Food workers are responsible for keeping every item they serve safe to eat, and that starts with a handful of core practices: washing hands correctly, controlling temperatures, preventing cross-contamination, staying home when sick, and keeping workspaces clean and sanitized. Whether you’re preparing for a food handler exam or just starting a job in a kitchen, these are the specific standards you need to follow.
Wash Your Hands the Right Way
Handwashing is the single most important thing a food worker can do to prevent foodborne illness. The standard is straightforward: scrub with warm water and soap for at least 20 seconds. That means lathering between your fingers, under your nails, and up to your wrists before rinsing and drying with a clean paper towel or air dryer.
You need to wash your hands at all of the following times:
- Before and after handling food
- After using the restroom
- After touching your face, hair, or body
- After sneezing, coughing, or blowing your nose
- After handling raw meat, poultry, or seafood
- After taking out garbage or handling dirty dishes
- After touching cleaning chemicals
- After eating, drinking, or smoking on break
Gloves are not a substitute for handwashing. You should wash your hands before putting gloves on and change gloves whenever they become contaminated, torn, or punctured. You also need fresh gloves any time you switch between tasks, like moving from handling raw chicken to assembling a salad.
Keep Food Out of the Danger Zone
Bacteria multiply fastest between 40°F and 140°F, a range known as the danger zone. In the right conditions, bacterial populations can double in as little as 20 minutes. The basic rule: never leave perishable food in this temperature range for more than 2 hours. On hot days when the air temperature is above 90°F, that window shrinks to just 1 hour.
Cold foods need to stay at 40°F or below. Hot foods need to stay at 140°F or above. Use a calibrated food thermometer to verify temperatures rather than guessing. If food has been sitting in the danger zone beyond the time limit, discard it.
Cook to Safe Internal Temperatures
Different proteins require different internal temperatures to destroy harmful bacteria. These are the minimums you need to hit, measured with a food thermometer inserted into the thickest part of the food:
- Poultry (chicken, turkey, duck, ground poultry, stuffing): 165°F
- Ground meats (beef, pork, veal, lamb): 160°F
- Beef, pork, veal, and lamb steaks, chops, and roasts: 145°F, with a 3-minute rest before cutting or serving
- Fish and shellfish: 145°F
- Ham (fresh or smoked, uncooked): 145°F, with a 3-minute rest
The rest time matters. During those 3 minutes after removing meat from the heat source, the internal temperature stays constant or continues to rise, killing remaining bacteria. Don’t skip it.
Cool and Reheat Food Properly
Cooling hot food is one of the riskiest steps in food preparation because food passes through the danger zone on its way down. The standard is a two-stage process. First, bring the food from 135°F down to 70°F within 2 hours. Then continue cooling it from 70°F to 41°F or below, with the total cooling time not exceeding 6 hours.
If the food hasn’t reached 70°F within the first 2 hours, you have one chance to save it: reheat it back to 165°F and start the cooling process over. If the total 6-hour window passes and the food still hasn’t reached 41°F, it must be thrown away. To speed cooling, use shallow pans, ice baths, or add ice as an ingredient.
Store Food in the Right Order
How you organize a walk-in cooler or reach-in refrigerator directly affects cross-contamination risk. The principle is simple: store items based on the temperature they need to reach during cooking, with the highest cooking temperatures on the bottom shelves. This prevents juices from raw proteins dripping onto foods that won’t be cooked as long (or at all).
From top to bottom, the correct shelf order is:
- Top shelf: Ready-to-eat foods and washed produce (items that won’t be cooked)
- Second shelf: Foods that will be hot-held at 135°F
- Third shelf: Whole seafood, whole cuts of beef, pork, veal, lamb, and shell eggs (cooked to 145°F)
- Fourth shelf: Ground meats, injected meats, and marinated meats (cooked to 155°F)
- Bottom shelf: All poultry and stuffing (cooked to 165°F)
This system ensures that if raw chicken juice drips, it lands on nothing below it that cooks at a lower temperature.
Prevent Cross-Contamination
Cross-contamination happens when bacteria transfer from one surface or food to another. The most common source is raw animal proteins touching ready-to-eat foods, either directly or through shared cutting boards, utensils, or hands.
Use separate cutting boards and knives for raw meats and for produce or cooked foods. Many commercial kitchens use color-coded boards to make this easy to track. Wash, rinse, and sanitize any surface or utensil that has contacted raw protein before using it for anything else. The same applies to your hands and gloves: any contact with raw meat means you need to wash up and re-glove before touching other food.
Follow Personal Hygiene Standards
Food workers need to maintain a level of personal hygiene that goes beyond everyday habits. Hair restraints, such as hairnets, hats, or caps, are required to prevent hair from falling into food. If you have a beard, a beard net may be required by your employer. Long hair should be tied back securely with no loose pieces hanging out.
Jewelry is a well-known contamination risk. Rings, bracelets, watches, and dangling necklaces can harbor bacteria and are difficult to sanitize. Most food safety programs allow only a plain wedding band, if anything. Remove all other jewelry before starting your shift. Keep fingernails short, clean, and free of nail polish, which can chip into food.
Stay Home When You’re Sick
Certain illnesses spread easily through food, and working while symptomatic puts every customer at risk. If you’re experiencing vomiting, diarrhea, or jaundice (yellowing of the skin or eyes), you should not be in the kitchen. These are the symptoms that typically require a food worker to be excluded from the establishment entirely, not just reassigned to non-food tasks.
Several specific pathogens are particularly dangerous when transmitted through food: Salmonella (including Typhoid), Shigella, E. coli (the hemorrhagic type), Hepatitis A, and Norovirus. These are sometimes called the “Big 5” in food safety training. If you’re diagnosed with any of these, your manager and local health department need to know. Even after symptoms resolve, some of these infections require a confirmed negative test before you can return to food handling.
Sore throats with fever, open wounds, and infected cuts also need to be reported to your manager. Depending on the situation, you may be restricted to tasks that don’t involve food contact, or you may need to stay home.
Clean and Sanitize Correctly
Cleaning and sanitizing are two separate steps, and both are required. Cleaning removes visible food debris and grease. Sanitizing kills the bacteria that remain on a surface after cleaning. Wiping down a counter with a soapy rag does not sanitize it.
For dishes and equipment washed by hand, the standard process uses a three-compartment sink and involves five steps:
- Scrape: Remove leftover food from the item
- Wash: Clean in the first sink with hot, soapy water
- Rinse: Rinse in the second sink with clean water to remove soap
- Sanitize: Submerge in the third sink with an approved sanitizer solution
- Air dry: Place on a clean rack and let items dry completely on their own
Never towel-dry items after sanitizing. A towel can reintroduce bacteria. Air drying is the final and required step.
Handle Chemicals Safely
Cleaning products, sanitizers, and degreasers are part of every food service operation, but they become a hazard the moment they come in contact with food. All chemicals must be stored separately from food, utensils, and food preparation areas. That means a dedicated shelf or cabinet, ideally below and away from anything edible.
Every chemical container needs a label. If you transfer a product from its original bottle into a spray bottle or bucket for daily use, that secondary container must also be labeled with the product name and hazard information. The only exception is a container you fill and use immediately without setting it down or walking away. Jewelry and metal items can also react with certain chemicals, which is another reason to keep them off your hands during work.