I had a recipe delivered to me with 3 kinds of hops. Northern Brewer, Colombus, and Cascade hops. It says to combine the northern brewer and colombus in a sack and boil for 5 minutes. and to dry hop with the cascade immediately after the finished wort is poured into the fermenter. Now in case you can't tell this is a Mr. Beer recipe. My question is, how long should i actually boil each hop type for, since i plan on doing a one hour boil of my wort.