Tariş Grape Union is obtained by coating the best quality seedless raisins from the producer partners through the experts of 14 cooperatives in the Aegean Region. The product is subjected to a second washing process, which is not applied in other factories in the sector, by removing the foreign materials in it, with the sieve machine used in the enterprises and the laser device in very few enterprises. Samples from the batches produced for the final checks are sent to the R&D Department and all microbiological, physical and chemical analyzes are performed. Since our raw material is laid and dried with great care and our raw material quality is good, the process of yellowing is carried out in the sulfurization process without reaching the maximum rate of 2000 ppm. All raw materials and packaging materials used in grape production are subjected to analysis both within the factory and within the R&D Directorate, and they are never taken into production without approval.