• Please visit and share your knowledge at our sister communities:
  • If you have not, please join our official Australia and New Zealand Homebrewers Facebook Group!

    Australia and New Zealand Homebrewers Facebook Group

Get into O2 guys, if you're serious about nicer beer

Australia & New Zealand Homebrewing Forum

Help Support Australia & New Zealand Homebrewing Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
As I don't have an O2 setup, which is clearly the best option, and are limited to stirring, I've found that storing vigorously twice provides really good results even on the higher OG beers. So I'd stir on pitching then again 1-3 hrs later. The idea is to compensate somewhat for the lower dissolved O2 stirring will achieve by doing it a second time an hour or so afterwards, hopefully once the yeast has "woken up" and possibly used a lot of the oxygen from the first stir. A bit similar to some of the English techniques, I hoped.
Admittedly this is normally on yeast cakes, so hard to know how much is from the stirring technique and how much is from the high pitch rate.
 
I don't get what you mean your references to heat - they simply aren't making sense.

I read that as meaning that the power drill he was using didn't get hot to touch.

While I agree that sucking in the surrounding air could inject foreign bacteria, I used a stick blender for years before investing in an O2 kit and never once had an issue.
 
You have been saying that you are having trouble with flavour and stability of your beer.
Need to clarify, when are you aerating? Should be aerating wort at pitching temperature, just before adding yeast.
What do you mean about getting it hot? What and when.
Personally I wouldn't use a paint stirrer, you will never get enough aeration to be effective and if you are forming a vortex you will also be sucking in lots of bacteria with the air, big chance of infection.

O2 is more soluble in cold than in hot wort, I don't get what you mean your references to heat - they simply aren't making sense. Getting too much O2 into hot wort will do harm to flavour and stability.
Be a good idea to lay out exactly your steps.
If you aren't going to use pure O2, I would stick to dry yeast - for various reasons dry yeast is less dependant on dissolved O2 than liquid cultures.
Mark

Hey Mark! Sorry, I should have explained a bit better. As another poster has since put it - I meant the drill or drill bit. Reason I mention that is because people earlier were saying their stuff would get too hot to touch. Though it all means little.

To clarify, I've never really aerated before (gasps) most I've ever done was a few 'swoops' with the paddle spoon while trying not to spill wort over the edge of fermenter, so this is a new step for me in my new quest to make a superior quality product.

I waited until the wort was at pitching temp before aerating. Have learned recently about even low disolved oxygen in mash (which was completely new to me! So have also boiled the strike water to expel o2 this batch. As you'll see in the photo, plenty seemed to come out before the boil. It just cycled around without breaking the surface before boiling out) so I'm aware of never splashing at temperature as it causes oxidation also.

I bought the paint stirrer first to see how it goes before shelling out for a gas setup. A few people here have said that they have o2 but haven't used it in a while because the stirrer is just as good taste-wise so I want to see what difference I note (if any?) Before going any further

Cheers
 

Attachments

  • 20171226_072700.jpg
    20171226_072700.jpg
    1.4 MB
Wondering if anyone knows if you can buy Berzomatic o2 cylinders still
I have searched Bunnings but no go might have to ring them tomorrow to comfirm
Kook has one up fot sale so just wanted to make sure you can still purchase them
cheers Rude
 
Another option for people looking to start with o2 - keg King now stock a full setup. I purchased a bottle, regulator, and stone/wand kit for $120 all up. I don't think I saw the bottles on their website, but they had it all in store. No deposit for the bottle so less of an upfront cost.

The reg just has psi, no flow meter, so I'm still getting used to how to use it but I'm pretty happy with the purchase.
 

Attachments

  • 1515203154142630473823.jpg
    1515203154142630473823.jpg
    1.4 MB
  • 1515203186883213922364.jpg
    1515203186883213922364.jpg
    1.4 MB
Cheers RB looks a good option but no keg king in the west
not sure if they post but if they do will check them out
 
Back
Top