After searching different websites I didn't find a clear answer to my doubts:
- noticed that while searching pickling mostly I got results referring to canning - is pickling a type of canning?
- my actual question was whether it is needed to sterilize jars before pickling;
My pickling brine was a 50% water and 50% vinegar with 3% of salt; I boiled the brine and then filled the whole jar with the boiling liquid, then sealing it. After it cooled down to room temperature, I placed it to the fridge.
Most websites seem to blame old recepies where ratio of vinegar was too low; but nevertheless other suggest to boil jars for 45 minutes; in youtube mostly they suggest to just have them clean.
Just want to be safe so wondering if someone with more expertise can advice.