Since it became famous, the number of buyers of blind cakes has increased day by day, and many people regard it as a good gift. When it was first made, the cake was bigger than copper coins and had no pig heart. 1875, in order to keep improving, pig heart was added to prepare. After the establishment of the No.1, employees from 12 to 13 have been employed for production over the years, but there are only seven or eight actual production personnel. Daily output 10000 kg, peak period 1933 to 1936, daily overtime output reaches 15- 16 hours, and daily output is more than 20000 kg. Most of them are sold to Dongguan and Shilong, and tourists from the province and Hong Kong and Macao who come to Foshan buy more blind cakes to feed their relatives and friends. Before liberation, Hehemark had been retailing in the old shop of Heyuan Society. There is no wholesale or agent, and the export volume is very small. War of Resistance against Japanese Aggression, the year before last, exported only 4,800 Jin, which was exported by foreign ships with iron cans hardcover (no meat heart). The Japanese invaders invaded south, Foshan fell, looting and killing everywhere, people were in dire straits, the sales of blind cakes plummeted, and most production workers returned to their hometowns to farm. Since then, the form of blind cakes has changed from big to small, from selling one barrel (every ten barrels). The daily output is 300 to 400, and the business is sluggish, sometimes it doesn't start for a few days. After War of Resistance against Japanese Aggression's victory, production recovered slightly, and workers gradually returned to Foshan from the countryside. However, under the reactionary rule of the Kuomintang, production still has not developed greatly. The daily output is only 30,000, which is about10.5 million cakes before the war, and it has not recovered to the pre-war production level.