The study clarified that the pesticide level in tea brew rather than that in dry tea should be regarded as an effective risk dosage, based on which, the setting rule of the global maximum residue limits (MRLs) on tea would be reconstructed; the key point in the control of pesticide residues and important contaminants was revealed; the in-situ and high-throughput analytical methods for pesticides and contaminants were developed. It helps China to strengthen its discourse power in the fixation of global MRLs of pesticides in tea. It also helps to achieve the scientific and technological progress in the sustainable development of China tea industry.

Pesticide residue difference between dry tea and tea infusion