No need to reduce the vinegar beforehand.  Decorative & delicious, 7.3 fluid ounces.BLAZE® is ready to be used!  It can be added at the end of the cooking process because it doesn't need to be heated further.  It's ideal to decorate the classic filet with Balsamic Vinegar or escalopes, it's special with grilled meat, with stewed fish & white meats.  It's savoury on rice, salad, cold pasta salads, chips, parmesan cheese.