The invention concerns a method which consists in: providing a solution of antifungicidal and/or anti-oxidizing aqueous composition (12), placing the fruits or vegetables (3) in retaining means (4), lowering the retaining means to immerse completely the fruits or vegetables in the solution, raising the retaining means to remove the fruits or vegetables from the solution. It comprises, after completely immersing the fruits or vegetables and before removing them from the solution, intermediate steps which consist in: raising the retaining means so that at least part of the fruits or vegetables contained therein emerge from the solution, and lowering the retaining means to completely immerse the fruits and vegetables contained therein in the solution once more.