Hello Reg,
Sorry - this was a bit buried so missed it before.
I had to understand first what GBP liquor was - outside my knowledge but Ginger Beer Plant now understood.
Do you know what the SG of the orignal must was after you added the sugar. From what you provided (and making the assumption that the SG of the apple juice was 1.060) I calculated it would be approximately 1.070. (4.5kg sugar in 25 litres).
So if you ferment that to dry it will be about 10.5% ABV. Check this if you can but if you are making cider and these assumptions are correct I wouldn't add any more sugar.
In an ideal world I think I would separate the must and ferment the two things completely independently. However as you have already started it sounds like GBP will only make it mildly alcoholic so plenty of sugar to go. I would liken this then to fermenting a little on wild yeasts and then adding a cultured yeast starter.
In order to do that I think you will need to get a really strong yeast starter going. I wouldn't use cider yeast but choose a killer strain of yeast that will dominate - Lalvin K1V-1116 or Gervin Varietal E would be my choice.
Get this starter going as per tutorial here: http://www.winesathome.co.uk/forum/showthread.php?t=908.
Allow 48 hours though before pitching into your brew as it will have quite a lot of work to do. Theoretically it should swamp your GBP stuff as it would other yeasts but as I haven't heard this tried before who knows?
Also, when you say bottle off some of the brew then I would avoid using ordinary glass bottles. Whilst it doesn't sound like GBP creates a lot of C02 it sounds all a bit hit and miss so avoid creating glass hand-grenades.
Sounds an interesting experiment so let us know how it goes.
Sorry - this was a bit buried so missed it before.
I had to understand first what GBP liquor was - outside my knowledge but Ginger Beer Plant now understood.
Do you know what the SG of the orignal must was after you added the sugar. From what you provided (and making the assumption that the SG of the apple juice was 1.060) I calculated it would be approximately 1.070. (4.5kg sugar in 25 litres).
So if you ferment that to dry it will be about 10.5% ABV. Check this if you can but if you are making cider and these assumptions are correct I wouldn't add any more sugar.
In an ideal world I think I would separate the must and ferment the two things completely independently. However as you have already started it sounds like GBP will only make it mildly alcoholic so plenty of sugar to go. I would liken this then to fermenting a little on wild yeasts and then adding a cultured yeast starter.
In order to do that I think you will need to get a really strong yeast starter going. I wouldn't use cider yeast but choose a killer strain of yeast that will dominate - Lalvin K1V-1116 or Gervin Varietal E would be my choice.
Get this starter going as per tutorial here: http://www.winesathome.co.uk/forum/showthread.php?t=908.
Allow 48 hours though before pitching into your brew as it will have quite a lot of work to do. Theoretically it should swamp your GBP stuff as it would other yeasts but as I haven't heard this tried before who knows?

Also, when you say bottle off some of the brew then I would avoid using ordinary glass bottles. Whilst it doesn't sound like GBP creates a lot of C02 it sounds all a bit hit and miss so avoid creating glass hand-grenades.
Sounds an interesting experiment so let us know how it goes.
Comment