I've just transferred my apple wine from the FV to demijohns and when cleaning the fv, I found the red & black "sand grains" shown in the following picture: http://imagebin.org/290966 (*) Since none of the ingredients -- apples, lemon rind and juice, pectolaise, sugar, water, yeast, nutrient -- is either red or black, it caught my eye. Any thoughts what it might be? Cheers, Buk. (*)I tried wrapping the url in and to no effect. I also tried selecting it and clicking the buttons above, but none of them seemed to do a damn thing?