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Old 02-27-2013, 05:06 PM   #1
Dec 2012
tlaxcala, tlaxcala
Posts: 1

This is Edgar from Mexico
I hope you can understand me due to my English.

I brew a Tamarindo beer, this is a very common fruit in Mexico, and I decided to brew.
My question is, how do I know if I have infection with Lacto?
The point, Tamarindo is a very acid fruit, so every time that I brew pH is very low. But some of my friend told me that was infected with lacto. Because he tasted very acid.
Smelling wasn't bad, it was opposite.
However, I repitched the same yeast from tamarindo to another wort. And now I'm worried if I have two contaminated batches or not.
Do you kno some test to identify if my beer is ruined or not?

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Old 02-27-2013, 10:32 PM   #2
benbradford's Avatar
May 2007
Denver, Colorado
Posts: 1,010
Liked 34 Times on 30 Posts

lacto infection is going to look like it has a slimy white film over the top with little bubbles from the co2 trying to escape but getting caught under the slime. It also tastes like sour green apples and tastes too bad to drink. The general advice when facing a lacto infection is to drink it fast before it tastes bad. Another idea is going to be consider taking the beer to the next step and infecting it more to make something interesting. Brett if i remember correctly will kill lacto.
I think it's too bad that everybody's decided to turn on drugs, I don't think drugs are the problem. Crime is the problem. Cops are the problem. Money's the problem. But drugs are just drugs.
Jerry Garcia

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Old 02-27-2013, 10:46 PM   #3
sweetcell's Avatar
Jan 2012
Rockville, MD
Posts: 5,190
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brett will not kill lacto - in fact both are alive and well in flanders reds, lambics, etc:

how and when did you add the tamarindo? did you sanitize it? did you add it to secondary? what sort of beer are you brewing - is it a strong (big) beer?

most fruit have lacto and/or other yeasts on their skin. infection will depend on how you treated the fruit, what you added it to, and when you added it.
What hops should I grow? Looking for cheap honey?
- Conditioning: Empty-the-freezer DIPA (1 pound of hops in last 5 mins, Chico & 644 split)
- Drinking: English Barleywine (half on brett), local sour cherry kriek #2, sour blond on second-use cherries, 3726 + dregs mega-mix sour, Bugz n' Critters sour.
- Aging: 3726 saison w/ Lochristi, GNO 3724 saison w/ brett mix, cherry mead, acerglyn, and a few other sours...

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