I should say upfront that I am still a complete novice
but found I didn't need any expertise to make beer onboard using the following system. Forgive my terminology ignorance:
I did some brewing on my Cal
33 during a two year trip. Beer got expensive around Australia
and so I studied breweries on other boats and came up with a simple version that worked great for me. Down under you can buy a can of Wort for $12 in any store. One can made over five gallons. I bought a six gallon white plastic container from the hardware
store and stuck a fishtank adhesive
temperature gauge to the side.
I would boil a couple gallons at a time in my biggest pot and pour it into the big container. You don't pour the yeast in until the temp drops enough anyway. It's all in the instructions with the Wort, yeast included.
I let it sit for two weeks. I didn't have the bubbler device so I just let off pressure everyday. The temperature of the hull
sailing through the tropics yielded perfect brewing temp. As told to me by the Australians, the movement has no effect on the beer.
I then decanted into 2 liter plastic soda bottles with a bit of sugar in the bottom to continue the distillation and carbonation. A week or two later I had beer. I was surprised to find that even my very first batch came out tasting just like beer out of a barman's tap.
With 10 or 12 cans of wort onboard, my watermaker
and a bunch of sugar I decided that I could keep away from civilization for a year. I merrily brewed beer all the way across the Indian and S. Atlantic Oceans.
I cleaned all vessels with a splash of bleach with a fresh water rinse. Someone would later explain to me that iodine leaves less of an aftertaste. I don't recall
having a taste problem. I did have a taste problem with one batch that I made from rain-catch water that I got from an island ashore. I probably didn't boil it long enough. I never had a problem with water I made.
I used coopers.com.au but there are lots of mail order brew places here in the states and up there in Canada