I have never seen fruit juice ferment so fast as this grapefruit must! On all my ferments I use Actiflore F-33 yeast by Laffort. Usually - no matter if I ferment my squeezed apple must, date syrup wash or bitter orange - they take two weeks to finish fermentation. This time I squeezed about 15 gal of grapefruit juice (red and white), added two kg of brown sugar, pitched in 10 gr of nutrients and 20 gr yeast - and after four days of vigorous ferment the airlock stopped bubbling. I checked the hydrometer and it seems to have dried out. No sweet on the tung neither. How is this possible? Anyone has an explanation?
*It can't be temperature because it was between 14-21 degrees celsius all the time.
Grapefruit Fermentation Super Speed
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Re: Grapefruit Fermentation Super Speed
Man, that sounds tastey to begin with. What'cha makin'?
"Woe to those who are heroes at drinking wine and champions at mixing drinks" - God (Isaiah 5:22)
So evidently, God wants us to drink our whiskeys single barrel and our Bourbons neat.
So evidently, God wants us to drink our whiskeys single barrel and our Bourbons neat.
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Re: Grapefruit Fermentation Super Speed
Fruit brandy. Lets see how it comes out...
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Re: Grapefruit Fermentation Super Speed
Sounds interesting, not much sugar - does grapefruit have a lot in it to start with ?
Re: Grapefruit Fermentation Super Speed
Grapefruit juice only has about 22g sugar per cup... or 5.28kg in 15 gallons. Plus the 2kg of brown sugar
7.28kg of sugar only makes about 7.5% potential alcohol so it should ferment out pretty quick.
7.28kg of sugar only makes about 7.5% potential alcohol so it should ferment out pretty quick.
"Woe to those who are heroes at drinking wine and champions at mixing drinks" - God (Isaiah 5:22)
So evidently, God wants us to drink our whiskeys single barrel and our Bourbons neat.
So evidently, God wants us to drink our whiskeys single barrel and our Bourbons neat.
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- Novice
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- Joined: Mon Nov 28, 2016 12:40 am
Re: Grapefruit Fermentation Super Speed
Makes sense - less sugar equals shorter fermentation.
Thanks!
Thanks!
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Re: Grapefruit Fermentation Super Speed
I think you've got enough flavour to increase the sugar some.
[edit - there's a lot of acid in grapefruit for those who think low PH is a Bad thing ]
[edit - there's a lot of acid in grapefruit for those who think low PH is a Bad thing ]