Answer:
A substitute for white vinegar in making pickles is to use apple cider vinegar or malt vinegar. Lemon juice with twice the amount of vinegar can also be used.
Explanation:
While searching for a substitute of vinegar in making cucumber pickles, it is important to check the acidity of the product. At least 5% acidity is needed in the selected malt or apple cider vinegar or lemon juice. Both malt and apple cider vinegar may discolor cucumber if the acidity level is too high.