I wish I had read this before I replyed to another message in the group.
I have experienced the slow fermentation issue with Cranberry. I figured
there was SOMETHING about the cranberry that caused the fermentation to be
slow, because I have the problem EVERY time I make it. What tends to happen
with me is that fermentation stops completely and the wine does not ferment
to dryness, but I don't particularly care for dry wines soooo... I get about
10 percent alcohol which is fine for my purposes. I've never kept a bottle
for much longer than a year anyway... :-)
Brad
"Mike McGeough" wrote in message
...
Roger McGinnis wrote:
After primary fermentation of cranberry wine to a specific gravity of
about
0.99, I transferred it to a carboy with an airlock. Quite a bit of the
yeast was also transferred. After 2 weeks in the carboy I still see small
gas bubbles being generated. Based on the specific gravity when I
transfered the wine, I am surprised fermentation is still occuring. Will
cranberry wine undergo a secondary fermentation or am I just too
impatient?
Roger,
There's nothing wrong. Cranberries contain Benzoic Acid, a natural
preservative, and usually don't ferment too fast. Do a Google search on
"Cranberries benzoic", and you'll get more than you need to know.
I have some blueberry wine which is still _very_ slowly fermenting
fermenting after all these months since last summer. Blueberries also
contain the benzoic (benzoate) ion, and are naturally protected against
fungal decay, aka fermentation. Sometimes it takes many months to ferment
to dryness, but it eventually gets there. Sometimes a racking
reinvigorates the yeast, so it seems, and this may speed things up a bit,
but I'd rather avoid the risk of unnecessary oxygen exposure.
It's not that you're necessarily impatient, but your particular wine
demands extraordinary patience ;-)
--
Mike MTM, Cokesbury, NJ, USA
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