After consulting the relevant data of Yunnan Sini brown sugar, it is found that this kind of brown sugar only starts to squeeze sugar when the sugarcane is ripe in large quantities in about 65438+February every year.

The boiling process of four-reverse sugar is very complicated, which requires four cauldrons to operate at the same time. After eight processes, such as boiling, filtering, boiling, stirring and air drying, it takes 5 to 6 hours to change sugarcane juice into golden brown sugar. The smooth progress of each process depends on the manual experience of the sugar cook year after year.