Microanalytical Quality of Imported Green Coffee Beans

Area of Science:

• Food Science
• Microbiology
• Public Health

Background:

• Assessing the sanitary quality of imported food products is crucial for consumer safety.
• Green coffee beans can harbor defects like insect damage, mold, and contaminants.
• Previous data on the prevalence of these defects in imported green coffee beans is limited.

Purpose of the Study:

• To determine the sanitary quality of green coffee beans imported into the United States.
• To quantify the prevalence and levels of insect damage, mold, and mammalian excreta.
• To identify potential geographical variations in coffee bean quality.

Main Methods:

• A 3-year national survey of green coffee bean imports.
• Analysis using the Food and Drug Administration's Macroanalytical Procedures Manual.
• Testing for mammalian excreta, insect damage, and mold contamination.

Main Results:

• Insect damage was the most frequent defect, found in 70.6% of samples (0-31.0% per sample).
• Mold was present in 23.5% of samples (0-31.0% per sample).
• Mammalian excreta occurred in 9.3% of samples (0-50.63 mg/lb), with higher levels in African and Asian beans.

Conclusions:

• Imported green coffee beans frequently exhibit sanitary defects, primarily insect damage.
• Geographical origin influences the level of contamination, with African and Asian beans showing higher analyte levels.
• Findings highlight the need for stringent quality control measures in green coffee bean imports to ensure food safety.