Low-foam active agent for cleaning beverage container and preparation method of low-foam active agent

The invention relates to the technical field of cleaning agents, and particularly discloses a low-foam active agent for cleaning a beverage container and a preparation method of the low-foam active agent. The low-foam active agent for cleaning the beverage container is prepared from the following raw materials in parts by weight: 10 to 20 parts of sodium hydroxide, 15 to 28 parts of alkyl glycoside, 27 to 50 parts of octanol polyoxyethylene ether, 15 to 25 parts of fatty alcohol sulfonate, 5 to 12 parts of stabilizer and 60 to 80 parts of water, the preparation method of the low-foam activator comprises the following steps: S1, adding sodium hydroxide and a stabilizer into water, and stirring until the sodium hydroxide and the stabilizer are completely dissolved to obtain a mixed solution; and S2, adding alkyl glycoside, octanol polyoxyethylene ether and fatty alcohol sulfonate into the mixed solution, and stirring until the components are completely dissolved to obtain the low-foam active agent for cleaning