No, other raw materials are needed.

Each family's formula is different, but it is not just a raw material of quicklime.

Method 1 of making lead-free preserved eggs:

Raw materials:

Duck eggs (eggs and quail eggs can also be used) 100, salt 3 liang, quicklime 3 liang, soda 3 liang, a little black tea, plant ash 7 portions, appropriate amount of rice husk (or sorghum husk and grass ash instead), and appropriate amount of water.

Practice:

Stir-fry the salt in the pot, and take it out and grind it when the explosion stops.

Sprinkle the massive lime, break it into powder and sieve it for later use.

Boil water, black tea and salt in a pot, then pour them into a jar with quicklime, soda ash and plant ash, stir them evenly to make them paste, and then wrap eggs with them. It should be noted that gloves must be worn during operation to prevent strong alkali from damaging the skin.

The wrapped eggs are rolled back and forth on the rice husk, and put into another jar after being covered with rice husk.

After the cylinder is full, it is sealed with yellow mud, salt and water.

Tip:

Generally, it takes 25 days in spring and autumn, 20 days in summer and 30 days in winter to become preserved eggs. This method is simple and easy to use, no matter how many eggs are used, and it is very suitable for families.

Raw materials: raw eggs or duck eggs, salt, tea and its alkaline substances (such as lime powder, grass ash, dilute hydrochloric acid, sodium hydroxide solution, etc.).

Practice 2:

1. Wash the duck eggs bought from the sales market, prepare a vessel in advance, preferably a porcelain jar. First, put the prepared ammonium bicarbonate and edible salt into the vessel, pour them into the boiled water, and then put the quicklime powder and firewood ash into it after they are fully dissolved. When all the quicklime powder is melted, the ash is prepared.

2. Spread the ash prepared in the first step evenly on the shell of duck eggs, then put it in a vessel, put it in a shady and naturally ventilated area for about two months, and the preserved eggs will be preserved.