How much vinegar is used to make fresh horseradish?

The amount of vinegar used to make fresh horseradish can vary based on personal preference and the intended flavor intensity. Typically, around 1/4 to 1/2 cup of vinegar is added to 1 cup of grated fresh horseradish root. It's important to add the vinegar gradually and taste as you mix, allowing you to adjust the acidity to your liking.