
brodeln
to bubble
When a liquid is heated strongly and is just about to boil or is simmering quietly, forming bubbles and making sounds.
Die Suppe brodelt auf dem Herd und duftet herrlich.
The soup is bubbling on the stove and smells wonderful.
to bubble / seethe
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to bubble
When a liquid is heated strongly and is just about to boil or is simmering quietly, forming bubbles and making sounds.
Die Suppe brodelt auf dem Herd und duftet herrlich.
The soup is bubbling on the stove and smells wonderful.

to seethe
Figuratively: to be filled with strong, suppressed feelings such as anger, rage, or excitement.
In ihm brodelte die Wut, aber er bemühte sich, ruhig zu bleiben.
Anger was seething inside him, but he tried to stay calm.

to be buzzing
Figuratively: used of a place where there is great unrest, hustle and bustle, or activity.
In der Gerüchteküche der Firma brodelte es gewaltig.
The company's rumor mill was really buzzing.
The basic meaning of 'brodeln' (to bubble) is literal and describes a hot liquid. The other meanings are figurative and use this image for strong feelings or great unrest in a place.
Das Wasser für den Tee brodelt schon im Kessel.
The water for the tea is already bubbling in the kettle.
In the figurative sense, 'brodeln' (to seethe) is often used for strong, negative feelings that you feel inside but do not show. Typical feelings are anger, rage, or jealousy.
Während der Diskussion brodelte es in ihm, aber er sagte nichts.
During the discussion, he was seething inside, but he said nothing.
This meaning describes places or situations full of activity, tension, or rumors. A very common expression is 'die Gerüchteküche brodelt' (the rumor mill is buzzing).
Vor der wichtigen Ankündigung brodelte es in der Firma vor Spekulationen.
Before the important announcement, the company was buzzing with speculation.
to cook / to boil
Both verbs can express intense anger. “Kochen” usually emphasizes very high intensity or an impending outburst, while “brodeln” tends to describe lingering, suppressed anger. Use “kochen” for open anger and “brodeln” when the feelings are still kept inside.

Nach der Beleidigung brodelte in ihm die Wut, aber er blieb ruhig.
After the insult, anger was seething inside him, but he remained calm.
Nach der Beleidigung kochte er vor Wut und begann laut zu schreien.
After the insult, he boiled with rage and began shouting loudly.