A food worker wears nail polish on her finger nails. She is starting her shift and will be preparing sandwiches. What would she do to prevent herself from contaminating the sandwiches?

In a food preparation environment, hygiene is of utmost importance to prevent contamination. Here is how the food worker can prevent contamination while working with sandwiches:

1. Remove Nail Polish: The food worker should consider removing the nail polish before starting her shift. Nail polish can chip off and potentially fall into the food, leading to contamination.

2. Use Gloves: If nail polish cannot be removed, wearing disposable gloves is essential. This acts as a barrier between potentially harmful substances (from the nail polish) and the food being prepared.

3. Maintain Cleanliness: The worker should ensure her hands are thoroughly washed and sanitized before starting food preparation, as this reduces the risk of transferring bacteria or contaminants.

4. Check for Chips: If she chooses to keep the nail polish, she should regularly check for any chips. If her nails begin to chip, she should either remove the polish or replace the gloves to ensure no particles get into the food.

5. Practice Good Hygiene: The worker should adhere to overall food safety practices including proper handwashing techniques and avoiding touching her face or hair while preparing food.

By following these steps, the food worker can significantly reduce the risk of contaminating the sandwiches with nail polish or any other potential harmful substances.