Need some advice, been brewing for a long time but may have screwed something new up this time. 5.5-6 gallon batch of beer in a SS Brew Tech brew bucket fermenting in a the fermentation fridge, I used a blow off tube into a small bucket of starsan (mabye 2 qt.). Crash cooled from 70->38 over the course of a few days ( a bit colder than I normally do). Finally went to keg it maybe a week later and found the blow off tube bucket empty, no sanitizer left at all. Where did the sanatizer go...my thought is in the beer?! I have trouble beliving it siphoned up 24 inches of vertical tube into the beer, but i can't explain it otherwise. I've never had that happen so I have no idea of the effects. The beer tasted ok, but i was likely biased knowing there may be sanatizer in the beer. I've been fermenting this way for nearly 2 years and have never had this effect, maybe the 38 degree fridge was so dry it evaporated (wishful thinking)?
Is the sanatizer in the beer?
Is it safe to drink if it is indeed in there?