Como se dice active yeast in spanish?

The most common translation for "active yeast" in Spanish is levadura activa.

Here are some other options, depending on the context:

* Levadura fresca: This literally translates to "fresh yeast" and is often used for baker's yeast.

* Levadura de panadería: This specifically refers to "baker's yeast".

* Levadura en polvo: This means "powdered yeast" and is commonly used for quick breads.

Ultimately, the best translation depends on the specific context and the type of yeast you are referring to.