Posted: 10/09/2014 at 12:11
I believe the American red mulberry fruit is very similar to our black mulberry, so the quantities should be correct. Have you tried googling for an American to British conversion tables to translate the American measurements. If not I do have this recipe from an ancient [1960's] Readers Digest Complete library of the Garden Vol2.:
Ingredients: 4lb Mulberries, 3.5 lb sugar, 1 gall water and use Claret yeast.
Place fruit and water in large bucket and pulp fruit. Add sugar and yeast, keep in a warm place and leave to ferment in bucket for 3 days stirring twice a day. Pass mixture through a coarse nylon sieve then a fine sieve and transfer to a 1 gallon demi-john to complete fermentation. It says it will produce a dry red wine. best of luck