An objective of the present invention is to provide a defoaming agent for food having a defoaming effect equal to or higher than that of silicone resin based defoaming agents. A defoaming agent which is an esterification product of (i) diglycerol and (ii) caprylic acid and is characterized by satisfying the following formulae (1) and (2): 0.8 ‰¤ A + B + C / A + B + C + D 0.5 ‰¤ B + C / A ‰¤ 10 when the monoester content in the product is represented by A%, the diester content in the product is represented by B%, the triester content in the product is represented by C%, and the tetraester content in the product is represented by D%.
