Search found 741 matches

by PeeBee
Thu May 07, 2020 9:50 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 1703

Re: Hydrometer? Refractometer? Or something better?

… I use a refractometer before fermentation and a hydrometer once fermentation is underway Double the trouble! I've described why I don't want to use (can't use?) either of those instruments, and suggested what I might think of anyone suggesting those instruments are the ones to use. But I suppose ...
by PeeBee
Thu May 07, 2020 1:37 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 1703

More proof?

VERY IMPORTANT! Don't let all this prattle put you off trying a pycnometer. I'm only trying to prove that the SG they return is true, not illustrate what you need to do to use one. Well, I don't seem to have caused controversy yet (give it time!) but I'm slightly worried that I've been taking liber...
by PeeBee
Tue May 05, 2020 7:34 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 1703

Real life usage

This is for real! No mathematical proofs, just no fannying about, let's just get on with it … 20200505_184658_WEB.jpg We must have those numbers: The weight of the bottle (18.28g) and the weight of water (26.31g at 20°C) it holds. 44.84-18.28 = 26.56g (weight of beer sample) 26.56/26.31 = SG(20°C/20...
by PeeBee
Tue May 05, 2020 6:18 pm
Forum: Brewing Equipment
Topic: Tilt hydrometer review
Replies: 92
Views: 8271

Re: Tilt hydrometer review

As promised, I posted up my pycnometer musings here: viewtopic.php?f=6&t=82494&p=850237#p850237
by PeeBee
Tue May 05, 2020 4:56 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 1703

"Specific Gravity" and reference samples

I've put this in a separate post 'cos it's so kooky you might want to skip it! I'm not even confident I'll get this right! Density is very specifically mass (weight) divided by volume (we'll use g/cm³ here, or g/ml, but it could be converted to kg/litre or whatever units are convenient). Specific Gr...
by PeeBee
Tue May 05, 2020 2:47 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 1703

Pycnometer

Fancy name, but a pycnometer is just a bottle with a hole in the stopper. There are fancier versions with built in thermometers, even very expensive digital ones, but the simple bottle at room temperature is good enough. 20200504_130825_clip.jpg Pictured is one that is tiny at 25ml, about as small a...
by PeeBee
Tue May 05, 2020 1:07 pm
Forum: Brewing Equipment
Topic: Hydrometer? Refractometer? Or something better?
Replies: 31
Views: 1703

Hydrometer? Refractometer? Or something better?

I've been promising this writeup for sometime. Now I've got it altogether (...ish) it's time to bug you all with it. I've always voiced a preference for refractometers over hydrometers because they are not so easy to break (either by dropping or having too hot a sample). Err, I should say here that ...
by PeeBee
Thu Apr 30, 2020 12:40 pm
Forum: Brewing Equipment
Topic: Tilt hydrometer review
Replies: 92
Views: 8271

Re: Tilt hydrometer review

@PeeBee, I'm sorry to say that this counts as "user error". … In my defence I did say "partly my fault". Actually such a mistake is only possible in the TiltPi client because it takes comma-delimited lists as input for calibration. And you need to figure out calibration requires delimited lists 'co...
by PeeBee
Wed Apr 29, 2020 11:37 am
Forum: Brewing Equipment
Topic: Tilt hydrometer review
Replies: 92
Views: 8271

Re: Tilt hydrometer review

Another little issue I had with the Tilt (partly my fault) was with temperature calibration. I'd entered one more entry for "actual points" than I had for "uncalibrated points". The effect was to display any temperature over 20C as 20C. So I saw the temperature as 20C and pitched the yeast (I'd norm...
by PeeBee
Tue Apr 28, 2020 2:47 pm
Forum: Brewing Equipment
Topic: Tilt hydrometer review
Replies: 92
Views: 8271

Re: Tilt hydrometer review

Gosh, Peebee, it seems ages ago you talked about getting a pycnometer! When do you reckon you'll get one? … The estimate is 6-May to 1-June (it's coming from China). It was "ages". I'm just a bit persistent. Always takes forever; always get there in the end. (EDIT: Just looked at your link. Nay, I'...
by PeeBee
Tue Apr 28, 2020 12:53 pm
Forum: Brewing Equipment
Topic: Tilt hydrometer review
Replies: 92
Views: 8271

Re: Tilt hydrometer review

This fudge is recognising the Tilt is entirely useless for measuring OG and FG. But also recognises the Tilt is a useful (but not essential) tool for monitoring fermentation. This seems a little harsh. … I didn't think I was being "harsh", realistic perhaps and I was still able to say the Tilt was ...
by PeeBee
Mon Apr 27, 2020 7:32 pm
Forum: Brewing Equipment
Topic: Tilt hydrometer review
Replies: 92
Views: 8271

Re: Tilt hydrometer review

Cor, someone's awoken my old "Tilt" thread. Here's where I'm at: I recalibrate in water whenever battery is changed as before, but (cunning plan) I subtract 0.002 from the reading (so if Tilt is measuring water at 1.000, I enter a calibration point of 1.000 = 0.998). This allows for the build up of ...
by PeeBee
Fri Apr 17, 2020 11:53 am
Forum: Malts and Grits
Topic: Malting technology
Replies: 1
Views: 372

Re: Malting technology

Interesting read (if you have the stamina, it's quite big). I always thought Crisp were a bit "contemporary" with their products and this perhaps explains the reason? I never understood the reason for UK home-brewers to pick "Continental" and American malt products over the British products (yes I d...
by PeeBee
Sun Apr 12, 2020 12:33 pm
Forum: Yeast
Topic: wyeast 1187 ringwood
Replies: 36
Views: 3692

Re: wyeast 1187 ringwood

Fermentation certainly finished, more difficult to see it happen with such a sedate (but exceptionally steady) fermentation. PedwarDegNawGraph.JPG (I was a bit late starting this graph, SG was 1.047, so it's missing the first few hours. There is an "anomoly" after 0:00 9th April that is due to lost ...
by PeeBee
Sat Apr 11, 2020 6:14 pm
Forum: Yeast
Topic: wyeast 1187 ringwood
Replies: 36
Views: 3692

Re: wyeast 1187 ringwood

I won't have to worry about "stall". More like "is it going to stop now?". 1.011 is a bit low in my book, but it is showing signs of plateauing. I'm currently digesting all those ideas I've been fed. O2: I gave it all of sixty seconds, which some folk would laugh at but its doing exactly what I try ...