Hi, I want to increase the batch of the above home brew from 1 to 6 gallons on your website. On the 1 gallon recipe it has a pre boil of 1.5 gallons for 1 hour for the 1 gallon batch. If i want to make 6 gallons will i need a pre boil of wort of 9 gallons? It seems a lot. This will be my first all grain attempt, so any advise will be much appreciated.