Personal hygiene is all things we do to keep our bodies clean and healthy. Keeping your body clean including not only bathing and washing your hands, but also taking care of your hair and your teeth, keeping your fingernails clean and trimmed, and making sure to put and deodorant and wear clean clothes.

Food storage broadly refers to the different means through which food can be kept for longer periods without the food spoiling. The shelf life of a food is the length of time a food remains safe and fit for human consumption.

Cross-contamination is what happens when bacteria or other microorganisms are unintentionally transferred from one object to another. The most common example is the transfer of bacteria between raw and cooked food. This is thought to be the cause of most foodborne infections.

Cleaning physically removes most germs, dirt, and impurities from objects and surfaces.

Sanitizing reduces the number of germs on objects and surfaces to levels considered safe

Disinfecting kills remaining germs on surfaces. Killing germs can further lower the risk of spreading disease.

Safe steps in food handling, cooking, and storage are essential in preventing foodborne illness. You can't see, smell, or taste harmful bacteria that may cause illness. In every step of food preparation, follow the four guidelines to keep food safe:

• Clean—Wash hands and surfaces often.
• Separate—Don't cross-contaminate.
• Cook—Cook to proper temperatures, checking with a food thermometer.
• Chill—Refrigerate promptly.

It is important to manage allergens effectively in your food business to ensure food is safe for customers with food allergies. This involves including allergen information when menu planning and having good food preparation and hygiene practices in place to avoid cross-contamination in your kitchen.

Traceability is the ability to trace something as it moves through a process. In product development, it refers to the ability to track and trace requirements to artifacts, test runs, and anything else in the product lifecycle.