legal analysis: not counting. Egg yolk pie also contains some alcohol, but this is the norm for making cakes normally. After eating egg yolk pie, people will leave alcohol in their mouths, which is easy to be found out about drunk driving. However, the residual alcohol in the mouth will not enter the blood, and it can be judged whether drunk driving or not through blood test.

Legal basis: Threshold and Test of Alcohol Content in Blood and Exhaled Breath of Vehicle Drivers. A driver whose alcohol content reaches 2-79 mg in 1ml of blood is drunk driving, and more than 8 mg is deemed drunk driving.