Can you mix luster dust with BC? Can you mix it with piping gel or royal without having some kind of funky chemical reaction or chang in taste or texture or edibility? Thanks!

You can mix luster dust with all of those, but I'm not sure why you'd want to. As a dye, it's probably not your best use of the powder, because you'd need a lot of it. You also won't get that shine you get if you brush it on after the fact. I've never tried it on piping gel, so I don't know the effects. It won't change the taste, may change texture, because it may cause clumping, and no funky reactions, that I know of.

What are you trying to do? and maybe someone can help you get the look you're looking for.

I know you can add to piping gel. But it would only be economical to do small amounts. You can pipe it or paint it on.

Don't know about buttercream, but I know you can paint it onto dried royal icing using the dust mixed with extract.

I mixed gold luster dust with BC just to see what it would look like, it wasn't spectacular...just looked like golden yellow icing. It didn't have any shine or sparkle.

Thanks...just an idea that crossed my mind.