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Tools of the trade / Oxygenating Wort with Oxygen
« Last post by DanWalters on August 13, 2020, 10:45:02 AM »
This information has been put together by Lee Immins from London Amateur Brewers and with his permission I thought it would be useful to share:

Dan and the team
Here are my notes on oxygen set up
Some background reading :
https:/byo.com/article/aerating-wort-techniques/
https://www.nationalhomebrewclub.ie/wordpress/2013/10/oxygenating-wort-with-pure-oxygen/

And notes comparing the two set ups Ive used

So for oxygenation you need an source of oxygen, a regulator, a connector, ideally a flow meter, some 3/8” beer line tubing (or metal) and a sintered stone (see pic 3485).

There are two options I’ve looked at/used

Oxyturbo disposable cylinders:
These are available in shops or online and can be posted by courier. They are single use. They are sold fairly widely (they are used for welding) and you can get them for about £20 if you buy a few at time and shop around. Here is one: https://www.welduk.com/product/oxyturbo-480300-oxygen-gas-cylinder/, They are 1 litre capacity and 110bars, so about 110 litres of oxygen.

Roughly – 5 (US) gallon brew of normal strength beer takes 1l/min for 1 minute, twice as long for strong beers. So this should do you 50-100 beers but in reality it was somewhat less than that. A good 30 at least (but I do make 33 litre batches). I did sometimes use it on starters, and for strong worts you can re oxygenate after 12-24 hours.

Regulators are £25: https://www.welduk.com/product/regulator-disposable-oxygen-cylinder/ or £35 with gauge: https://www.welduk.com/product/regulator-gauge-for-disposable-oxygen-cylinder/

They come with a small barb which you might fit some line on directly. Or, there is a JG fitting you can buy, cut off a little of the thread, and it screws on directly. See image 3483. I hear the guage one takes a JG fitting without any need to saw a bit off

You can just run the oxygen so you can just see bubbles when you dip the sintered stone in liquid. But its better to have a flow meter. There are ones that have a valve (£9) or ones that don’t (cheaper). You want it to show up to 2l/min (my first one went 0-5litres). It should be for oxygen, although Argon is close enough for what were doing. See pic 3486. The one on the right is much better than the one on the left in terms of build and the smaller range. Both available on E Bay

Plus – easy to order, no deposit, small and compact

Negatives – need something to hold the tank upright really (I used a sawn off measuring cylinder), expensive oxygen

Larger refillable tanks

Available from welding suppliers, I got mine via Adams here: https://www.adamsgas.co.uk/product-category/hobby-welding-gas/

So these cost £46 a refill. They are 10 litre 200 bar – the same as 18 disposable cylinders (for the price of 2 of them).
However, you have to stump up a (refundable) deposit (maybe £55) and delivery (£12 – but if youre getting CO2 anyway..)

A single stage regulator is sufficient and costs about £27 (so same as the disposable one): https://www.amazon.co.uk/Parweld-Oxygen-Gauge-Single-Regulator/dp/B00NQUSTFE/ref=sr_1_1_sspa?dchild=1&keywords=oxygen+regulator&qid=1594221946&sr=8-1-spons&psc=1&smid=A3Q5UZ2VG3Y2M5&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExR1dTTzc0RlBZVzNZJmVuY3J5cHRlZElkPUEwOTMzODI2Mk1GQ0sxM05XMkxXOSZlbmNyeXB0ZWRBZElkPUEwMjY1MTA5MUZQUDNEQjU1VDcyNiZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

The output is a 3/8 bsp thread so a simple JG connector to 3/8 line works nicely. You still need See pic 3482.

Again up to you if you use a flow meter but as the pressure is much higher I think you’d be wise to get one. You can skip that on the disposables (but then you might dump the whole bottle into a brew like Fraser did – so could be false economy). You can buy an Argon flow meter that will screw straight into the 3/8 thread so everything is neat and fixed to the regulator like this, but try and find one that has the right flow range (1-2 litres per minute): https://www.zoro.co.uk/shop/welding-brazing-and-soldering/flowmeters-and-economisers/1242-flowmeter-argon-0-14-lpm/p/ZT1000015X?utm_source=google&utm_campaign=pla%2B%7C%2BWelding%2C%20Brazing%20%26%20Soldering&utm_term=ZT1000015X&utm_medium=pla_css_3&mkwid=-dc&pcrid=314501950711&pkw=&pmt=&prodid=ZT1000015X&slid=&pgrid=%7bgroupid%7d&ptaid=pla-392640320780&gclid=EAIaIQobChMI47z1oLHR6gIViLbtCh08YASkEAQYAiABEgKYGvD_BwE

Plus – works out cheaper over maybe 3-5 years, even if you write off the deposit. Tank stands up

Negatives – takes up more room, higher initial outlay.

For both, the oxygen isn’t claimed as food grade, but it often comes from exact the same tank as medical oxygen, it just isn’t tested. Some say its worth fitting an inline filter just to catch any oil or particles etc.

I dip the sintered stone in some hot citric acid after each use to ensure it doesn’t clog up with chalk from the water (that did happen initial) and then sanitise the outside of that and the tubing with Starsan. The pure oxygen should kill anything on the inside.

Final point is that its easier with a conical to use flexible beer line and feed it in through the centre port on the lid, but you can use a metal wand for buckets or small plastic vessels etc.

I think I will try and find a place to site the tank and then run permanent tubing to where I need it, with the flow meter then fixed close to use. Then just plug in the flexible/detachable line/stone when needed.

Cheers

Dan
2
Beer Swap Reviews / Re: Dan's Session IPA V3 Review
« Last post by DanWalters on May 28, 2020, 10:56:21 PM »
Thanks Ben, glad you enjoyed the beer.

With this version I am now happy with the grist and the water profile and so want to play around with some different hops now for the next iteration. I used Mangrove Jacks California Lager yeast for this one as I heard it helps to make the hops pop, not sure I noticed much difference from it to be honest.

The biggest plus point on v3 is the sulphate:chloride water ratio, makes a massive difference to the mouthfeel.

It's a great beer to have on tap because, like you say, at 3.8% it isn't going to do much harm.

Keep an eye out for v4 coming to a delivery driver soon  ;D

Cheers

Dan
3
Beer Swap Reviews / Dan's Session IPA V3 Review
« Last post by Ben2083 on May 28, 2020, 08:05:50 PM »

Well it’s been a long time since I’ve posted a review, a long time since I’ve use the forum at all to be honest with the modern world of Facebook and Twitter. But this is where my association with WHBC began, how I discovered the club and interacted with with you lot in the beginning so in these strange time of zoom pub clubs and Teams ‘coffee and catchup’ meetings I thought I’d go old school.

In fact I was in one such Teams work meeting just after lunch today when a heroic delivery driver (insert rainbow here) turned up with a parcel, odd, I wasn’t expecting anything today. The ‘banter’ in the address label suggested it wasn’t a online order and a cursory shake of the mystery box suggested bottles, filled with a liquid......it couldn’t be could it....... Surprise beer??

The package was opened quickly and to my utter delight I found within, three bottles of Homebrew from WHBC legend and good friend Dan Walters. A surprise Covid Care package! Honestly, I was made up! Beers were quickly stowed in the appropriate places, IPA’s in the fridge and the Milk Stout in the cupboard. The work progressed painfully and at 4:30pm I closed the laptop lid and went for a blast on the pushbike. Exercise done, I needed to re-hydrate. Dans words of “They’re bottled off the keg and the IPAs will be best fresh mate” were ringing in my head so I reached for the ‘It’s Yer Money I’m After V3.0” Session IPA and sat in the sun.

Upon opening there were a satisfying hiss (all fears about  bottling off the keg banished for another day), and the beer poured a wonderful golden straw, with a big white fluffy head. So far so good.

The label promised “a beer that quenches your thirst as your first beer after a tough days work” and also an “adjusted ratio of Sulphate:Chloride in our brewing liquor of 2:3”………now Dan knows I am a sucker for a 2:3 ratio, so now I was really salivating.

A big sniff and I was getting aromas of fresh white bread crusts from the malt and bags of peach and stone fruit from the American hops. I cannot wait any longer, in for the taste. Bam…..there’s those American hops again, more grapefruity on the taste but still a little stone fruit in the background. And the malt is still contributing too, again a white bready flavour, but with a bit of sweetness too. Not a caramel sweetness, but more like the bready taste is edging in to brioche territory. Brioche for a burger bun, a big no no for me, but brioche malt flavour in my Session IPA, oh yeeees!!

The heads still there by the way, thinned to a cap but still there and lacing.

A couple of sips in and as I was getting used to the beer I did detect a very slight pear drop type flavour. Could it be esters from the yeast? Could it just be the way I was interpreting the big hop hit? Or could it be something technical about the process? Who knows, and does it matter, I had to really focus to detect it and it didn’t detract from the beer one bit.

The rest of the beer was enjoyed very much, and quite swiftly. I did need to re-hydrate after all. And at 3.8% why not crush it quickly and reach for another…….except he only sent me one ☹

By the bottom of the glass that pear drop flavour had gone, had I made it up, had I tuned it out, was it just in keeping with the beer and the style? I don’t know the answer to that but one thing I do know is this is one great quaffable session IPA and I cannot wait to try V4.0.
 
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4
Introduce yourself / Re: Greetings from The Isolate Inn
« Last post by DanWalters on May 28, 2020, 04:57:57 PM »
Hi Nige,

Welcome to the forum and you will be pleased to know there are fair few GF brewers in the club.

In the short term if you use Facebook then we have a couple of messenger groups going for the club and I am happy to add you to those so you can get to know a few of us, just drop me a message at dan@worcestershirehomebrewclub.co.uk. We hold a zoom meet every couple of weeks to keep things going with the club as well and you are welcome to join those.

Cheers

Dan


Sent from my iPad using Tapatalk
5
Introduce yourself / Greetings from The Isolate Inn
« Last post by HitachiDriver on May 12, 2020, 04:58:01 PM »
Hi guys,

New member here, 2 years experience with a GF30, look forward to meeting up and sharing ideas as and when things return to some form of normality.

Regards.....Nige
6
Introduce yourself / Re: Hello from Sunny Evesham!
« Last post by DanWalters on April 21, 2020, 08:47:04 AM »
Hi Dan,

Thanks for the reply, I didn’t quite see it before your catch up on Thursday but would love to join the next one!

I am following the FB page too 👍

Cheers Kev

Hi Kev,

We have a couple of Facebook messenger groups that we use for notifications about the meets etc and some day to day brewing chat, I can add you to those groups as well. Do me favour just drop me a message via our page here https://www.facebook.com/worcshomebrewclub/ and then I can make sure I am adding the right person.

Cheers

Dan
7
Introduce yourself / Re: Hello from Sunny Evesham!
« Last post by Kev Andrews on April 19, 2020, 07:58:34 PM »
Hi Stuart,

Yes, I recognise your name from the GF users group on FB!

This is my first venture into brewing and love the GF and what it can do. A bit of me thinks in hindsight I could have saved a bit of money with the brewzilla or Klarstein or any of the other slightly more budget friendly options but there we go! I brew in the garage which is too far away for the bluetooth connection so I end up either staying out and pottering around the "brewery" or setting manual alarms on my phone either way!

I went in for the GF conical fermenter which is temp controlled so i'm very happy with that. The water round here is also very hard (according to my very cheap TDS meter) so I use an RO filter and add minerals myself.

Really want some other people to try my beer and see how i'm getting on.

Cheers!
Kev
8
Introduce yourself / Re: Hello from Sunny Evesham!
« Last post by Stuart Horsfall on April 18, 2020, 11:41:58 AM »
Hi Kev welcome to the club, I too use a GF, love the thing, I ferment in the Mangrove Jacks SS FV in a temp controlled fridge. How do you find the GF.
Cheers
Stuart.
9
Introduce yourself / Re: Hello from Sunny Evesham!
« Last post by Kev Andrews on April 18, 2020, 08:58:47 AM »
Hi Dan,

Thanks for the reply, I didn’t quite see it before your catch up on Thursday but would love to join the next one!

I am following the FB page too 👍

Cheers Kev
10
Introduce yourself / Re: Hello from Sunny Evesham!
« Last post by DanWalters on April 14, 2020, 08:50:09 PM »
Hi Kev,

Welcome to the forum, always glad to grab new members especially in these unusual times.

We have quite a few Grainfather brewers in the group...the buggers are taking over  ;D

Not sure if you use Facebook at all but if you do then if you like our page on there then I shall add you to our notifications group which we use for ad hoc messages, details about our club nights (currently virtual via Zoom) and just a bit of general chat https://www.facebook.com/worcshomebrewclub/

We have a virtual meet this Thursday night if you want to come and meet a few of us, we love new members and will make you very welcome.

Cheers

Dan
Pages: [1] 2 3 ... 10

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