Is anyone else testing for beer spoilage with HLP tubes? I inoculate a 1 mL sample from the original wort, FVs, and BBTs. My problem is with the interpretation. It seems like there is small particulates in many of the tubes. Some look almost like a hair, others are more circular. This is even for some uninoculated tubes. I haven't seen anything that jumped out to me as being a clear positive result, but i've questioned some. How large are the colonies generally? I also tried to extract a particle from one of the tubes to gram stain it, however this was also difficult. I do not want to record false negative or positives.
Any info on how to better interpret HLP tubes would be great.
Thanks!
Any info on how to better interpret HLP tubes would be great.
Thanks!
Comment