Does white wine vinegar in ketchup ferment into alcohol?

No, white wine vinegar in ketchup does not ferment into alcohol. Here's why:

* Vinegar is already fermented: White wine vinegar is created through the fermentation of white wine. This process converts the alcohol in wine into acetic acid, the main component of vinegar.

* Ketchup is acidic: Ketchup is typically quite acidic due to the presence of vinegar and other acidic ingredients like tomatoes. This acidic environment inhibits the growth of yeast, which is necessary for alcohol fermentation.

* Heat and preservatives: Ketchup is often heated during processing and contains preservatives, which further discourage any potential yeast activity.

Therefore, while vinegar does contain alcohol initially, the fermentation process has already occurred, and the acidic and preserved nature of ketchup prevents any further fermentation from taking place.