When is the sacrificial furnace usually ready?

When to offer sacrifices to the kitchen:

The 24th of the twelfth lunar month. Sacrificing to the Kitchen God has a history of thousands of years in China, and the belief in the Kitchen God is a reflection of China people's dream of "adequate food and clothing". Traditionally, the day of offering sacrifices to stoves is the 24th of the twelfth lunar month. In most parts of the south, the ancient tradition of celebrating the 24th of the twelfth lunar month is still maintained. Since the middle and late Qing Dynasty, the emperor's family held a ceremony to worship heaven on the 23rd of the twelfth lunar month. In order to "save money", they also pay homage to the kitchen god, so most northern regions celebrate the off-year holiday on the 23rd of the twelfth lunar month.