Yes alcohol in the mix affects it ALOT. Think of it this way. You can age eggnog because of the alcohol content. A Moscow mule will be fine. I easy cheat is to modify a ginger ale by boiling it with more ginger slices or ginger juice. Then force carbing afterwards.
I have used the morganthaller recipe too. I actually got it from PF Changs as they use his recipe.
It is good. I substitute other citrus for variety. Pineapple is good too. I also add herbs (mint or juniper).
I haven't tried roasting it. I juice with a juicer designed to handle ginger and pour...
Best place to find the mancan is off of eBay from the Chinese manufactures. Beergrowler2000 is the username. You have to wait a bit, but they are much cheaper.
I have a 64 oz can with the ball lock cap. Works pretty good but I think I want to get a spree top too.
I have been using the mancan as a substitute for what we want. It is not cheap though. I saved about 50% buying direct from China over ebay though. You can get them in .5 and 1 gal growler sizes. Bit of a pain to detach the hoses though.
I have a bunch of the plastic carbinator Caps. Though...
Get a carbonation cap, chill in the freezer then shake in a 2l bottle while pressurizing. That is the fastest way to carbonate and bottle quickly. Takes minutes instead of hours or days. And you can get a lot of co2 in that way.
You can use a paintball tank with an adapter. Mancan also has some that use c02 cartridges. I would get one of the smaller paintball cans and one if the cannon ball kegs or one of the Chinese mancan cans from eBay.
How fast is the water coming out when you do your fills? You lose carbonation there.
Chilled liquid absorbs more c02. It also loses less carb when pouring. A lot more than you think, so yes, put it in the fridge and see how it performs.
Please post the recipe. I have done about 8 different batches of GB and the pineapple mint GB was given rave reviews.
It was a variant if PF Changs ginger beer which was
3 parts monin (simple syrup)
2 parts lemon juice
1 part ginger juice.
Water to desired strength level
It's a pretty good...
I have 4 carb caps and use those too. But if you want to have it end up in a bottle (for presentation, sunlight, or whatever) you lose carb in transferring it so you have to over carb and hope for the best with the estimation. It is the cheapest and most strait forward way to go though.
Gas hose is self explanatory. You need gas tape, clamps, connectors (gas and beer), and some sanitizer and I think that's about it (kegs and standard co2 tank of course). You can use a paintball tank if you also get the adapter.