Answer

For upwas, water is traditionally boiled until it comes to a proper boil, and then it is used within the allowed time according to your Jain tradition.

A common Jain practice is:

• Boiled water during the day: use within the same day, before sunset.
• Boiled water at night: many follow the rule of using it only for a limited period, often until the next sunrise or as guided by their Guru.

Explanation

In Jain Dharma, water is boiled to reduce harm to tiny living beings present in water. For upwas, one should drink only properly boiled and cooled water, and only during the permitted time.

The exact rule can vary by tradition, family practice, and Guru’s guidance. Some follow stricter rules regarding how many hours boiled water remains acceptable.

Takeaway

Boil the water properly, let it cool naturally, and use it only within the time limit followed in your Jain tradition. For exact upwas rules, it is best to follow your Guru or family’s established practice.