Venturi Tube Wort Aerator project

[tazuk]

well did a brew yesterday ( Sara Carter's-Bombay IPA one that won first place )

so thought i would have a play with a Venturi Tube Wort Aerator
the only thing with these you have to keep it up right all the time :thumb:
the following pics was also using my 60 plate chiller
here is link to project
http://www.kettlemoraine.com/mikesbeerpage/gadgets.php

see the foam lol

 

[bobsbeer]

A nice head. Good job. :thumb:

 

[swiggingpig]

well did a brew yesterday ( Sara Carter's-Bombay IPA one that won first place )

so thought i would have a play with a Venturi Tube Wort Aerator
the only thing with these you have to keep it up right all the time :thumb:
the following pics was also using my 60 plate chiller
here is link to project
http://www.kettlemoraine.com/mikesbeerpage/gadgets.php

Linky no worky

 

[tazuk]

may be site down :wha:
here how it made

Heres what you do. Take a 6 inch length of tubing ( vinyl, copper, brass, or stainless depending on your fabrication skills ), drill 4-6 small holes, about .020" diameter into the center 1.5" of it. I used a spiral pattern for the holes, believing that it causes more turbulence, but the aerator tube will work fine with holes period. Drill a hole in the top and bottom of the vial to pass the tubing through, make the hole small enough to fit the tubing snugly. Drill some more small holes for air entry into the cap of the vial, I settled with four one-eighth inch holes. Put a cotton ball just under the lid, this is to be an air filter to keep contaminates out of your wort as it draws the air through and into your wort.
No need to spend money on oxygen bottles or cleaning of those difficult airstones anymore! This is the brewers favorite price point here.... free oxygen! Only one very small warning, if you drill the aerator tube holes too large, wort will leak out of the holes and fill the vial over time. You need to pay attention to the vial if you are allowing pressure to build in the carboy (too tight of a fit in the carboy), wort will fill the vial, soak the cotton and quit working. I now am drilling a 1/16 inch pressure relief / drain hole in the bottom of the vial where it is inside the carboy, venting the air under pressure in from the carboy. They work well in usage, especially if you use a rubber band around the tube to raise it in the neck of the carboy, as I have been suggesting, to increase the fill space in the fermenter before the aerator touches the wort.
WARNING: Do not use this item unsupervised, as you will need to be around to shake down the foam as your fermenter fills, or it will overflow with frothy wort.

Ever wonder what to do with those old yeast vials sitting around the brewery? I dont. Turn one into a Wort Aerator. If you noticed, they fit the neck of your carboy very well, and screwing the cap onto it keeps it from falling into the carboy. Remember, this item must be used in a vertical position or it will leak wort from the tube, its a gravity thing.

well did a brew yesterday ( Sara Carter's-Bombay IPA one that won first place )

so thought i would have a play with a Venturi Tube Wort Aerator
the only thing with these you have to keep it up right all the time :thumb:
the following pics was also using my 60 plate chiller
here is link to project
http://www.kettlemoraine.com/mikesbeerpage/gadgets.php

Linky no worky

 

[swiggingpig]

may be site down :wha:
here how it made

Cunning :clap:

I'll have to try this one myself :thumb:

 

[Asalpaws]

That's cool, much like Venturi oxygen masks used to deliver oxygen in exact concentrations to sick people in hospital. Next day off I'm trying that !

 

[prolix]

that is banging!

:thumb:

 

[johnnyboy1965]

Where do I start with this, please dont take offence or dismiss what Im about to say.
The first stage of yeast reproduction id that the yeast consumes all the dissolved O2 in the wort. No matter how hard you whisk, beat, shake airiate your wort, very little O2 is dissolved. By dissolved I mean O2 held in suspension. All you have done there is add "fresh air" about of which 16% is 02. Non of this "froth" is actually in contact with the yeast, therefore, not helping the yeast in any way at all. If you want to dissolve 02 into your wort you are better off going to your local aquatic center and buying a cylinder of 02 and trickling it through your wort via a "airstone"
This will create a wort that is full of 02, this is exactly what yeast needs, but not too much as you want the yeast to go on to the next stage of consuming the sugars

 

[tazuk]

wot did it say in post did you read :wha: :wha:
No need to spend money on oxygen bottles or cleaning of those difficult airstones anymore!

Where do I start with this, please dont take offence or dismiss what Im about to say.
The first stage of yeast reproduction id that the yeast consumes all the dissolved O2 in the wort. No matter how hard you whisk, beat, shake airiate your wort, very little O2 is dissolved. By dissolved I mean O2 held in suspension. All you have done there is add "fresh air" about of which 16% is 02. Non of this "froth" is actually in contact with the yeast, therefore, not helping the yeast in any way at all. If you want to dissolve 02 into your wort you are better off going to your local aquatic center and buying a cylinder of 02 and trickling it through your wort via a "airstone"
This will create a wort that is full of 02, this is exactly what yeast needs, but not too much as you want the yeast to go on to the next stage of consuming the sugars

 

[Swift Pint]

Commercial breweries typically shoot for 8 to 10 ppm dissolved oxygen in wort prior to fermentation. Five ppm dissolved oxygen in wort is considered a bare minimum for proper yeast growth. Eight ppm of oxygen in chilled wort can be achieved using plain old air (which is 21% oxygen).

Taken from THIS



Just out of interest Tazuk, what happens at the base of the vial? How is that sealed to the pipe? Do you get much liquid coming out of the holes in the pipe and ending up there??

 

[tazuk]

yes it has to be upright all the time as you see in pic i sis let it tilt to one side i have some ale in mine it is not seal to the vial just a hole in lid and bottom just cotton in the top where lid is just to act like a filter the tiny holes in a spriall pattern suck air in to ale this was off yank site as it sits in top of a carboy

Commercial breweries typically shoot for 8 to 10 ppm dissolved oxygen in wort prior to fermentation. Five ppm dissolved oxygen in wort is considered a bare minimum for proper yeast growth. Eight ppm of oxygen in chilled wort can be achieved using plain old air (which is 21% oxygen).

Taken from THIS



Just out of interest Tazuk, what happens at the base of the vial? How is that sealed to the pipe? Do you get much liquid coming out of the holes in the pipe and ending up there??

 

[johnnyboy1965]

To gild gold,
To paint the lily,
To put perfume on a violet,
Is just plain silly.

Or to put it another way, what do you think you are achieving by using this?

 

[Mark1964]

thats better if you use swear words they will be either edited or the whole post deleted like the last one was

 

[johnnyboy1965]

On a side from the OP. What costitutes "bad language"?
Am I allowed to post "forked" instead of "f****d. Is this acceptable?...( I put in the axterixes)
Canute, instead of "c**t"....see above.
Language changes over the years, words that were not "PC" are now in common use.
Take the word "*******"...note the capital "B".

If its in the OED its good enough for me, "but some people might take offence?"...offence to what?... That Ive used a word that is noted in a dictionary.
As of future I will not use any word that is in a dictionary

 

[Mark1964]

swear words dont offend me but they could offend other users of this forum. I could have edited the post to get rid of the swear word but chose to delete the post instead. You can swear as much as you like but if you do it will result in a warning then a ban. So go ahead

 

[tazuk]

+1 :thumb:

swear words dont offend me but they could offend other users of this forum. I could have edited the post to get rid of the swear word but chose to delete the post instead. You can swear as much as you like but if you do it will result in a warning then a ban. So go ahead

 

[johnnyboy1965]

tazuk...back to your OP...What do you expect to achieve from your Venturi project?

Everyone else...Does swearing really offend you, deep down, does it offend you ?
Or are you looking for a excuse to be offended?

 

[tazuk]

well it is ment to put air back in to wort as you know when you boil wort etc :thumb:

tazuk...back to your OP...What do you expect to achieve from your Venturi project?

Everyone else...Does swearing really offend you, deep down, does it offend you ?
Or are you looking for a excuse to be offended?