Food worker hand washing practices: an observation study.

Area of Science:

• Food Safety
• Public Health
• Occupational Health

Background:

• Foodborne illness prevention relies heavily on effective food worker hygiene.
• Understanding current food worker hand washing practices is crucial for targeted interventions.

Purpose of the Study:

• To collect and analyze observational data on food worker hand washing behaviors during food preparation.
• To identify specific work activities associated with hand washing recommendations and assess compliance.

Main Methods:

• Direct observation of 321 food workers during food preparation activities.
• Recording of work activities requiring hand washing and subsequent hand washing behaviors.
• Analysis of hand washing attempt and appropriate hand washing rates based on activity and glove use.

Main Results:

• Food workers performed approximately 8.6 hand washing-indicated activities per hour.
• Appropriate hand washing occurred in only 27% of indicated activities; attempts were made in 32%.
• Hand washing rates were lower when gloves were worn (16-18%) compared to when not worn (30-37%).
• Rates varied significantly by activity, being higher for food preparation and lower for body touching.

Conclusions:

• Food worker hand washing practices require significant improvement to reduce foodborne illness risk.
• Glove use may inadvertently decrease the frequency of essential hand washing.
• Restaurant operational adjustments, such as workflow reorganization, could minimize necessary hand washing events.