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Original scientific paper

Determination of the microplastic particle release by tea bags during brewing

By
Kornilov Kirill Nikolaevich ,
Kornilov Kirill Nikolaevich
Contact Kornilov Kirill Nikolaevich

Department of Chemistry and Ecotoxicology, Moscow State University of Food Production , Moscow , Russia

Roeva Nataliya Nickolaevna
Roeva Nataliya Nickolaevna

Department of Chemistry and Ecotoxicology, Moscow State University of Food Production , Moscow , Russia

Abstract

The presence of microscopic particles of plastic (MP) in food is currently an urgent problem in the modern food industry and one of the main issues of food safety. However, there are no clear methods for the determination of such particles, nor methods for cleaning food products from them. In the present work, for the first time, the method of Dynamic Laser Light Scattering (DLS) was used to determine the plastic nanoparticles from tea bags when they were boiled in boiling water. It has been established that some of the studied samples of sachets release a huge amount of such nanoparticles into water. Moreover, hundreds of millions of nanoparticles are released per one microscopic particle.

Citation

Authors retain copyright. This work is made freely available online under an open-access model under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC-http://creativecommons.org/licenses/by-nc-nd/4.0/BY-NC-ND 4.0).

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Citations

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4

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Vineet Kumar, Pradeep Verma

(2025)

Unveiling the hidden threat of microplastic in paper cups and tea bags: a critical review of their exacerbation and alarming concern in India

Discover Applied Sciences, 7(6)

10.1007/s42452-025-07121-y

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Farah Noshin Chowdhury, Md Mostafizur Rahman

(2025)

Tea in Health and Disease Prevention

, ()

10.1016/B978-0-443-14158-4.00012-9

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Munir Ahmad, Jahangir Ahmad, Muhammad Usama, Hamed Ahmed Al-Swadi, Mohammed Awad Mousa, Muhammad Imran Rafique, Mohammad I. Al-Wabel, Abdullah S. F. Al-Farraj

(2025)

Microplastic contamination in commercial food and drink products and associated risk of potential human intake in Riyadh, Saudi Arabia

Environmental Monitoring and Assessment, 197(3)

10.1007/s10661-025-13680-9

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Jose L. Domingo

(2025)

Nanoparticles in food: formation during cooking, migration from packaging, and nanoplastics release—food safety implications

Food Additives & Contaminants: Part A, 42(11)

10.1080/19440049.2025.2565014

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