Tea quality comparative commercial assessment produced in Yakutia

The paper reflects the study results on assessing the quality of green tea produced by the manufacturer Sahachai, compliance with their regulatory documentation. To assess the quality of tea, organoleptic and physico-chemical, chemical-toxicological and microbiological methods were used. We examined samples of tea Dalbar Khotun, Ivan-chai, Yakutia for safety in terms of the maximum allowable content of toxins, radionuclides, microorganisms in tea and physical and chemical studies. The marking of the presented samples of tea complies with the requirements of GOST. The organoleptic indicators of all samples of the manufacturer Sakhachay met the requirements of regulatory and technical documentation. According to the results of the tasting analysis, tea sample No. 2 Ivan-chai has the best taste qualities. Of the organoleptic indicators in sample No. 3 Yakutia a defect such as "tea greens" was found, the cause of which is insufficient fermentation. Based on the results of physical and chemical studies, it was found that all the samples presented correspond to the normative and technical documentation in terms of indicators. Based on the results of chemical and toxicological studies of lead and cadmium, all samples of Sakhachai samples are within the permissible concentration. According to the results of microbiological studies, all samples of black fermented and semi-fermented green leaf tea from the leaves of fireweed angustifolia (Ivan-chai) of the Sakhachai company comply with the requirements of regulatory and technical documentation.