bath completely freezing up into a solid block. Hence using the coil in the ice bat...
by PeeBee
Thu Jun 18, 2020 5:33 pm
Forum: Brewing Equipment
Topic: Maxi110 cooler meets Grainfather Conical Fermenter
Replies: 36
Views: 1856

Re: Maxi110 cooler meets Grainfather Conical Fermenter

On a similar (near identical) vein I did a similar hack. But cheated a little by investing in the lead from GF for interfacing with their hyper-expensive glycol cooler. It then uses the GF's own controller to do the temperature control. It needs a 12V relay to switch the shelf cooler on and off (min...
by PeeBee
Thu Jun 18, 2020 7:33 am
Forum: Dispensing
Topic: "Real Ale" style dispense - new regulator?
Replies: 3
Views: 593

Re:

Interesting! How much pressure would beer engines handle without leaking? What primary CO2 pressure would you recommend? I don't know! My pumps (Angram CO and CQ) complain audibly when subjected to 4-5PSI (judder, creak, etc.). The demand valves I use are rated for 45PsI! But high pressured beer fr...
by PeeBee
Tue Jun 16, 2020 4:04 pm
Forum: Dispensing
Topic: "Real Ale" style dispense - new regulator?
Replies: 3
Views: 593

"Real Ale" style dispense - new regulator?

Established forum users probably already know of my preference of using variable LPG regulators over "breathers" for dispensing "Real Ale" style home brew (emulating "Real Ale", which is otherwise impossible to re-create at home; unless you've plenty of mates to help see off a cask in rapid order). ...