A better, safer way to clean (Product is 20% stronger than traditional vinegar, but gentle on surfaces). Non-toxic. Milder aroma. Stronger effectiveness. 6% concentration. Mizkan bringing flavor to life. Four Monks Cleaning Vinegar is not recommended for granite and marble surfaces. For more tips on vinegar usage, log on to: www.vinegartips.com. Visit us at www.mizkan.com. For more ideas visit our website.