The spelling of the word "kahm" may be confusing to some people due to the unique placement of the silent 'h'. However, the IPA phonetic transcription makes it easier to understand. The word is pronounced as /kɑm/ which means the 'h' is not pronounced at all, and the 'a' is pronounced as 'ah'. Therefore, the correct spelling is 'kahm' and not 'cam' or 'camh'. This simple explanation helps to clear up any confusion about the correct way to spell and pronounce this word.
Kahm, also known as kahm yeast or yeast sediment, is a term used to describe a type of harmless fungal growth that can occur on the surface of fermenting liquids such as kombucha, vinegar, or other cultured foods. It is typically seen as a thin, white to cream-colored layer similar to a thin film or scum that forms on the top of the liquid.
This type of yeast growth, scientifically referred to as "hanseniaspora uvarum," is a natural part of the fermentation process and is not harmful or toxic to consume. Kahm yeast can develop when the fermenting liquid is exposed to air and when conditions such as temperature or pH are not optimal. It is often associated with batch variations or fluctuations in the fermentation environment.
Although kahm yeast may alter the flavor, aroma, or appearance of the fermented liquid, it is generally considered safe to consume when the ferment is otherwise healthy and does not exhibit signs of spoilage or contamination. Care should be taken, however, to ensure that the fermenting vessel and utensils are properly sanitized, and the liquid should be closely monitored for any signs of mold, off-putting odors, or other abnormal changes.
If kahm yeast is present, it can be skimmed off before consuming the liquid or stirred back into the ferment. Some individuals prefer to discard the layer to prevent potential changes in taste or texture. Ultimately, the decision to consume or discard a ferment with kahm yeast is a matter of personal preference.
The word "kahm" originated from Korean, specifically from the Korean word "감" (pronounced "gahm"). The term refers to a type of fermentation that occurs on the surface of certain foods, typically in the form of a whitish film or mold.