What was your final solution for the whiskey glass, which now has more red?
Well, I’m not 100% sure, but I think what solved the whiskey glass problem was switching it over to secondary lighting. I say I’m not 100% sure because, frankly, I’m not even sure I’ve got the secondary lighting set up properly, but the final image is more or less satisfying so I’m not complaining.
As for the color of the whiskey being redder, that I think is simply due to the lighting being different. The whiskey material itself hasn’t changed, just the amount and type of light dancing around in it. So really it’s not so much redder as darker.

