As I understand it enzyme toothpastes are supposed to supplement the enzymes which are already present in saliva. The enzymes are not there to remove stains but to encourage microbial production of hydrogen peroxide in the mouth, which enhances gum and tooth health: https://www.nature.com/articles/s...

I like science - smear some butter or margarine (if vegetarian) on your fingers. handle a record to leave finger prints and try different dwell times. I think that the prints will still be visible after 15 minutes at 35, but give it a go. I don't think this would be a valid test. The oils secreted ...

Thanks TroutFisher, very kind. I think that the idea of using distilled water rinse prior to vacuuming is an excellent one; again I have no experience of washing vinyl (I have tried wood glue and it works well - although messy and nerve wracking :shock: ), but I would have thought that a thorough ri...

I like science - smear some butter or margarine (if vegetarian) on your fingers. handle a record to leave finger prints and try different dwell times.
I think that the prints will still be visible after 15 minutes at 35, but give it a go.

By the way - about 8 years of my industrial experience was working on PVC research, so I don't buy in to the idea of washing "mould release agent" from new records. Vinyl for records wasn't my specialism, so treat my view with caution :grin: , but I don't think anything was sprayed on the ...

Don't worry, I wouldn't make that assumption. I am right about Vanish :grin: I do have a rough idea about what I talk about - about 15 years R&D in chemical industry, good qualification in analytical Chemistry, 30 years teaching science in secondary school (enzyme activity is taught from KS3). M...

Vanish uses a peroxide - chemical releases oxygen to break bonds in the stain.
It is not an enzyme.

By the way, I am still interested in where you got your information on "new enzymes"

please read carefully - you may notice my proposition about "dwell time"

Modern day ones can work at low temperatures. And my ultrasonic cleaner cleans at anything up to 50 degrees. I use 35 degrees. Which is higher than enzymes in washing powder are used at for delicate washing. Not sure where you get your information about "modern enzymes". Enzymes are "...

Many years ago I worked on photographic film research. To remove gelatin (a protein) which "held" the silver salts (and recover the silver from photographic film) we used pepsin - it works best in acidic conditions and at 30 - 40 degrees c - rather like your stomach conditions. https://www...