I don't think bees are overly attracted to fruity juices, beer. They are in search of flower nectar. I don't think that they would take the time to try and figure out how to get into a wasp trap. I haven't seen any bees in the wasp traps and they are hung all over the apiary.
I use beer, diluted, it is reasonably cheap. But I think that I will use some other products, like some posts have indicated. Have the wonderful and beautiful day, good health. Cindi