New still smells funny

[HodyMac]

Newbie here. I finished my pot still, and did a 50/50 vinegar run last week. Today I did a sacrificial alcohol distillation to clean out any remaining flux, etc...

So, I figured I’d distill a case of PBR that’s been in my basement for a few years. So the run went well, but the inside of the copper tubing smells like PBR. Any recommendations for cleaning the PBR smell out of the still? I wouldn’t want that taste in a non-sacrificial run.

I’ve got some deathwish wheat germ bubbling away downstairs, and I’m looking forward to running that.

Thanks.