I remember my first tournament I ran, with a Jack Detroit tournament set I once owned.
I called it the “All Jacked Up” event. I had pizza ordered for the dinner break and what a lesson I learned. Pizza and poker don’t work for me. Not together at least.
I found numerous chips with Pizza Sauce on them. I had to clean many $1K and $5K chips. It actually tilted me so bad, I just stopped using such expensive chips for my games. I never felted that set again. Sold it really, and sure I miss it, but I’d never have felted it again, so it was good riddance.
Nowadays, I’m using CPC stockers to run my tourney games, and the yellow $1K chips are definitely dirty. I need to consider a bath for them. Handwashing I guess. Don’t have a sonic and I have learned TSP will eat the chips. So I’ll have to tackle the full cleaning job.
I’ve always had great success with Dawn, toothbrush, and mineral oil.