Toxicity of Indigo and Indigo Dyeing

Q: What is the toxicity of the indigo dye you sell? Would it be okay to use it to dye a cutting board made of wood?

A: The indigo I sell would be safe to use to dye a cutting board in terms of toxicity (although, important to note this is not true for all indigo dyes as many indigo dyes on the market - even those labeled “natural” - are produced using toxic chemicals).

So, while it would be safe to dye a wooden cutting board with the indigo I sell, I do want to caution that indigo is not a particularly "penetrating" dye. It will only dye the surface layer of the wood and if that is disturbed (cutting, sanding, chipping), the un-dyed areas below will be exposed.