Pumped wort aerator

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Pumped wort aerator

Unread postby mashy » Sat Dec 16, 2017 8:12 am

I like the idea of in-kettle aeration.

Building on the idea of the pump adaptor.

This one..

viewtopic.php?f=4&t=2670

Could we pump over, using a spray head, with a venturi?
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Re: Pumped wort aerator

Unread postby gandalf the brew » Sat Dec 16, 2017 2:13 pm

I use one of these as the wort goes into the fermenter
SIPHON-SPRAY.jpg
SIPHON-SPRAY.jpg (10.89 KiB) Viewed 1145 times

But I never thought about adding a venturi in the line to draw in air as it passed through the pipe
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Re: Pumped wort aerator

Unread postby gandalf the brew » Sat Dec 16, 2017 6:32 pm

Been giving some thought about a venturi
1.jpg
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Take two 15x10mm reducers and smooth them out inside.
Solder both 10mm ends together to form a throat, then drill a 8mm hole on the solder line.
Inset a piece of 8mm pipe so it's just short of flush inside and solder around it.
You now have a venturi that when wort flows through will suck in air via the 8mm pipe.
Something like this
2.jpg
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Re: Pumped wort aerator

Unread postby mashy » Sun Dec 17, 2017 7:32 am

Yeah that would work. Microbore T might work.

Where did you get the spray head?

I might knock one of these up over the weekend.
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Re: Pumped wort aerator

Unread postby gandalf the brew » Sun Dec 17, 2017 8:37 am

mashy wrote:Yeah that would work. Microbore T might work.

Where did you get the spray head?


https://www.hopandgrape.co.uk/syphon-spray-wort-aerator.html
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Re: Pumped wort aerator

Unread postby mashy » Sun Dec 17, 2017 2:34 pm

Does it have an internal thread?
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Re: Pumped wort aerator

Unread postby gandalf the brew » Sun Dec 17, 2017 4:50 pm

mashy wrote:Does it have an internal thread?


No, smooth bore, sprays out in a pattern like this.https://www.nybrewsupply.com/products/siphon-spray-wort-aerator-and-sparger?variant=48310920020
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Re: Pumped wort aerator

Unread postby grooves » Sun Dec 17, 2017 6:49 pm

I've mentioned it before - I use a wine aerator. It works a treat -

Image
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Re: Pumped wort aerator

Unread postby mashy » Mon Dec 18, 2017 8:12 am

Might be my browser - but I can't quite see that. Seems really zoomed in.
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Re: Pumped wort aerator

Unread postby gandalf the brew » Mon Dec 18, 2017 9:50 am

mashy wrote:Might be my browser - but I can't quite see that. Seems really zoomed in.


+1
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Re: Pumped wort aerator

Unread postby grooves » Mon Dec 18, 2017 12:30 pm

Ha - yes - I copied the image image from google images, but it links to a massive picture!

Image

This is one I just happened to have - and luckily it fits on the end of 1/2" hose
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Re: Pumped wort aerator

Unread postby gandalf the brew » Mon Dec 18, 2017 2:36 pm

Now I see, a wine decanter / aerator, I've heard about them on another brew forum.
Are they any good when wort is pumped through ?
Last edited by gandalf the brew on Mon Dec 18, 2017 4:43 pm, edited 1 time in total.
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Re: Pumped wort aerator

Unread postby mashy » Mon Dec 18, 2017 2:57 pm

Do you do anything else to aerate before pitching?
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Re: Pumped wort aerator

Unread postby grooves » Mon Dec 18, 2017 3:57 pm

I either pump through a plate chiller and then the aerator, or just just let it run under gravity. Nothing else. Both work great - by the time the FV is filled there's probably 3 inches of foam on top, so it's well aerated, I couldn't get to that level with my old mixer or shaking.
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Re: Pumped wort aerator

Unread postby mashy » Mon Dec 18, 2017 4:16 pm

I quite fancies these.

http://www.ebay.co.uk/itm/1-4-1-2-Stain ... 2WZM96tLew

Using the BM pump, which is not high pressure I was hoping they break up the wort flow, but not atomize it.

Thoughts?
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