I assume this topic appeared a couple of time in the past, but here it is again … what would be the best cleaning product to let sit in a dirty keg. I don’t mind rubbing a bit, but I’m worried about the siphon tube cleanliness. Same thing for plastic beer line and faucet, is it the same product. Being in the subject, I’d also like to do a big cleaning of my plate chiller, my silicon tubing and my marsh pump … how do you proceed with that?
Hot PBW works well. You can also make your own with 2/3 oxiclean and 1/3 TSP substitute. Disassemble the dip tube let it soak, then rinse it and the keg with hot water and push sanitizer out of dip tube when you sanitize the keg for final rinse/sanitation.
Hot PBW recirced reverse through chiller will work well. Be sure to pump boiling water through it, or boil the entire contraption, or bake, before each use.
I will usually take apart the keg and toss the parts into it, add hot water and OXY and allow to soak, then rinse. I will then assemble the keg, add hot water and OXY again and run through the taps and lines, then repeat the process with Star San to sanitize prior to racking the beer for set up. I’ll usually take a brush to the dip tube as well.
I’m also sure to use keg lube on all the gaskets during assembly and obviously check for any leaks prior to racking and set up.