Vinegar-based products are those that primarily use vinegar as a key ingredient. Vinegar is a sour liquid made through the fermentation of ethanol, which can come from various sources like grapes, apples, or grains. It is commonly used in cooking, food preservation, and as a cleaning agent due to its acidity and antibacterial properties. In culinary applications, vinegar-based dressings and marinades enhance flavors in salads and meats. Additionally, vinegar is a popular ingredient in pickling, where it helps preserve vegetables and fruits. Its versatility makes it a staple in many kitchens and households around the world.