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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
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Link Posted: Sat Dec 03, 2016 9:33 pm Post subject: Lactic Acid |
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I just got some Lactic Acid (88%) to add to a wheat beer I'm going to brew tomorrow. When I go to EZ Water and enter everything in. It says I need like 6 mL. That seems like a lot. Should I be concerned? I've attached my profile in the attachment. I'm at 5.86 if I don't add anything.
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jcav
Joined: 21 Sep 2011 Posts: 205 Location: Central Florida
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Link Posted: Sun Dec 04, 2016 1:58 am Post subject: |
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If you have a ph meter and your worried it's too much acid, you could add 2ml and take a reading with your ph meter and go from there.
John
_________________ "Perfection is unobtainable, but if you chase perfection you can catch excellence"- Vince Lombardi
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
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Link Posted: Sun Dec 04, 2016 2:12 am Post subject: |
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My concern is adding an off flavor with the acid. When I ready the remarks from Kal, he uses less than 1 mL. Do you think I'll be fine?
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jcav
Joined: 21 Sep 2011 Posts: 205 Location: Central Florida
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Link Posted: Sun Dec 04, 2016 2:16 am Post subject: |
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Yes, it takes a lot more than that to be at the taste threshold. Now if you were using Phosphoric acid that would be different. You have to add a lot more of that to make a ph change and you can taste that sooner. You should be fine with that amount or less.
John
_________________ "Perfection is unobtainable, but if you chase perfection you can catch excellence"- Vince Lombardi
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
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Link Posted: Sun Dec 04, 2016 2:22 am Post subject: |
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Thank you John. Water treatment is new to me. I didn't want to screw up a batch by trying to make it better. If that makes sense.
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jcav
Joined: 21 Sep 2011 Posts: 205 Location: Central Florida
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Link Posted: Sun Dec 04, 2016 2:30 am Post subject: |
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No problem, if you do have a ph meter, add 2ml stir and take a reading. You could always add more and up to the 6ml but I would see what the meter was telling me. Just my two cents. Good luck brewing your batch!
John
_________________ "Perfection is unobtainable, but if you chase perfection you can catch excellence"- Vince Lombardi
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Tennessee
Joined: 04 Apr 2015 Posts: 116 Location: Tennessee
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Link Posted: Sun Dec 04, 2016 1:53 pm Post subject: |
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I average 6ml per 12 gal batches to reach my target ph . It also depends on what grain your using. Source water PH 8-9.
_________________ Kal Clone (30amp),Mash Re-Circulation Manifold, Custom BK Hop Filter.
Last edited by Tennessee on Thu Mar 23, 2017 1:20 pm; edited 2 times in total
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Sun Dec 04, 2016 1:59 pm Post subject: |
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dp Brewing Company wrote: | My concern is adding an off flavor with the acid. When I ready the remarks from Kal, he uses less than 1 mL. |
Where did you read that?
Take a look here too: http://www.theelectricbrewery.com/parts-list-using?page=4
Specifically the section on 88% Lactic Acid and how much is required before it starts to affect the taste.
Kal
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
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Link Posted: Sun Dec 04, 2016 7:16 pm Post subject: |
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kal wrote: | dp Brewing Company wrote: | My concern is adding an off flavor with the acid. When I ready the remarks from Kal, he uses less than 1 mL. |
Where did you read that?
Take a look here too: http://www.theelectricbrewery.com/parts-list-using?page=4
Specifically the section on 88% Lactic Acid and how much is required before it starts to affect the taste.
Kal |
That is where I saw the amount you use. I was off by the amount you said you use, "0.1-0.2 mL per gallon". Sorry didn't mean to misquote you. Was going by memory not actually looking at the page.
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Mon Dec 05, 2016 2:39 am Post subject: |
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No worries!
When you said you needed 6ml in your batch, how many gallons is that being added to?
Kal
_________________ Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
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Link Posted: Mon Dec 05, 2016 3:34 am Post subject: |
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The mash tun had 5.8 gallons in it. I checked the pH and it was 5.45. So I didn't have to add any acid to the mash after all.
_________________ Visit dp Brewing Company
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Mon Dec 05, 2016 4:50 am Post subject: |
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dp Brewing Company wrote: | The mash tun had 5.8 gallons in it. I checked the pH and it was 5.45. So I didn't have to add any acid to the mash after all. |
Was the 5.45 pH measured at room temp or mash temp?
pH changes with temperature. The correct target all depends on how you measured.
See about 1/2 way down here for complete details: http://www.theelectricbrewery.com/brew-day-step-by-step?page=6
Kal
_________________ Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
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dp Brewing Company
Joined: 08 Jul 2013 Posts: 664 Location: Midwest
Drinking: Chocolate Taco, Raspberry Mango Cider, American X, Sandy Dunes
Working on: Nothing
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Link Posted: Mon Dec 05, 2016 2:32 pm Post subject: |
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kal wrote: | dp Brewing Company wrote: | The mash tun had 5.8 gallons in it. I checked the pH and it was 5.45. So I didn't have to add any acid to the mash after all. |
Was the 5.45 pH measured at room temp or mash temp?
pH changes with temperature. The correct target all depends on how you measured.
See about 1/2 way down here for complete details: http://www.theelectricbrewery.com/brew-day-step-by-step?page=6
Kal |
I took the sample at 120 degrees. I thought my meter had ATC but maybe it doesn't. I'll take future readings at room temp.
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kal Forum Administrator
Joined: 12 Dec 2010 Posts: 11123 Location: Ottawa, Canada
Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
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Link Posted: Mon Dec 05, 2016 3:12 pm Post subject: |
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Don't confuse the inclusion of automatic temperature compensation (ATC) in the pH meter to mean that the target range will always be 5.2 to 5.4 regardless of temperature, as that would be incorrect. ATC only corrects for electrode sensitivity that varies with temp. At room temp pH typically reads 0.2 higher because it actually is higher.
So again, unless a temperature is given every time a pH number is given, that pH number is meaningless. You can read at either mash temp or room temp. You just need to understand that the targets will be different.
For this reason anywhere in my instructions where I mention a target pH (or pH range), I always include the temperature as well.
See about 1/2 way down here for complete details: http://www.theelectricbrewery.com/brew-day-step-by-step?page=6
Kal
_________________ Our new shop with over 150 new products: shop.TheElectricBrewery.com
We ship worldwide and support our products and customers for life.
Purchasing through our affiliate links helps support our site at no extra cost to you. We thank you!
My basement/bar/brewery build 2.0
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