Oxygenating Wort

[GuingesRock]

Investigating oxygenating wort. I thought I'd like to go with O2. This is as far as I got (email from the local medical supplies place - Family First Medical) apparently they supply Paddys.

Any better ideas?

Do you get your O2 from them Jeff? It's probably more worth it for a larger operation.

Sandy, Have you seen any O2 regulators on kijiji?

Cost for renting and filling either a 6 lb or 8.6 lb tank are the same.

Monthly cost for a tank: $9.95 per month, inclusive of taxes

Yearly cost for a tank: $89.95 per month, inclusive of taxes

Filling the tank will cost $25.00 each time

AND you have to purchase a regulator to get the gas out of the tank. Purchase of a regulator is $159.00 (inclusive of taxes)

We do not fill tanks in house but send them out to be filled so we do not usually deal with private owned cylinders.

If we can provide any further information please feel free to contact us at your earlliest convenience,

[AllanMar]

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[GuingesRock]

Good thanks! I searched Oxygen on here before posting but didn't think of searching O2

....read those threads. Lots of good info but still stuck. I'll do some more work on it.

[GAM]

Nope. I think I'd go with the air pump ane filter. Cost and availablity. Dave has the gear you would need.

Sandy

[GuingesRock]

Nope. I think I'd go with the air pump ane filter. Cost and availablity. Dave has the gear you would need.

Sandy

That's the other option. I'm going too and fro on that. Nash's post here is interesting with regard to that.

Thanks

[AllanMar]

Good thanks! I searched Oxygen on here before posting but didn't think of searching O2

....read those threads. Lots of good info but still stuck. I'll do some more work on it.

Buy a regulator from eBay, a medical tank from the site they did the group buy from and get it filled from TR's?

Either that or look at leasing a welding tank from Praxair/air-liquide/etc (should be cheaper then the medical places).

The cheap/simple ways are either an air pump or a disposable o2 tank setup (both with some limitations).

This is pretty much what I use, although I just got the regulator from morebeer and made a wand myself (with .5 micron stone).
http://www.williamsbrewing.com/WILLIAMS ... 9C106.aspx" onclick="window.open(this.href);return false;

[GuingesRock]

That's all good stuff Allan. I'd like to have a wand like the one in the link installed into the pot, so the boil sanitises it, with the O2 hook up on the outside, but need to figure out a way. How did you attach the stone to the SS tubing?

How many batches do you get from a disposable tank roughly?

Thanks

[AllanMar]

I took some 1/4" SS tubing and had it flared and added a swivel nut (i'll post a pic if i get a chance). Connects to a MFL oxygen stone. Like this one: http://morebeer.com/products/diffusion- ... reads.html" onclick="window.open(this.href);return false;

I boil the stone in water before each use as it's easy to get clogged. I'm not sure if boiling it in wort would help unclog, or clog it.

If I were going to put it in the lid (I'd recommend just using a wand), I'd probably mount a 1/4" compression fitting (bored thru) in the lid and then use 1/4" tubing to the stone. You can buy wands with stones attached, which may be better for you:
http://www.williamsbrewing.com/22-AERAT ... -P490.aspx" onclick="window.open(this.href);return false; (for example)

I really don't know on the tank... Ive been meaning to keep track (going to start a tally on the tank when i start a new tank), i'd guess 10-15? They're around ~$10 each. I run it for 1min per 5gal batch, but flow is very hard to get consistent with these.

With liquid yeast (starter), and o2 I usually get a strong start within 12hrs.

[GuingesRock]

Thanks Allan. That's very useful.

[GuingesRock]

Ps. I wouldn't put it in the lid, I'd install it in the wall of the pot, (I don’t have the lid partially on during the boil, and the objective was to sanitize it during the boil)), but since it will only be in for a minute or two it'd probably not be worth installing it, and might be more trouble than it's worth if it gets clogged up etc. I like the wands you linked (pictured below), although as you say, it should have a filter in the PVC line, because the O2 in those canisters isn’t necessarily sanitary. I might try to get one of those. The boiling idea each time sounds like a plan for the tip of it. I wonder if the inside of the tubing higher up needs sanitising. Presumably you are using starsan for the outside of the tube. Maybe just boiling the bottom end is adequate to deal with the inside? I thought about heating the wand in the oven to sanitize (minus the PVC tube) bit that would probably cook stuff into the pores in the stone forever.

I like the idea of the canisters because they are easily accessible, no up front cost/rental for tank etc. and you can always keep a spare one in case one runs empty at a crucial moment.

I haven't come across any concerns about using non medical grade O2 in my reading, in fact the opposite is often stated, but I'd like to use a filter. Does anyone know of any concerns?

I don't think they ship to Canada sent them an email to see.

[mr x]

Speaking for the guys who bought the medical tanks, I think they were money very well spent. I was going through those 40g bottles way too fast.

[RubberToe]

Speaking for the guys who bought the medical tanks, I think they were money very well spent. I was going through those 40g bottle way too fast.

And I totally agree. I think I'm into mine for under $140 total including my first fill which will last God knows how long. I think it's been about 1.5 years now. I wonder how many disposable tanks I would have used in that time.

I knew I'd be making beer for a long time so for me it was worth the investment.

[AllanMar]

I haven't come across any concerns about using non medical grade O2 in my reading, in fact the opposite is often stated, but I'd like to use a filter. Does anyone know of any concerns?

I use a cheap filter, dont know how critical it is, but I figured why not.
https://www.everwoodavebrewshop.com/pro ... ir-filter/" onclick="window.open(this.href);return false;

Speaking for the guys who bought the medical tanks, I think they were money very well spent. I was going through those 40g bottle way too fast.

And I totally agree. I think I'm into mine for under $140 total including my first fill which will last God knows how long. I think it's been about 1.5 years now. I wonder how many disposable tanks I would have used in that time.

I knew I'd be making beer for a long time so for me it was worth the investment.

I'd agree, I got this because I was doing a morebeer order and it seemed like a cheap/easy way to get started. I'd still like to eventually get a medical bottle, with a decent flow control reg and probably switch over to in-line.

[GuingesRock]

You city people have many more options. Having said that, there's an excellent welding supply shop up here. I get my liquid nitrogen from there for the clinic, so that's my next stop, especially after your comments.

Allan, you mentioned you had some SS tubing flared in order to attach it to that stone. Would a dip tube from a Pepsi keg be flared at the post end suitably? ...probably not. I wonder if there is a way to attach a dip tube to the stone.

[GuingesRock]

I'm going to make an inline oxygenator and have ordered a 1/2" Tee and a stone from Dave.

I’m getting a tank of oxygen from the welding shop, they also supply “food grade” and “medical grade” O2, but the guys that take the tanks in to be filled, say they all get filled from the same tank. The guy at medical supply shop said the same thing …so I’m getting the welding grade and using a filter.

[AllanMar]

What size/cost? If you don't mind me asking.

[GuingesRock]

I have the figures at work. Will edit this post tomorrow. It's my cheapest and most practical option around here (non HRM). I was going to lease a tank and they take care of it and exchange for a full one when empty plus a filling charge of something like $25. I think the lease was something like $6.75 per month. I bought the regulator from them and it was $98. Choice of tank sizes but quite big and not much difference in the cost if you had a bigger tank.

The welding shop is Nova Industrial Supplies Ltd. They have branches all over.

[NASH]

I'm going to make an inline oxygenator and have ordered a 1/2" Tee and a stone from Dave.

I’m getting a tank of oxygen from the welding shop, they also supply “food grade” and “medical grade” O2, but the guys that take the tanks in to be filled, say they all get filled from the same tank. The guy at medical supply shop said the same thing …so I’m getting the welding grade and using a filter.

The Medical Grade tanks are cleaned before each refill, or tested for contaminants, or both, or something

I don't remember exactly what they told me but it was something to one of those effects. Enough to warrant me dismissing the thought of ever paying the extra for medical grade O2 again.

[RubberToe]

I have a spare (used) regulator just like that that I could sell relatively cheap BTW.

[AllanMar]

I have the figures at work. Will edit this post tomorrow. It's my cheapest and most practical option around here (non HRM). I was going to lease a tank and they take care of it and exchange for a full one when empty plus a filling charge of something like $25. I think the lease was something like $6.75 per month. I bought the regulator from them and it was $98. Choice of tank sizes but quite big and not much difference in the cost if you had a bigger tank.

The welding shop is Nova Industrial Supplies Ltd. They have branches all over.

Not bad, I'd like to get something with a flowmeter/control tho.

[RubberToe]

I have a spare (used) regulator just like that that I could sell relatively cheap BTW.

Scratch that, mine is high pressure on the tank side, and flow control (l/min).

[GuingesRock]

I have a spare (used) regulator just like that that I could sell relatively cheap BTW.

Scratch that, mine is high pressure on the tank side, and flow control (l/min).

What's the advantage over controlling the PSI. Not too late to take mine back. If it's a big prob, can I buy your one please Rob.␀

[Jimmy]

What's the advantage over controlling the PSI. Not too late to take mine back. If it's a big prob, can I have first dibs on your one please Rob.␀

I think so you can calculate the amount of oxygen/minute

[GuingesRock]

Thanks, that sounds like quite an advantage.

[Jimmy]

I don't know that for sure, just assuming.

I'd think you'd want a certain flow rate for a certain amount of time..though from the quick reading I've done, I've read it's hard to over oxygenate. So the only real advantage may be less wasted oxygen?