How to say: "the water is boiling" in Taiwanese Mandarin?

Question

When using an electric water cooker/boiler, how to translate the following:

The water is boiling.

What would be arguably the most common way in Mandarin to say this in Taiwan?

Answer 1

"The water is boiling."

We say 水開了 in Taiwan. Nothing else.

我們都說「水開了」，好像沒有人用其他講法。

Answer 2

“水開了/沸了/滾了” are all used in oral. Even “水好了” goes well (好了=燒好了, and you can use it in preparing for bath, either).

Answer 3

Many ways to describe water boiling, depends on the situation, say temperature or some flow within, of water.

• 水開了：water has reached at 100°C
• 水滾了: water has reached at 100°C
• 水在沸騰: water is going up to 100°C

The first one is the most common way to describe the water is boiled already.