Not necessarily.

Synthetic vinegar is commonly known as vinegar essence. Its main component is acetic acid (acetic acid), which is diluted with edible glacial acetic acid. Acetic acid has a strong sour smell because it contains a high concentration of acetic acid, so it should be diluted when used; generally, the acetic acid content cannot exceed 3-4. Vinegar essence does not contain the nutrients found in vinegar, so it is not prone to mold and deterioration. However, it also lacks the fragrance and nutritional effects of vinegar. Therefore, unless there is a special need, it is better to eat vinegar. It should be reminded that glacial acetic acid is corrosive to a certain extent. If it accidentally touches your skin or clothing, please rinse it in time.