I think I'm going to really like this board!
I am not the person that asked about this before. The idea only occurred to me recently. I know that there are people that must be doing it, but perhaps they're more rare than I think. Thanks for the tip BTW about writing it up my sailing-hottie is a writer (as one of her talents) and if it works (or goes badly wrong) it might be a good story.
How about this, I'll write up what I think might work and y'all can use your collective wisdom to tell me why I'm wrong.
First I want to do smaller batches than 5 gal because everything on a boat is smaller. Besides I enjoy the process and don't mind having several varieties on hand. We're planning on having a freezer (full of food) and a non-electric cooler/icebox that we will put ice into from the freezer. If necessary I can insulate the fermenter and put ice in the insulated box. So refrigeration is available on a limited basis but in short supply. This is why I think kegs or party pigs won't work. I can't keep them cool enough to dispense and drink. I think I'm going to have to go with pet or glass bottles. I've carried home brewed cider on a 4month trip and never broke a bottle. With bottles I can put a few or 10 in the cooler at a time.
I can boil a enough for 2.5 gal batches using my SS crab boiling pot on my propane stove top. It gets pretty darn hot. From what I've been reading liquid malt extract (which is what I'm used to using) doesn't keep. So I think dried malt extract and or grain is the way to go. DarthBrew has inspired me on stovetop all grain! Grains probably keep well (and can possibly be found overseas). I'll need help with ingredients that keep well and how to keep dry yeast alive. Also if I can buy off the shelf barley at the market in Italy do you think it will brew well?
I was interested in the Beer Machine because it seems like I could sanitize it once and it would be primary and secondary and bottler in one. I was also thinking that party pigs look like a better product and if I could put a 15psi relief valve in one they could be a fermenter also. I also figure that the Lowes 3 gal water bottles might work well.
I figure I need to brew with the seasons. Ale yeast in the tropics and lager yeast in the winter. Pity as I like lager when it's hot and ale when it's cold. Still I need to learn more about temp and yeast and that's something I won't have heaps of control over. I'll need help from y'all here.
I do have a sea water pump that is designed to wash down the boat. Perhaps with a hose and some copper tubing I could make a seawater wort chiller.... I can add that to the home made watermaker that I'm thinking of building from a pressure washer and some membranes.
I don't know how much of a problem motion is. Luckily clarity is what I care about least. I care about taste, alcohol percent, taste, smell, taste, mouth feel, taste and oh yeah, clarity.
Sanitizing is something else I'll need help with. I'd love to use a product that didn't require heaps of rinsing. If I make the watermaker I guess water will be plentiful but I shouldn't count on it. Is there a good one step sanitizer? Cleaning bottles might also be a problem.
That's it in a nutshell for now. More later.