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Last updated on March 7, 2025.

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Complaint Casebook Foreign matter in honey

1.Overview

I found a black one at the bottom of the honey bottle given by an acquaintance.

2.Test Results

Overview: A large black mass of 1cm x 3cm was found on the bottom of the bottle. When the honey inside was opened, sugar precipitation was observed at the bottom, and there was a black lump in it.

Photographs of foreign matter (black mass) in honey
Foreign matter in honey


Stereo microscope: The sugar and black mass precipitated at the bottom of the bottle were melted with hot water, and when filtered, fine particles were observed on the filter.

Scanning electron microscope: Fine particles on the filter are pollen and other particles (sand or nest fragments).

Photos of fine particles in scanning electron microscopes
Photo of a scanning electron microscope


3.Conclusion

It is thought that pollen and other fine particles have settled with sugar and solidified.

Published on March 8, 2007

Inquiries to this page

RIKEN, Medical Care Bureau Institute of Hygiene

Phone: 045-370-9451

Phone: 045-370-9451

Fax: 045-370-8462

E-Mail address ir-eiken@city.yokohama.lg.jp

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Page ID: 381-047-032

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