* I was assured that 9% vinegar was the "absolute best" and nothing else should be used. If you use the typical American 5% white vinegar, let me know if it works and what your overall results are.
UPDATE 8/9/11: After consulting Ashley English's informative book Canning and Preserving, I realize how important it is to know food acidity for safe canning. High acid and low acid foods are processed differently. I see why using 9% vinegar is needed in this recipe as the mix of these vegetables does not hit the safety threshold of a pH of 4.6 without it. If you do use a lower percentage vinegar, I would skip the sterilization and store the salad in the fridge. Refer to her book for more great tips, even if you are a beginner.
** Do not cook too long or the vegetables will lose their crunch. Vegetables should remain brightly colored, the herbs just starting to dull in color. If you overcook, all is not lost. Your salad will not be crunchy but still taste great.
*** Why? Stray vegetables bits on the mouth of the jar could prevent a proper seal when sterilizing.
**** I had a problem with "jar migration" while sterilizing. As the water boiled, the jars would migrate in the pot to one side, so I had to be vigilant about scooting them back to equidistant positions. All this to fuss with while Grubly McGrub was screeching and throwing nylon spoons at me and the cat.
***** I learned from my mother than turning the jars upside down would help prevent a large airspace from forming between jam (or other viscous food) and lid in our numerous jam-making summers in Maine. However, if not sealed properly when upside down, there can be leakage of your canned food, therefore breaking the lid seal. Ruslana's mother did this "jars upside down" step but I wouldn't recommend it as this is a juicy product and seepage is likely. You don't want that seal to break after all of your hard work.