First post. Looks like Mike may have shifted the cleaning duties to me, as I just bought 1000 PCR's from him today. Nice price but I was warned about a need to clean. So when I get these I will need to find a good method to clean these.
I saw you picked up the PCR set. Nice pickup! I have a set of PCR chips myself, and I had been watching that ad, and was thinking several times about pulling the trigger on the set myself, but didn't. Hope you like them.
Here are some tips I can share about cleaning chips, and PCRs specifically. Just recently, I acquired some PCR chips that had been used a lot and needed a light cleaning. Since all the PCRs are Paulson home chips, they started out brand new to the consumer, and shouldn't need a lot of cleaning and heavy duty cleaners (like TSP) that casino dirty chips need. Some of the chips in the photo didn't look too dirty, so you may need to judge whether they need a cleaning or not.
Some of the 'dirt' on PCR chips can be more from color transfer of the darker clay to the lighter clay areas from the chips being stacked, played with in a game, or just shuffled. Colors like black, dark green, and dark blue have worse color transfer than other colors.
If you are going to use an ultrasonic, I'd limit the time with the machine on to 30 seconds or less, to avoid damage to the foil hotstamp (yes, from experience). For the dirty PCRs that I cleaned, I ended up soaking them first in very warm water & Dawn for about 10 minutes before transferring to the ultrasonic, but then I actually went back to the fully by-hand cleaning method, and skipping the ultrasonic, to avoid damage to the hotstamp . And I thought hand cleaning worked better for the PCRs, but I only had 300 chips to clean, and they weren't that dirty.
For hand cleaning, I'd second
@duffman 's method above using a toothbrush. Here's my method:
- soak 40-100 chips at a time in very warm, not too hot, water & dawn.
- soak between 5 and 20 minutes, depending on the level of dirt. If the only soap is dawn, soaking that long is fine for the hotstamps.
- optionally stir the chips a little while soaking to make sure chips faces don't stick together and keep the soapy water from getting to the surface.
- if chips are
really dirty from use in a poker game, a little bit of TSP can help cut the grease and grime
- after soaking, take out chips 20 at at time and put in a rack. then grab a barrel of chips together, hold flat on a towel, and use a toothbrush and soapy water to brush the barrel, then rotate it to brush the edges of 20 chips at once. In my experience, this gets the edges much cleaner than ultrasonic alone.
- if there is dirt on the surface of the chip, then spread the chips out flat on a thin towel, and use some more soapy water (I use a foam soap dispenser with water and some Dawn in it) and a toothbrush to clean the edges. Go in a circle around the hotstamp, and try to avoid too much direct contact with the hotstamp, although a toothbrush won't do much if any damage.
- optionally, you can put your thumb over the face of the hotstamp while using the toothbrush, and could even use rubber cleaning gloves to protect your thumb from the scrubbing
After cleaning and drying, I like applying a coat of mineral oil to the faces & edges. This can take some time, but the chips look better, and this is just a guess -- but it might help a little bit to help prevent 'color transfer' in the future, as the oil may add a protective layer to the chip.