Funny one for you. I have two keg kegerator and just took out a corney. That meant a new stout corney joined a near empty blonde ale.
My setup is single liquid to tap and "T" to both kegs for gas.
I decided to finish off the blonde ale before starting on the new stout.
What a surprise when the blonde ale started to pour as a dark ale...........
Looks like the stout moved up the gas pipe and entered the blonder ale.
Absolutely lovely mix, really nice dark ale is the result.
Okay, poured a pint of the stout and it is lovely, certainly tasted it in the blonde ale from earlier. What a happy circumstance.
Makings of a new recipe?