I'm going to be working on a formula and encourage some debate on this thread. I've tried a sample of the new product in the $60 bottles and it works great and smells great. I'm guessing you would taste the Rosemary, but it would be hard to believe it could hurt you; maybe smoking the oil itself would be bad.

The products that contain Rosemary claim you spray it right before eating the vegetables.

I just don't have an answer but I suspect its much like neem oil in that you can use it but will affect taste if done too closely to harvest...