Besides infusion time, what two other processes can 'sitting time' refer to in onion water preparation?

Answer

Cooling time after boiling and maturation time for vinegar soaking

The term 'sitting time' varies to describe the cooling period needed after boiling, the infusion period for cold extraction, or the maturation period required for vinegar-soaked preparations.

Besides infusion time, what two other processes can 'sitting time' refer to in onion water preparation?
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