Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
I find sunshine does the trick.
I'm sure there are many other things you could do; the trick is to kill the mold without damaging the saddle. Baking it in a 175F oven will probably kill both the mold and the saddle (similarly, dousing it with gasoline and lighting a match to it would definitely kill the mold). Anything that changes the chemistry of the leather is basically damage. I don't know about how effective vinegar would be, but (being acidic) probably won't change the ph of the leather unless you do something extreme.
But sunshine works for me.
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