Warmed cleaning fluids

I asked Paul Frumkin this very question years ago when he was developing the Audio Intelligent enzyme solution. He did some research on it and told me essentially what others have posted here - it's not necessary and will break down the enzymes in the solution.

I do however, use steam following the enzyme soak. I let the enzyme solution work for about 5 minutes and then steam for about 3-4 revolutions onthe VPI before vacuuming off the fluids.

I follow it with a double rinse or the ultra-pure water and have never, ever, had better results.

Are you sure what you're seeing isn't paper? I've come across a handful of records over the years exactly like what you're describing that have "contaminated" vinyl with bits of cardboard and paper in the vinyl.

I can only assume that they were pressed during the oil-embargo 70's era when so many plants were recycling vinyl and labels, etc. got in the mix.

No - I didn't mean paper from the sleeves they are stored in, although that's certainly possible that some has bonded to the vinyl depending on how they were stored; what I was talking about is bits of paper from labels that got mixed in with the recycled vinyl when the records were pressed.

I have found several examples with paper and cardboard bits actually embedded in the vinyl.