Why is "potherb mustard" the favorite winter pickle of old Nanjing people?

As the saying goes, "light snow pickles, heavy snow pickles" today (22nd) is the "light snow" solar term, and Nanjing is not far from winter.

Early in the morning, the author saw in the street that many residents were buying and drying "pickles".

Old Nanjing loves pickles for historical reasons. In the past, traffic was underdeveloped. In winter, there are few vegetables sold on the streets of Nanjing, and the price is also very expensive. So I used to pickle vegetables around Xiaoxue and eat pickles in winter.

Nowadays, urbanites seldom pickle vegetables at home, or have no time, or think pickled food is unhealthy. With the improvement of living standards, many old pickles have gradually withdrawn from our lives, but the taste of winter that belongs to our memory is as salty and warm as ever.