The technological process of making pestil is prolonged. Only whole, clean, completely ripe, large and pulpy plums are selected and are placed into big copper trays, with a capacity of 200-300 kg, called "pestildjiski" (meaning used for making damson cheese). The mixture, boiled and rubbed through a special sieve, called ''darmon", is spread evenly over beech boards. The dense plum mash layer, about 7-8 mm thick, must be left in strong sunlight in the yard. It takes 2-3 days until it dries completely, then new mash is cooked, which is spread over the first layer. The process is repeated 7-8 times until the desired thickness of the pestil is achieved. When fully dried, the pestil is removed using a spatula. In order to ease the unsticking and to achieve a more intense sweetness a few fistfuls of wild plums should be added during the cooking of the first mess.
The ready pestil is rolled-up and stored in cool airy rooms. It's ready to be consumed about Christmas.
Old inhabitants of Gabrovo recall that once they used to cook 20 tons of plums, obtaining 7 tons of pestil. Being fully dried and stored in suitable conditions, the durability of the pestil reached 10 years.