1, altar body treatment: after buying the pottery jar, open it in a ventilated place for one day; Fill it with cold boiled water the next day and pour some vinegar in (there is no limit to the variety of vinegar); Change the water on the third day and fill it with water and pour vinegar as on the second day; On the fourth day, empty the jar, wash it several times with cold boiled water, and finally wipe it evenly with high-alcohol liquor, and you can use it.

2. Treatment of jar cover and jar rim: The jar cover is soaked in cold boiled water and vinegar, which can be done simultaneously on the third day of treating the jar body, that is, soaking for one day, and the next day, it can be treated according to the method of the fourth day of the jar body; The altar rim is synchronized with the altar body, but the difference is that the altar rim should be soaked in salt water.