We are having some troubles with our HLP testing process. Some samples come up cloudy. There doesn't appear to be growth of colonies but the liquid is definitely cloudy. We've had some of these beers sent to a lab and they came up clean. Why would our tests be coming back cloudy?
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Originally posted by GulfSide View PostWe are having some troubles with our HLP testing process. Some samples come up cloudy. There doesn't appear to be growth of colonies but the liquid is definitely cloudy. We've had some of these beers sent to a lab and they came up clean. Why would our tests be coming back cloudy?
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This is good to know! I've had some tests come up cloudy as well. So will a positive for lacto or pedio always look like whole colonies in suspension opposed to haziness?
-Ziggy
Originally posted by Ploughman View PostIf you're sample still has yeast in suspension it will turn the HLP cloudy. I pop mine in a fridge for at least half an hour before using but samples taken in early fermentation can still leave me with cloudy tubes if I don't give the yeast enough time to settle.
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Originally posted by ziggy beersci View PostThis is good to know! I've had some tests come up cloudy as well. So will a positive for lacto or pedio always look like whole colonies in suspension opposed to haziness?
-Ziggy
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