At present time Tuckamore Custom Knives uses O1 tool steel. Over time O1 tool steel will rust/patina. To mitigate patina, apply a light coat of oil after every use. If you treat your knife as you would any other high performance tool, respect your knife and it will always serve you well. Clean your knife after every use.
Start with a piece of 1500 grit sand paper with a little oil and finish with a leather strop. With an asymmetric single bevel to zero blade, only sharpen the side that is less tall and hone both right and left bevels using the leather strop.
Blades that are the same on both sides weather flat, convex, or a combination of the two, the same applies as above but to both sides.