This bubbling up of surface happens to every microwave I have owned. What am I doing wrong.

It sounds like you’re noticing food or liquid bubbling over in your microwave. This is a very common issue and usually happens due to how the food is heated, the container, or stirring frequency. Here’s a detailed explanation and solutions:

Why Bubbling Happens

Rapid Steam Build-Up

Microwaves heat liquids and semi-liquids unevenly.

Hot spots form, causing steam to build and push the liquid up, leading to bubbling or even overflowing.

High Power Settings

Heating on full power for too long causes liquids to boil violently instead of gently.

Type of Container