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Post by SponsorSFC on Jan 18, 2019 15:08:56 GMT 10
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Nitro
Jan 18, 2019 15:24:53 GMT 10, Post #44886
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Post by davidm on Jan 18, 2019 15:24:53 GMT 10
Interesting. Might go ok with a mini keg, which is how I picture running nitro in my system if I ever do it. I.e. only dedicate some beer to it at any one ime so I can mix it up a bit.
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Joined: Jan 3, 2018 22:14:59 GMT 10
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Nitro
Jan 18, 2019 15:36:36 GMT 10, Post #44887
Post by Lord Raja Goomba I on Jan 18, 2019 15:36:36 GMT 10
I got the email, and I will say the price is reasonable. But if that nitro only does a couple of kegs, that rules me out. Unless they get a 2.6kg or 6kg bottle?
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Nitro
Jan 18, 2019 16:32:50 GMT 10, Post #44896
Post by madpierre06 on Jan 18, 2019 16:32:50 GMT 10
If that could be fitted to a mini keg might be worthwhile aswouldn't add a great deal of expense to 4L of nitro'd coffee stout.
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Joined: Dec 28, 2017 10:39:33 GMT 10
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Post by davidm on Jan 18, 2019 17:12:18 GMT 10
If that could be fitted to a mini keg might be worthwhile aswouldn't add a great deal of expense to 4L of nitro'd coffee stout.
or just nitro cold brew coffee that you've roasted yourself....
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Nitro
Jan 18, 2019 17:19:09 GMT 10, Post #44899
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Post by madpierre06 on Jan 18, 2019 17:19:09 GMT 10
If that could be fitted to a mini keg might be worthwhile aswouldn't add a great deal of expense to 4L of nitro'd coffee stout.
or just nitro cold brew coffee that you've roasted yourself....
That fits in mini kegs too, ehh.
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grmblz
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Nitro
Jan 19, 2019 9:02:28 GMT 10, Post #44942
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Post by grmblz on Jan 19, 2019 9:02:28 GMT 10
Hi David, I've been mucking about with Nos and N2 for a little while now, coffee and stout. Take a quick look at this www.google.com/search?client=firefox-b&q=guinness+gas+mix then download their manual and look at page 40 (there's heaps of interesting stuff in it but p40 is what you need I think) It's not as simple as the average brewer (used to co2) thinks, and it certainly explains some of my earlier results. Hope this helps. cheers G
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Nitro
Jan 19, 2019 12:25:54 GMT 10, Post #44948
Post by davidm on Jan 19, 2019 12:25:54 GMT 10
Hi David, I've been mucking about with Nos and N2 for a little while now, coffee and stout. Take a quick look at this www.google.com/search?client=firefox-b&q=guinness+gas+mix then download their manual and look at page 40 (there's heaps of interesting stuff in it but p40 is what you need I think) It's not as simple as the average brewer (used to co2) thinks, and it certainly explains some of my earlier results. Hope this helps. cheers G Not seeing anything with a page 40 come up in that search, got a direct link to it?
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grmblz
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Post by grmblz on Jan 19, 2019 13:36:23 GMT 10
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Nitro
Jan 19, 2019 14:11:50 GMT 10, Post #44954
Post by Lord Raja Goomba I on Jan 19, 2019 14:11:50 GMT 10
grmblz I remember your avatar from the other joint but trying to put a name to it.
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Nitro
Feb 26, 2019 18:46:38 GMT 10, Post #47664
Post by davidm on Feb 26, 2019 18:46:38 GMT 10
just been talking to Supagas, they can do a 6kg D cylinder of stout mix for $7/month rental and $30 refills. Looking at combining a few bottles together to save on rental, so this could be a good option.
Still need a tap though.
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Nitro
Feb 26, 2019 19:28:13 GMT 10, Post #47669
Post by djl3thal on Feb 26, 2019 19:28:13 GMT 10
I'm not great with the different mixtures and why, but looked up what was available and looking at the various mixtures I'd say the basic reason for there being options is because pubs/clubs typically run a fixed pressure in the system due to the length of the lines etc. So to balance the carbonation for each kind of beer they just change the mixture of N2/CO2 for the desired level of carbonation. It's different for us homebrewers because we vary the pressure for the level of carbonation, so therefore do not need Nitrogen. I think the Nitrogen does provide a slightly creamier mouthfeel because there are effects on the beer head and there is also a reduced level of CO2/carbonic acid in the beer. Here is a concise page showing the different types out there www.boc.com.au/shop/en/au/gases/hospitality--food---beverage-gas-mixturesAlso just to comment on the above re:gas mixing. Typically gas mixing is all about fixed and continuous pressures supplied into the mixer. The larger component of the mix is called the carrier gas and is typically 100kPa higher than the secondary gas (but some mixers allow up to 200kPa variation). The gases go through what are called blenders/blades and out through an outlet pressure regulator which holds the mixed condition into whatever the downstream system is. Mixers are designed based on a range of set parameters, inlet versus outlet pressure (defines the flow) and they are rated for a flow range. They are quite expensive as alluded to above. Most gas mixtures don't like to stay together and will actually stratify/separate over time too.
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Nitro
Feb 27, 2019 11:53:56 GMT 10, Post #47720
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Post by davidm on Feb 27, 2019 11:53:56 GMT 10
Looking at taps, have seen only the one option in Aus for all stainless: LinkyAlso found a few on aliexpress, this seems to be the cheapeast at 49 USD: Linky
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Nitro
Feb 27, 2019 19:18:09 GMT 10, Post #47755
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Post by Jack-of-all-biers on Feb 27, 2019 19:18:09 GMT 10
There is this one for almost half that price, but it is new and out of stock. Guess from who...
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Nitro
Mar 14, 2019 13:59:26 GMT 10, Post #48517
Post by SponsorSFC on Mar 14, 2019 13:59:26 GMT 10
I am contemplating pulling the trigger on this as I have an ebay 10% off code making it $288 delivered. www.ebay.com.au/itm/Nitrogen-D-Size-Gas-Pressure-Test-Welding-Nitro-Cold-Brew-No-Rental-Fee/122171691686 Was looking at the C size cylinder but refills are only $4 more at $59 for the D size which holds significantly more (from what I can see enough to dispense about 150L where the C size is about 50L and the KL bottles about 40L). Will likely use the ACB grenade kegs for nitro cold brew and run a stout tap in the kegerator (I already have an Intertap stout spout and a spare tap). Will need a type 50 reg but they don't seem that expensive. KL sell the same MK4 reg with the type 50 connection for about $50. The plan for beer will be to carb up as normal to an appropriate carb level on the CO2 cylinder then switch to the N2 for dispensing. I assume I will need to add some more CO2 as the keg is depleted. Am I missing anything before I commit?
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Post by davidm on Mar 14, 2019 15:12:52 GMT 10
Will need a type 50 reg but they don't seem that expensive. KL sell the same MK4 reg with the type 50 connection for about $50. The plan for beer will be to carb up as normal to an appropriate carb level on the CO2 cylinder then switch to the N2 for dispensing. I assume I will need to add some more CO2 as the keg is depleted. Am I missing anything before I commit? I plan to use the 6 litres as well, and just pick and choose what I want to put on nitro without comitting a whole keg to it. I think you're on the right track, just need to top up the co2 as you go. Could be a bit of a pain, but once you get the knack of it it'll probably be fine.
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eljefe
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Post by eljefe on Mar 14, 2019 15:30:46 GMT 10
Looks the goods to me!
I've recently set up a couple of nitro taps, myself. I went with the KL disposable option. It works really well for me, and I'm still on the first tank. If I wanted to run stout all the time, I would be looking at a beer gas setup. As I only imbibe stouts/porters occasionally, it's very easy to balance the Nitro and co2. Just don't leave the nitro hooked up, or it will push the co2 out of the beer.
As I am a coffee fan, I needed the 100% N2 option. It works great. I currently have a cold dripped espresso martini in a 2L keg which sits nicely on top of my glycol font pump reservoir, allowing me to lager a corny in the meantime.
That was also why I went the disposable route. The little tank and regulator nestle nicely in the back of my keezer without interfering with the cornies and co2 tank.The N2 has thus far gone a surprisingly long way, but as I said, if I wanted to drink stout all day, I would want a bigger tank of beergas.
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Nitro
Mar 14, 2019 15:56:46 GMT 10, Post #48521
Post by SponsorSFC on Mar 14, 2019 15:56:46 GMT 10
Thanks guys. I can see us drinking more coffee (daily) in volume over a year than stout and finding someone willing to do 70/30 here without being a rental has been surprisingly difficult. So pure N2 seems the go. I was going to go down the disposable route but the ease of a local refill for not much more than a disposable bottle delivered has swayed me to getting the big cylinder. eljefe how do you balance your CO2/N2?
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eljefe
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Post by eljefe on Mar 14, 2019 16:18:41 GMT 10
I just hook up the N2 to dispense.
I only have a stout or two at a time, and then when I'm finished I unhook the N2.
When I left N2 connected (~30 psi), it eventually pushed out the co2 and whilst it still poured with a creamy nitro head, the body was flat. It was a strange sensation. To fix it, I just purged and gave it a blast of (~32 psi, my force carbonating pressure) co2 and came back a few days later. It rebalanced itself nicely. As I don't use my serving (~11 psi) tank to pour it, I just make a swap of tanks when needed.
It was carbonated normally, initially.
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Nitro
Mar 14, 2019 16:25:36 GMT 10, Post #48524
Post by SponsorSFC on Mar 14, 2019 16:25:36 GMT 10
Great, thanks.
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eljefe
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Post by eljefe on Mar 14, 2019 16:40:27 GMT 10
No probs at all.  I tried the same beer on co2, then co2 with a stout tap and then nitro through a stout tap. The difference was unbelievable. The whole flavour profile softens and brightens. You won't regret making the effort to nitrogenate, not even mentioning the coffee side of it. Enjoy, mate.
Let us know how you go.
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Post by SponsorSFC on Mar 14, 2019 17:44:20 GMT 10
No turning back now.
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Nitro
Mar 14, 2019 18:07:02 GMT 10, Post #48534
Post by davidm on Mar 14, 2019 18:07:02 GMT 10
sorry if i missed it, but what taps are you guys using?
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Nitro
Mar 14, 2019 18:12:20 GMT 10, Post #48535
Post by SponsorSFC on Mar 14, 2019 18:12:20 GMT 10
I have Intertaps and a stout spout already so going to use that to start with.
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eljefe
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Nitro
Mar 14, 2019 18:33:54 GMT 10, Post #48539
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Post by eljefe on Mar 14, 2019 18:33:54 GMT 10
I have a couple of Guinness taps that I scored locally from a nice guy at the old place. He rescued them from an old pub.
The last time I spoke to him, he still had a couple spare.
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Nitro
Mar 15, 2019 11:18:10 GMT 10, Post #48568
Post by davidm on Mar 15, 2019 11:18:10 GMT 10
I have a couple of Guinness taps that I scored locally from a nice guy at the old place. He rescued them from an old pub. The last time I spoke to him, he still had a couple spare. Got a pic? Would these be available do you think? I might be keen on one depending on what it looks like and how it needs to be mounted.
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eljefe
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Nitro
Mar 15, 2019 13:21:26 GMT 10, Post #48575
Post by eljefe on Mar 15, 2019 13:21:26 GMT 10
I grabbed two of these.
From memory, they were the only two he had that had the quick disconnects I needed. The other ones were similar, but I didn't really take much notice of them. I can see if I can dig up his number if you like.
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Nitro
Mar 15, 2019 14:34:27 GMT 10, Post #48587
via mobile
Post by davidm on Mar 15, 2019 14:34:27 GMT 10
I grabbed two of these.
From memory, they were the only two he had that had the quick disconnects I needed. The other ones were similar, but I didn't really take much notice of them. I can see if I can dig up his number if you like. I'll probably pass. I'm not geared up to use the qd style tap like that. But thanks for the pic.
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Nitro
May 13, 2019 17:31:03 GMT 10, Post #51787
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Post by davidm on May 13, 2019 17:31:03 GMT 10
I ended up with an intertap with the stout spout. Just beware when buying to make sure spout and tap match - more details in this thread. aussiecraftbrewing.com.au/thread/2149/when-intertapAnyway, here's my first nitro pour. Barrel aged, imperial porter, fresh out of the barrel today. I'm using the 70/30 nitro/co2 mix, and this was on uncarbonated beer (only just hooked up today). Pressure set to around 30 psi / 200 kPa, and it came out pretty quick. I can see that being a problem when the co2 starts dissolving in the beer. Will see how I go. Edit: in fact, I've decided to halve that pressure to begin with, and will then see how it pours. Attachments:
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eljefe
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Nitro
May 14, 2019 12:26:19 GMT 10, Post #51829
Post by eljefe on May 14, 2019 12:26:19 GMT 10
That sounds like a fantastic beer!
Interesting that you didn't force carb it with co2 first. Why was that?
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