What method can effectively clear Ninhydrin stains?

Using household bleach is an effective method for clearing Ninhydrin stains due to its strong oxidizing properties. Ninhydrin reacts with amino acids present in fingerprints to produce a color change, making the fingerprints visible, but the resulting stains can be persistent on surfaces. Household bleach works by breaking down the organic compounds in the Ninhydrin stain, effectively removing the color and returning the surface to its original state.

Although other options such as rubbing alcohol might be considered for cleaning purposes, they do not possess the same chemical efficacy in breaking down the organic residues from the Ninhydrin reaction. Pure water and alcohol swabs may not have the necessary action to clear these stains effectively, as they primarily function by diluting or wetting rather than chemically breaking down the stains.