"Probably so they can sell it to more people," Greta says drily. There's no real need to sugar-coat it, and she thinks Saoirse would appreciate it more if she didn't. Besides, it makes sense in a way she's certain the lass can follow. "I've looked at some of the ingredients lists on the boxes, and some of them... well, calling it 'egg-nog' at all is a bit generous, if you ask me." There's an entirely different sort of egg-nog being sold at the liquor stores, but obviously Saoirse wouldn't have seen those.