Does the "yeast" written on some imported products mean "alcohol" (khamr), making them forbidden to eat?

"We have no knowledge of the true nature of these yeasts (khamā'ir). However, 'khamā'ir' is the plural of 'khamīrah,' and 'khamīrah' is what is added to dough. In this sense, it is not an intoxicant (khamr), so there is no harm in consuming it."