Two different styles of beer in the same tank?

Question:

Q:  Why does OBeer let us put two different beers into the Fermenter at the same time?

Answer:

A:  Although this may seem like OBeer is letting you "mess up", there is logic behind it.  It allows you to do this so that Employee A is not delayed from doing their job if Employee B has not updated the system.  We assume that you will not be mixing multiple brews in the same Fermenter in real time.  NOTE:  When it comes to future planning and using MRP, the system will not let you overlap like this.