Tag Archives: temperature

Carla Zarazir, Lebanese University
FST Soapbox

Coronavirus and Food Security

By Carla Zarazir
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Carla Zarazir, Lebanese University

The novel coronavirus (COVID-19) has been quickly spreading across the globe, which triggered most affected countries to officially declare a state of public health emergency. The World Health Organization (WHO) has labeled this rather fast outbreak as pandemic. Food companies were urged to apply proper hygiene practices such as regular handwashing and surface cleaning to keep the risk of contagion at its lowest level.1 At the moment, there are many ongoing clinical trials evaluating potential treatments for COVID-19 but no specific vaccine or medicine have been publicly made available, as of this writing.

COVID-19 belongs to a family of viruses that cause respiratory issues and can be passed on directly through contact with an infected person’s body fluids (i.e, cough or sneeze discharge) and indirectly, through contact with contaminated surfaces.2 But can the virus be transmitted through edible goods?

Coronavirus Transmission through Food
According to the CDC, there is no current indication to support the transmission of COVID-19 through food since, in general, it needs a living host on which to grow. However, sharing food and beverages, especially in public places, is discouraged. Moreover, good food safety practices are highly recommended, including refrigerating, keeping raw and cooked goods separated and heating food at suitable temperature (around 75 ̊ C).3

If the consumed food is hypothetically contaminated with the virus, the stomach acid (due to its acidic nature) will immediately inactivate it. In addition, COVID-19 cannot affect the body internally via the intestines. One rare exception to the previous statement occurs when the virus gets in contact with a specific type of respiratory cells.

According to food safety experts, foodborne illnesses are generally caused by bacterial cells that have the ability to grow in food and multiply rapidly within a short amount of time. On the other hand, viruses are dormant particles floating around living cells; only when they successfully breaks into the aforementioned cells, the multiplication process can take place.1,3

General Food Safety Advice for Food Businesses

Food manufacturers must follow good hygiene and safety practices to help ensure the consistent quality and safety of their products:4,5,6

  • Purchase raw material from reputable sources
  • Cook food thoroughly and maintain safe holding temperatures
  • Clean and sanitize surfaces (such as cooking boards, refrigerators handles, etc.) and equipment
  • Properly train staff in taking extreme hygiene measures
  • Employees showing signs of infectious illness must not attend work
  • Implement appropriate risk management strategies (e.g,. encourage social distancing and endorse online meetings when applicable)
  • Number of staff in a kitchen or food preparation area should be kept to a bare minimum
  • Space out workstations and food preparation areas, when possible

References

  1. World Health Organization. (2020). Coronavirus disease: advice for the public.
  2. Food Standards Australia & New Zealand. (2020). Novel Coronavirus and Food Safety.
  3. CDC. 2020. Food Safety and Coronavirus Disease 2019 (COVID-19).
  4. Harvard Health Publishing, Harvard Medical School. (2020). Coronavirus Resource Center.
  5. European Food Safety Authority (EFSA). 2020. Coronavirus: no evidence that food is a source or transmission route.
  6. USDA.(2020). Coronavirus Disease (COVID-19).

The Importance Of Cleanrooms in the Food Industry

By Steve Gonzalez
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The health and well being of millions depends on manufacturers’ and packagers’ ability to maintain a safe and sterile environment during production. This is why professionals in this sector are held to much stricter standards than other industries. With such high expectations from consumers and regulatory bodies, a growing number of food companies are opting the use cleanrooms.

Cleanrooms are sealed off from the rest of a laboratory or production facility. Through stringent ventilation and filtering systems, they protect against contaminants that might be found in an unrestricted environment. Mold, mildew, dust and bacteria are sifted from the air before they can enter the space.

Personnel who work in a cleanroom are required to adhere to rigorous precautions, including clean suits and masks. These rooms also closely monitor temperature and humidity to ensure the optimal climate.

Cleanrooms can be found in numerous applications throughout the food industry. Specifically, they are used in meat and dairy facilities, as well as in the processing of foods that need to be gluten and lactose free. By creating the cleanest possible environment for production, companies can offer their customers peace of mind. Not only can they keep their products free from contamination, but they can extend shelf life and increase efficiency.

If you want to learn more about cleanrooms and their classifications, take a look at the accompanying infographic. It details the essential requirements and standards for facilities in the food industry and beyond.

Cleanroom requirements, food safety
Infographic courtesy of Technical Safety Services
Megan Nichols

Important Restaurant Food Storage Safety Tips You Need to Know

By Megan Ray Nichols
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Megan Nichols

Safety is a priority when handling food. Don’t think of it as a chore to appease the health inspector. Food storage and safe handling can prevent your customers from getting sick. Whether you’re a veteran of the industry or just starting out, reviewing these tips can improve your restaurant’s operations and keep your guests safe.

Remember FIFO

FIFO, first in first out, should become your mantra when using stock. This rule governs stock rotation and use. When you receive a delivery, place the new stock behind the existing stock. Doing so reduces waste as you won’t have goods stored past their expiration dates. Use the stock at the front to always make use of the oldest products first.

Wood pallets, food storage
When receiving a new delivery, remember: FIFO. Image courtesy of Pixabay

Train your employees to track the expiration dates on all the goods in storage. A sheet listing the expiration of new and existing products easily shows this information. Stress the importance of using goods before their best by date for optimal safety and quality.

Keep Storage Dry and Dark

Dark, dry storage areas maximize the storage time of foods. Whether it’s dry goods in pantry storage or cold products in a refrigerator or freezer, the ideal conditions are out of direct sunlight. This helps control the temperature and prevent the food from degrading. Products with vitamins A, D, K and E, which are fat-soluble, can also break down in sunlight.
The humidity levels should stay lower than 15% to help preserve product quality. Moisture-proof packaging and air conditioning can maintain the appropriate levels. Keep a hygrometer in your storage areas to verify the humidity levels remain consistent. To protect food from contaminants and vermin, place shelves so food is at least six inches from the floor and walls, and one foot from the ceiling.

Storage Temperatures Are Key

Depending on what you store, temperatures may range from freezing to 140° F. Maintain dry storage temperatures between 50° and 70° F. Freezers must keep food frozen solid with an internal temperature of 0° F at most. Keep temperatures between 32° and 40° F in refrigeration units to prevent bacterial growth. Hot storage must keep food at a minimum of 140° F.

Temperature
Holding to temperature ranges are critical to prevent food poisoning. Photo courtesy Pixnio

These temperature ranges are critical to prevent food poisoning. Track temperatures and discard any food stored at the wrong temperature. Consider installing alarms tied to the thermometers in your storage units to alert your employees of critical temperature changes that could affect food safety and quality.

Store Based on Cooking Temperature

Did you know the temperature you must cook foods will determine which shelf you store them on in the refrigerator? The lower the finished temperature of cooked food, the higher a shelf you store it on. Ready-to-eat and cooked foods need to stay on the top shelf, wrapped tightly to prevent cross-contamination. Any ready-to-eat meats and cheeses go on the shelf below. Again, keep them tightly covered or wrapped.

Raw foods go on the bottom three shelves. The third shelf from the top should hold foods cooked to 145° F. including raw fish and shellfish. Below that shelf, keep raw pork, beef and veal. These include cuts and steaks but not ground meat. These have a cooked temperature of 155° F. The bottom shelf holds ground meat and whole eggs. These must cook to an internal temperature of 165° F.

Foods that need cooking thoroughly must stay in enclosed pans or on non-absorbent shelving. Use airtight containers where possible to store food. This protects the food from drying out, preserving its quality. Additionally, the food will stay free of contamination from other foods in the storage unit. This is especially important for refrigerated foods, which may still harbor liquids that can get onto other foods.

Label and Check Foods in Storage

While you should label unopened foods, it’s even more important to label opened foods. Use all foods before the type expires. For instance, summer sausage stays fresh for only three weeks after opening in the refrigerator, but it stays good up to three months unopened. If in doubt, throw the food out. It’s better to stay safe than sorry.

Prevent Cross Contamination During Cooking

During cooking, you can prevent contamination of fresh foods by raw foods through regular hygiene practices. All employees should thoroughly wash their hands with 110°-F water and soap. Despite hand washing, gloves must be worn at all times to protect consumers further.

Cutting boards
Never use the same cutting boards for raw meats and ready-to-eat foods. Photo courtesy PicJumbo.

When cooking, never use the same cutting boards for raw meats and ready-to-eat foods. Juice from undercooked meat could contaminate salad ingredients, sickening those who eat the salad. Also, use a cooking thermometer and always cook foods to the appropriate internal temperature based on the type of food. Reheat previously cooked dishes to an internal temperature of 165° F to stop bacteria growth.

When storing foods, place them in airtight containers that you can easily identify. This prevents things such as milk and cream from accidentally getting replaced with each other. It also ensures every item gets stored correctly. Correct labels on containers also help with preventing mix-ups.

Food Safety Starts With You

Food safety is critical to your restaurant’s operations. Improper storage can shut down your business from a food poisoning outbreak or a bad inspection from the local health inspector. Don’t let these happen to you. Follow these guidelines to ensure the food you store and serve remains safe and high-quality.