You have to have the right ingredients. Your boil needs to be at the right temperature and your hop additions done at the right time.
You also need your wort to be properly oxygenated.
The yeast loves oxygen during fermentation. So, if you want your yeast to have the best chances of doing a great job, efficiently and effectively, then using an oxygen kit with an aeration wand is a great way to get some air in your beer!
This is especially true if your beer is going to be a high-gravity beer - these brews will usually have a lower oxygen concentration in the wort when compared to standard beers. Adding extra oxygen will improve the effectiveness of the yeast.
This then begs the question:
What is the best kit to make wort oxygen rich?
Improve the flavor of your homebrew with less effort and impress your friends and family with better results with the Northern Brewer aeration kit. Its use will reduce the 'lag phase' of fermentation and off-flavor-producing fermentation by-products.
It will take less than a minute to infuse the wort with the wand. The kit comes with a valve to attach to an oxygen tank, tubing, aeration want, 0.5 micron air stone, herbie clamp to secure the tubing to the wand.
To be clear, this kit does not come with an oxygen tank, you'll need to source your own.
Here's some reviews and comments from actual user's of Nothern Brewer's kit:
"I sterilized the wand and tubing, put it in my carboy, turned it on and it bubbled up from bottom to the top. I pitched my yeast around 5pm. By 8pm I saw a couple bubbles, by the next morning, it was bubbling like crazy!! I am very glad that I used a blow off tube on my primary!"
"Great starting oxygenation kit! if you're like me and you don't like shaking your carboy for upwards of 20 minutes then you need something like this"
"Used it to oxygenated a chocolate cherry porter and following the instructions for creating more of a "simmer" than a "rolling boil" for 40 seconds I have a healthy fermentation going in under 12 hours.
How long do you oxygenate wort for?
Regardless if you are using a kit or a stone, the total amount of time needed to oxygenate wort can be pretty short - from 30 seconds to a minute for a 20 litre batch. Double the time if you are doing double the volume.
If you making a higher ABV beer, then you may wish to give it a bit longer. In reality, a standard brew will benefit from a saturation level of 8 - 10pp and a higher ABV brew will benefit from a level closer to 12pp (though as usual with brewers, there's some debate that 15pp is the goal).
Before you add the wand to the wort, make sure it is properly sanitized.
Can I make my own oxygenation kit?
You sure can, it's a pretty simple process to make your own. You only need a few parts:
- A diffusion stone (actually a stainless steel one at 0.5-micron)
- 1/4 quarter inch tubing
- An oxygen regulator
- Source of oxygen
Pretty easy set up eh?
Final worn on aeration:
While it is very important to ensure your wort is aerated before you pitch your yeast to start fermentation, you do not want to add oxygen post-fermentation completion. This means you should take particular care when moving your fermentation drum and especially when bottling or kegging your beer.
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