Originally Posted by Paul_DNAP:
“Chances are they do pretty much kill all the bacteria, but what you are up against is a thing called "detection limits". In terms of bacteria your limits of detection is around 12 colony forming units per square centimetre. So even if all of them are all dead, you can only report it as "less than 12" when you measure them. So if you start off with 1,300,000 cfu/cm² and drop it to <12cfu/cm² that is 99.99% reduction because you do the calculation with the 12.
So you can't claim to have killed that last 0.01% because you couldn't see it if it was there, so you can't know for sure that it isn't there when you don't find it.”
I am always impressed with people that can do this, my brain does not compute it!!
Also, i really, really like the last sentence as if you said it out loud it would confuse a lot of people even though it makes perfect sense..... i think i may have a little tiny crush on you lol...........

.......don't panic though, i am old..and short