I want to make some fruit wine coolers for the summer. I will make an Advintage Bellissima melon zinfandel blush kit. I want to put it in the small cooler sized plastic bottles with screw on caps. These bottles are sold for these wines. The Advintage site says to consume these wines young as they lose their fruit flavors if aged. My question is if I want these for say July and August when should I put the kit on. How long will they last in the bottles?