[Spunjer]

all the years i've tried etching moro blades i finally honed a certain technique in which i can bring out the lamination; visibly obvious, yet subtle enough so as not to overtake the overall aesthetic of the blade. good examples are these barungs.
i use the usual stuff: dishwashing soap and acetone to strip the oil, then vinegar and baking soda. after achieving the desired etch, i would run hot tap water on the blade to thoroughly was off any chemicals left on the blade.