I found a pear wine recipe on homebrewit.com and have placed everything required in the primary pail. This recipe produces one gallon of wine. After 24 hrs it calls for "one package of yeast, good for up to 5 gals." All I have here at home is a half package (little less than an oz) of Lalvin's Bourgovin RC 212 yeast. Is it OK to use just this half pkg for this small batch? Any assistance would be appreciated...thanks in advance. Kim
I don't use Lalvin, but one package of Redstar dry yeast is 0.176 ounces. That is sufficient for up to 5 gallons. If you make a yeast starter, and let the colony propagate before pitching, you can probably use it for more. In an aerobic environment yeast will grow, and --- theoretically --- one yeast cell could be used for any size batch. In practice, your wine might spoil before the yeast colony is large enough, but I think 1/2 package of any yeast should be more than enough for a one-gallon batch.
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