Presenter:Many people will be eating mooncakes and egg yolk pastries during the upcoming Mid-Autumn Festival long weekend. The New Taipei City Fire Department reminds the public that microwaving these pastries could cause them to explode.
The Mid-Autumn Festival is almost here, and people are looking forward to eating mooncakes and egg yolk pastries. Some people microwave pastries because they like eating them hot, but they might not be expecting this to occur.
An explosion is heard after just a few seconds, and it looks like the pastry has exploded, spraying the filling everywhere.
Mr. Lin, Resident:" You think, how can something that is edible explode like that? "
Why do egg yolk pastries explode when microwaved? The New Taipei City Fire Department has a scientific explanation.
Tseng Wei-tung, Officer, Fire Safety Promotion Div., New Taipei City FD:”Egg yolks have a membrane around them, and there is moisture inside the membrane. When the moisture is heated, it vaporizes. The water becomes vapor, and the bulk will expand up by about 1,700 times. During this process, the pressure that is inside the membrane has no way to dissipate, so it just finds a place to explode out. “
If you really want hot egg yolk pastries, there is something else you can do. The fire department says people should first slice the pastry into parts or poke some holes on the top before microwaving it or putting it in the oven.