Inspired by
@LunaSilver sharing her mistake, I also want to share a big one I recently discovered hoping to spare others from going through what I did.
In a recent rehab, the turnlock had an unusual amount of verdigris. A bag I was wearing was close by and for whatever reason I looked at the turnlock and saw there was verdigris on it! Imagine my surprise since I live in dry inland Northern California and thought verdigris only happened to bags closer to the coast where it's hot and humid, like Florida. I removed the turnlock and discovered more verdigris underneath. I went on to inspect more bags and found verdigris on 6 more bags I had cleaned and conditioned throughly, including two recently finished!
I usually try to clean any visible verdigris really well on the turnlocks and other hardware. I don't remove the hardware unless it's absolutely necessary since I would hate to scratch the hardware or the leather in the process. A while back someone said they always remove the turnlock and I thought that was overdoing it. Big mistake! Wished I had listened then!
Here is the process I used to clean the verdigris. Most of it is gained here from other wonderful rehabbers. Scraped off as much of the verdigris as possible from the turnlock and carefully from the bag. I used a small flat screwdriver. Using paper towel, wipe the rest of the verdigris from the turnlock pieces and drop them in full strength vinegar to soak. Make sure to get it all out of the groves on the bag, otherwise you'll have to repeat the next steps again, like I did! Using an old toothbrush, wash the area with verdigris with dawn, vinegar and water mixture in a cup, rinse it off with water, then dunked the whole bag in vinegar and water to avoid any water stains. Dry and condition as you normally do. I did the same to the other bags and hope the verdigris doesn't come back!
I've been a long time lurker here learning so much from everyone. Thanks to all who so freely share your experience and knowledge!