Abstract: A synergistic bactericide and bacteriostatic organic sanitizing/disinfectant/cleaning formulation of acetic acid and propionic acid or salts thereof, having a ratio acetate (A): propionate (P) from 4:100 to 20:1, dissolved in water and diluted as required, to a final concentration in the range of 0.5% w/v to 50% w/v of the mixture in the formulation. Particularly, the present formulation comprising 0.03-15% w/v of acetate buffer and 0.04-17.50% w/v and a q.s.p filtered drinking water, pH 5-6 to be used to the food industry as a Generally Recognized as Safe Compound (GRAS), and having a significantly increased sanitizing and sterilization effect on food as well inert hard, semi-hard and soft surfaces, being safe, environmentally friendly, of broad-spectrum and high efficiency. Such foods can be selected from harvested or fresh fruits and vegetables.