Accidentally spitting on negatives...

[batwister]

I have a bad habit of blowing dust off negatives and spitting on them, requiring me to rewash. I've done this twice recently and not washed the negatives quickly enough, resulting in damaged spots of the emulsion.
Is it something I ate?

 

[Ian Grant]

No it's you're saliva attcking the gelatin

Ian

 

[Bob-D659]

Saliva contains enzymes to digest food, gelatin being an easily digested one.

 

[cliveh]

Get yourself a blower brush.

 

[batwister]

For it to cause damage so fast, say no longer than 5 minutes surprises me, but I've rarely left it that long to see the consequences. Several glasses of water rather than wine in future.

 

[David Lyga]

See my post in the enlarging forum about just this called "DISGUST WITH DUST NEEDS TO BE DISCUSSED". Saliva eliminated. - David Lyga