Examples of Quality Factors

Chemical hazards also pose a concern for winemakers. These can be divided into naturally occurring, intentionally added, and unintentional/ incidental. Examples of naturally occurring chemicals that could pose a risk to human health are biogenic amines (Section 11.3.6), ethyl carbamate (11.3.2), and mycotoxins (Section 4.5.2). Intentionally added chemicals include sulfur dioxide (gas, sulfur wicks, or potassium metabisulfite), tartaric acid, Velcorin (Section 5.2.2), and microbial nutrient formulations (diammonium phosphate or proprietary blends). Finally, uninten-tional/incidental chemicals would include residues of agricultural chemicals that exceed approved levels, cleaners or sanitizers (Chapter 9), and the inadvertent transfer of lubricants from equipment. 

Any potentially harmful extraneous matter not normally found in wines would also be considered to be a physical hazard. Perhaps the most impor- 

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