Household beer machine

The household beer machine comprises a shell, an inner container, a refrigerating system, an evaporating pipe, a beverage pipe, a liquid injection opening and a faucet, and the inner container and the refrigerating system are installed in the shell; the evaporation pipe is connected with the refrigerating system, and a refrigerant is arranged in the evaporation pipe; the other end of the beverage pipe is connected with the faucet; the liquid injection opening and the faucet are both installed on the shell, the evaporation pipe and the beverage pipe are both arranged in the inner container, and cold storage liquid is arranged in the inner container. A temperature sensor is arranged in the inner container. The invention aims to provide the household beer machine which detects the cooling capacity of the cold storage liquid through the temperature sensor, is not influenced by the change of the electric conductivity of a water body, and can continuously keep higher detection precision under long-time use compared