On Tue, 30 May 2006 10:32:15 -0400, mail box
wrote:

On 5/28/2006 11:59 AM, Jim wrote:
I am curious to know how much Fermaid K and how much DAP one should
use per 100 pounds of grape must? I was thinking 15 grams of Fermaid
per 100lbs of must and 30grams of DAP per 100lbs. I feel with this
combination I should never have any fermentation problems.


Jim,

The manufacturer makes the following recommendation for Fermaid K:

"For normal applications, the recommended addition rate of Fermaid is 5
grams per 20 liters. Fermaid should be stirred into the must just prior
to the yeast inoculation."
Fermaid includes a nitrogen source (which may be DAP), and so this may
be all you need to add.

Opinions on DAP quantities and when to add them vary, but a good
starting point is the label of the DAP you have purchased. There should
be usage instructions from the manufacturer listed there. Just be aware
that the Fermaid K does include a nitrogen source, and that reducing the
addition of the DAP is probably a good idea based on that fact. You
might consider contacting Lalvin to ask this question of them directly.


Cheers,
Ken