My false bottom seems to be scratching up the inside of my kettle when I take it out and put it back in. Should I be concerned? Can bacteria hide in those surface scratches or is that sanitation paranoia??
Take some silicone tubing, cut a slit in the tubing, and wrap it around the outside edge of the false bottom. No more scratching and a tighter seal for the FB.
I only use the FB in my mash tun. I boil in another pot, but I dig the idea of putting silicon tubing around the edge, tight seal and no more "fingernails scratching a chalkboard" types of sounds
The silicone will definately soften the edges, but I don't see why you keep stressing that you only use the FB in the mash tun. Nearly all those that use FB's do exactly that. You boil anything that has come in contact with the mash tun. After that, a clean pot is a clean pot. Besides aesthetics, what is your concern with scratches on the hot side??