You didn't seal the jars. The most common method is water bath canning. No matter if the recipe calls for vinegar, it still needs to be sealed. See your canning instructions for more information.
Simply, the mixture didn't get hot enough to make pickles. And simple pickling doesn't destroy all bacteria. So take the time to water seal your jars next time.
To pickle beetroot :- Make a spiced vinegar as follows - 1 quart of vinegar, 1/2 ounce peppercorns, 8 cloves, 1ounce sugar, Bring to the boil for a few minutes, pour over the cooked beetroot in the jars and close lids immediately.
The commonest type of vinegar used for pickling is either distilled white or malt (brown). Use white vinegar if you don't want malt vinegar to darken the colour of the pickled items (hard-boiled eggs, whole or sliced onions, and other vegetables, etc). The vinegar used to pickle beetroot would not matter as the strong dark redness of the beetroot would override a malt vinegar.
Litimus Paper. Or beetroot juice.
I think the colour changes to darkish brown
To pickle a vegetable it is usaually preserved in vinegar. Vinegar is acidic so would naturally affect the colour of the indicator.
Vinegar
1. Clean the dirt from the beet root. 2.Trim the leaves leaving about an inch (this will ensure you do not cause the beet to bleed). 3.Simmer for about 20 mins then remove from the heat. Drain the water and allow to cool. While your waiting for your beetroot to cool bring to the boil enough malt vinegar to cover. A lot of people use spices in the vinegar but a prefer 2 tables spoons of sugar. Simmer until the sugar has dissolved. Allow to cool a little. Slice your beetroot and put into a clean jar. pour over the beetroot. Simple....enjoy on crusty bread with matured cheddar
Vinegar
They used beetroot juice or annaseed for lipstick Tea bags for fake tan Lemon juice for blonde hair dye Vinegar for brown hair dye.
No, vinegar is not toxic, you may be sick if you taste too much at once but it will not harm you, vinegar is used in many foods such as pickled onions, beetroot, cabbage etc, it is in tomato sauce, mayonnaise, brown sauce and many other similar sauces its even dribbled on food such as Fish and Chips to enhance the flavour.
All sorts of food can 'use' or contain vinegar, pickled onions is the obvious along with other pickles such as beetroot, red cabbage and gherkins, many sauces use vinegar such as mayonnaise, thousand island, salad cream (UK), vinaigrette and so on, we sprinkle vinegar on food such as fish and chips, tinned salmon and tuna and vinegar is also used in many recipes.
There are many ways to 'pickle' cucumbers and vegatables. The most common recipes for pickling involve vinegar (distilled or apple cider vinegar) and salt. Both distilled and apple cider vinegar contain acetic acid. So your answer is 'acid.'