The first eight days of Lunar New Year is known as the Laha Festival, "Lah, take also", meaning that there is a change of the old and the new, Laha Festival for Lahi, is the most important festival of the Lunar New Year in the lunar calendar, the date of Laha month eight, the ancient known as the "Lahi," commonly known as the "Laha Festival". "Lahai Festival". This custom goes back to ancient times, the Xia Dynasty, called the waxing day for "Jia Ping", the Shang Dynasty for "clear sacrifice", the Zhou Dynasty for "big wax"; held in December, it is called the month for the waxing month, called the waxing festival this The day of Lunar New Year's Day. Pre-qin waxing day in the winter solstice after the third day of the eleventh day of the north and south dynasty began to be fixed in the eighth day of the waxing month. Laha Festival is used to worship ancestors and deities, including the god of the door, the god of the household, the god of the house, the god of the stove, the god of the well, praying for a good harvest and good luck of the festival, and then the Eastern Han Dynasty Buddhism was introduced to expand the influence in the local by attaching to the traditional culture of Laha Festival as the day of the Buddha's path to enlightenment. In China, there is the custom of drinking Lapa congee and pickling Lapa garlic on Lapa Day.　　

Origin of the custom of drinking Lapa congee and soaking Lapa garlic: the history of drinking Lapa congee has been more than a thousand years. The earliest began in the Song Dynasty. Every Lahai day, whether the court, government, temples or the people's homes to do Lahai congee. In the Qing Dynasty, the custom of drinking Laha congee was even more prevalent. In the court, the emperor, the empress, the emperor's son and so on to the civil and military ministers, court ladies give Laha congee, and to the various monasteries to distribute rice, fruit and so on for the monks to eat. In the folk, every family should also do Laha congee, worship ancestors; at the same time, the family reunion together to eat, gifts to friends and relatives. All over China, the pattern of Lapa congee, competition, a variety of varieties. One of the most elaborate in Beiping, mixed in the white rice in more items, such as dates, lotus seeds, walnuts, chestnuts, almonds, pine nuts, cinnamon, hazelnuts, grapes, white fruit, horn, green silk, roses, red beans, peanuts ...... total of no less than twenty kinds. After the congee is boiled, it is necessary to honor the gods and ancestors first. After that, it should be presented to friends and relatives, and must be sent out before noon. Finally, it is eaten by the whole family. The leftover Laha congee, kept for a few days after eating there are still left, but a good omen, to take its meaning of "year after year".　　

Cao Yanshan, a nutritionist in the Qing Dynasty, wrote "porridge spectrum", the fitness and nutritional function of Laha congee exhaustive, clear, regulate nutrition, easy to absorb, is a "therapeutic" good, and the stomach, replenish the spleen, nourish the heart, clear the lungs, beneficial to the kidneys, the liver, thirst, eyesight, bowel movements, and tranquilizing the role of the spirit. These have been confirmed by modern medicine. For the elderly, Laha congee is also beneficial food, but should also pay attention to should not drink more. In fact, not only Lahai, plain porridge, the elderly is also very beneficial. The variety of porridge is also quite a lot, can be different from person to person, according to the need to choose, discretionary consumption.