We must keep our food clean.
This helps us stay well. It keeps bad germs away. Clean food helps you grow. We can wash our hands too. Do you wash your hands before you eat?
We must keep our food safe.
This keeps bad germs away. Bad germs can make people sick. Some germs come from tiny bugs.
Other things like hair or metal can get in food. This is called contamination. We can stop this by washing hands. We should also keep food cold. Using clean tools helps too. Keeping food safe helps everyone stay well.
We must keep our food safe. Food safety is a set of steps. These steps stop people from getting sick.
Scientists use labs to test food. They look for pathogens. Pathogens are tiny living things like bacteria or viruses. These can cause a food-borne disease outbreak. An outbreak is when many people get sick from one food.
Food can get dirty in many ways. This is called contamination. Physical contamination happens when objects like hair or metal get in food. Chemical contamination happens with things like pesticides. Biological contamination comes from living creatures.
Bacteria are the most common cause of food poisoning. They like warm spots. This is called the danger zone. It is between 5°C and 60°C.
We can follow rules to stay safe. Always wash your hands well. Keep raw foods away from cooked foods. Cook food at the right temperature. Keep cold food in a fridge. The fridge should be 4.4°C or below.
Inspectors also study food to keep us well.
Food safety is a very important science. It is the study of how we handle and store food. This science helps prevent foodborne illness. An illness happens when someone eats bad food. If many people get sick from the same food, it is called an outbreak.
We must keep food safe from the factory to the kitchen. This helps protect everyone from getting sick. Scientists work hard to make sure our meals are healthy.
Food can become dirty in three main ways. This is called contamination. Physical contamination happens when objects like hair or metal fall into food. Chemical contamination happens from things like pesticides or cleaning liquids. Biological contamination is when tiny living things like bacteria or viruses get in.
Bacteria are the most common cause of food poisoning. They grow well in a warm area called the danger zone. This zone is between 5°C and 60°C.
Experts have studied these dangers for a long time. The WHO Foodborne Disease Epidemiology Reference Group led a huge study. Over 60 experts worked on this for ten years. They looked at how foodborne diseases affect the whole world.
In 2010, they found that 31 major hazards caused many deaths. This study is the most complete guide we have. It helps leaders understand how to keep people safe.
There are many important numbers to know about food safety. In the United States, about 5,000 people died from these germs in 1999. The WHO estimated 600 million people got sick in 2010. That same year, about 420,000 people died from foodborne illness.
In April 2018, an E. coli outbreak hit 26 US states. This happened because of lettuce from Yuma, Arizona. At least 14 people in that outbreak had kidney failure.
You can help keep food safe at home. Always wash your hands after touching raw meat. Keep raw foods away from foods that are already cooked. You should also use a fridge that stays at 4.4°C or below. A freezer should be at -17.7°C or lower.
Using clean tools and safe water makes a big difference. These small steps help stop germs from spreading to your family.
Food safety, also called food hygiene, is a scientific discipline. It focuses on the handling, preparation, and storage of food. The main goal is to prevent foodborne illness. An illness occurs when someone eats food containing harmful substances. If two or more people get sick from the same food, it is called a food-borne disease outbreak.
Food safety is vital because food can transmit pathogens. Pathogens are tiny living things that cause disease. These include bacteria, viruses, parasites, and fungus. These germs can cause illness or even death in humans and animals.
Contamination is the process where food becomes corrupted by another substance. This can happen during production, transportation, packaging, storage, sales, or cooking. There are three main types of contamination: physical, chemical, and biological. Physical contamination involves foreign bodies like hair, plant stalks, plastic, or metal. If these objects carry germs, both physical and biological contamination occur. Dangerous objects like glass or wire can cause choking or internal injuries.
To prevent this, cooks should wear hair nets and remove jewelry.
Chemical contamination occurs when food contains natural or artificial chemical substances. Sources include pesticides, herbicides, and veterinary drugs. It can also come from environmental pollution in water, air, or soil. Sometimes, chemicals migrate from food packaging materials into the food itself. These substances can cause gastrointestinal problems or organ damage. They may also lead to neurological problems or increased cancer risks. Using unapproved food additives is another way chemical contamination happens.
Biological contamination is caused by substances from living creatures. This includes humans, rodents, pests, or microorganisms. Pathogens like bacteria, viruses, or parasites can spread through saliva, blood, or fecal matter. Bacterial contamination is the most common cause of food poisoning globally. Bacteria thrive in environments with high starch or protein. They also need water, oxygen, and a neutral pH level. Bacteria grow quickly in the "danger zone," which is between 5°C and 60°C.
A major example of biological contamination happened in 2018. In April and May of that year, an E. coli O157:H7 outbreak affected 26 US states. Investigations suggested the contamination came from the Yuma, Arizona, growing region. This was the largest E. coli flare-up in the US in ten years. One person in California died from the outbreak. At least 14 people developed kidney failure. Common symptoms included diarrhea, abdominal pain, and vomiting.
Experts have worked for decades to understand these global health burdens. The WHO Foodborne Disease Epidemiology Reference Group led a massive study. Over 60 experts worked on this project for ten years. The study is the most comprehensive guide to foodborne diseases. In 2010, the study found that 31 priority hazards caused roughly 420,000 deaths in low- and middle-income countries. These hazards also caused about 33 million disability-adjusted life years.
This research helps governments create better safety policies.
To manage these risks, many countries use food safety inspections. Inspectors analyze food samples to check for contamination levels. They also evaluate how food is handled in farms, factories, and restaurants.
Some jurisdictions use a prescriptive approach. This means they use specific checklists and scoring systems to measure compliance. There are also international standards like ISO 22000. First published in 2005, this standard helps businesses manage food safety through hazard analysis. These systems ensure food is as safe as possible from pathogens.
Individuals can also follow key principles to stay safe at home. The WHO suggests five main rules for food hygiene. First, prevent pathogens from spreading from people or pets. Second, separate raw foods from cooked foods. Third, cook food at the correct temperature to kill pathogens. Fourth, store food at the right temperature. Finally, use safe water and raw materials.
For example, refrigerators should stay at 4.4°C or below. Freezers should be at -17.7°C or below to keep food safe.
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