Tag Archives: refrigeration

Emily Newton, Revolutionized Magazine
FST Soapbox

Six Ways Food Manufacturers Can Save Money on Electricity

By Emily Newton
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Emily Newton, Revolutionized Magazine

Energy usage has increased worldwide, especially with everyone isolated due to COVID-19. That translates to higher costs across most sectors. The Energy Information Agency (EIA) expects U.S. electricity consumption to grow by 2.1% this year.

Coupled with the rising adoption of renewable energy and green initiatives, it makes sense to cut down on electricity consumption as much as possible. Commercial operations, food manufacturers included, could stand to benefit from reduced energy usage.

The question isn’t necessarily “why,” but “how.” What can food manufacturers and similar commercial providers do to reduce electricity requirements? What are some ways to minimize consumption and achieve efficient food production processes?

1. Energy Audits

Process and energy audits are a must. How could one hope to improve a system without understanding everything there is to know about it? More specifically, how could a company reduce energy consumption if they don’t know where, when and how it’s being used? That’s why energy and resource audits are crucial to optimization. It doesn’t matter whether they are conducted in-house or by a third party. What’s important is that they are accurate and detailed.

Inspectors will examine heating, refrigeration and cooling systems, facility processes, equipment, infrastructure, and beyond. Everything that uses electricity will be part of the audit, and analysts will be able to discern how much power each component is using. The statistics then inform action, driving a reduction in energy consumption. With this information, company analysts can also create a food manufacturing cost breakdown, which can be used to improve other areas of the business.

It’s easy to draw a line between regular energy audits and improved food safety, too. The ability to continuously monitor facility equipment performance means a lower chance of failure and more consistent quality. Keeping a digital eye on optimal performance means a reduced risk of one machine negatively impacting others if it begins performing suboptimally or erratically.

2. Upgraded Equipment

Energy conservation is as much about improving efficiencies as it is about using less electricity overall. While not always true, as a general rule, newer equipment tends to be much more economical at utilizing electricity.

Over time, technology has improved considerably to use less power, utilize resources more effectively and incorporate new methods for completing various actions, sometimes with significant performance boosts. In other words, new equipment can bring energy consumption down and will also improve productivity and output. Because it’s not cost-effective to replace equipment often, that’s precisely where audit information comes in handy.

The best practice would be to replace equipment before it malfunctions or breaks down, but also after it has declined in performance and efficiency. It would mean constantly analyzing equipment through real-time metrics and statistics.

Better production, more output, and fewer costs lead to greater profit, so it’s worth the investment.

More efficient and modern equipment typically features other upgraded components that impact performance and food safety as well, including updated materials, tighter tolerances, and improved microbial and viral resistance. Next-generation food prep and packaging stations that automate sanitation using ultraviolet (UV) light are examples.

3. Retooled Infrastructure

If the operation is located in an older building, it’s likely that much of the existing infrastructure and equipment is not just dated but also less efficient.

For example, traditional lighting sources use a lot more energy than LED or smart lighting solutions. HVAC systems may be non-existent or extremely outdated. Even facilities that are just a few years old may have obsolete elements.

This stretches far beyond the basics such as lighting to include power and utility components. A well-built and quality transformer setup will save money over time, for example. Replacing aging equipment can save food processing plants cash in the long run.

Investing in a transformer that doesn’t use a liquid cooling agent gives plant owners more options as they can be placed indoors or outdoors. They also have other business benefits, like longer lifecycles, lower fire risks, a more eco-friendly operation, and higher efficiency. A lower risk of fires, smoke intrusion and other destructive events also means greater security and peace of mind for delicate and perishable foods and food components.

Upgrading these components is more cost-effective than moving to a new location or building a whole new facility. It is often these kinds of incremental hardware and operational updates that can offer the best impact.

4. Better Refrigeration and Cooling

In 2019, the EIA reported that the commercial food sector used 154 billion kilowatt-hours of energy on cooling alone. That’s nearly 4% of the entire country’s annual energy usage. It isn’t just because cooling systems are running constantly year-round. It’s also because many companies refuse to upgrade to more efficient solutions.

Refrigeration is a massive energy hog. So how can it be improved? There are several ways:

  • More efficient motors
  • Reduced and more effective use of refrigeration space for walk-ins
  • Smarter fans with variable frequency drives (VFDs)
  • Renewable energy farms
  • Intermittent absorption refrigeration

Food waste at the retail and consumer levels amounts to 30–40% of the United States’ total output and billions of tons per year. Better and more reliable refrigeration technology at every stage of the supply chain, including warehouses and vehicles, means less food wasted worldwide and greater security for products at rest and in transit.

5. Monitor, Automate and Notify

Through real-time monitoring and automated processes, managers and operations teams can take action to reduce consumption. For instance, let’s say an employee walks away from a piece of equipment and leaves it powered on. With traditional equipment, that machine would continue draining power and increasing costs.

With automated and smart equipment, a notification would be sent to the appropriate administrator, who can then send out an order to have the machine shut down. Moreover, this can all happen within an instant, and administrators can be off-site and notified remotely.

Even better, the process could be improved further by installing an IoT sensor that automatically turns off the hardware after an expiration period.

An energy dashboard, accessible via mobile platforms, would allow facility managers to keep an eye on resource consumption, general costs, and operations no matter where they are. Creating a unified and always-on system with automation is definitely possible with the help of modern technologies like the Internet of Things (IoT).

The cost of food supply chain recalls stands at 48 million illnesses and $55.5 billion per year in productivity losses, amelioration efforts and the rest of the fallout. As with the other points made here, an investment in higher-efficiency equipment with lower power requirements translates to dividends elsewhere.

More efficient and widely connected machines in the supply chain mean fewer opportunities for failure and pricey recalls. This also leads to ongoing cost savings, which begin on day one.

6. Educate Employees

A cultural response to energy reductions can also have a huge impact. By training and educating employees on the importance of energy conservation, companies can gain an edge. This could include steps as simple as turning off the lights when departing an unoccupied room, remembering to power down equipment, or discussing more effective techniques.

If and when people are armed with the correct knowledge, they can make more informed decisions. The idea is to build a culture around energy conservation, operational efficiencies, and smarter utilization. Make it a team-based practice so everyone holds themselves accountable and values the initiative.

Cultivating mindfulness in this area of the company’s culture translates elsewhere, too. Safeguarding against unsafe habits, incorrect equipment usage and improper handling techniques, and encouraging workspace sanitization, is everybody’s responsibility.

Whether it’s saving money on electricity for the company’s and planet’s sake or protecting the customer from product defects, ongoing education makes for a stronger culture and a more reliable product.

Make It Happen

The longer a manufacturer continues to operate without efficient solutions in place like the ones discussed in this column, the greater the energy consumption levels and the higher the expenses. It is beneficial to all to adopt some of these practices as soon as possible, and there’s no question that it will result in higher profits. In several ways, some less obvious than others, this efficiency transformation means safer products, employees and customers, too.

As energy prices continue to climb across all sectors and the impact on the environment mounts, it makes sense to reduce consumption, find smarter sources like renewable energy, and upgrade equipment, processes and operations accordingly.

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).
GREG BALESTRIER, Green Rabbit
Retail Food Safety Forum

Solving Food Safety Challenges in Today’s eCommerce Driven World

By Greg Balestrieri
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GREG BALESTRIER, Green Rabbit

Think about this number for a second: Consumers spent more than $19 billion on online grocery in 2019. While this is still a small segment of the overall $800 billion U.S. grocery market, more consumers than ever before are turning to eCommerce for the fulfillment and delivery of perishable goods, positioning the grocery delivery market to grow dramatically, especially as companies like Amazon continue to innovate in this area.

Adding to this, a recent survey found that 68% of consumers feel the freshness of perishable items is the number one quality they look for in online grocery retail. This is where things become complicated, as shipping perishables introduces an entirely new set of quality challenges for eCommerce brands. This is hindering the market from reaching its full potential until the biggest problem is solved: Ensuring food safety and freshness in every order.

This is a double-edged sword for retailers, grocers and CPGs: Interest in their service is taking off, but it takes just one package of spoiled meat or wilted vegetables to potentially lose a customer to a competitor—or even worse, get someone sick.

Today, spoilage and food safety issues are primarily driven by breakdowns in the cold chain, and it only takes one mishap to affect the quality of food throughout the rest of the delivery lifecycle. To achieve optimal freshness and keep customers happy, grocers, retailers and their trusted partners need to focus on three primary food freshness factors: Temperature, storage and packaging.

Controlling each of these issues starts at the warehouse.

Freshness Starts at the Warehouse

For most parcels, such as clothing, books and other commonly ordered goods, temperature control is rarely an issue. However, facilities that store perishable foods have a constant component to manage—temperature fluctuation.

According to the NRDC, cooling and refrigeration inconsistency is one of the biggest contributors to food spoilage and waste. This is because every food item has a definable maximum shelf life, and storing them at less than optimal or constantly changing temperatures can exacerbate and drastically shorten its timeline.

Mistakes with heightened temperatures on items like meat and poultry can also lead to bacteria growth and foodborne illnesses. In fact, the CDC estimates that 48 million people get sick, 128,000 are hospitalized and 3,000 die from foodborne diseases each year in the United States, putting a spotlight on how seriously food safety issues need to be taken.

The Need for Proper Rotation Processes

First expiration, first out (FEFO) is a motto all organizations should live by when stocking inventory. In addition, it is a critical process when working to avoid the food spoilage crisis. It may come as a surprise, but not all distribution centers have this type of rotation system in place. This means organizations could send spoiled food to consumers because an item was pushed to the back of a refrigerator during the re-stocking process and unknowingly shipped passed its expiration date. Not only does this create massive amounts of food waste, tarnish a brand and eat into a company’s profits by replacing low margin products, but consuming a spoiled food item can also be detrimental to one’s health.

While it helps to keep these types of costly errors in mind, as warehouse operations grow, there’s no possible way to manually scale this system.

Luckily, breakthroughs in cold chain technology have produced automated solutions that help organizations track everything from expiration dates to potential recalls. These types of technology support the entire cold chain lifecycle and ensure that warehouses and their grocery partners have the visibility they need to ensure freshness from fulfillment to the customer’s doorstep.

However, when the product is ready to leave the warehouse, it’s arguably about to enter the hardest portion of the cold chain lifecycle: Delivery.

Key Considerations for Packaging

For fragile items, packaging is all about keeping the item protected from drops and damage, but for food the focus should be on keeping the item fresh and at optimum temperatures throughout the duration of transit.

Given many grocers outsource delivery, they have little interest in whether food spoils, mainly because they are unaware of the package contents and are more focused on getting the item to the right location fast and effectively.

Yet there are many obstacles that need to be addressed during the last leg of delivery. What is the temperature in the delivery vehicle? If no one is home or at the office, will the package spoil outside in the heat?

For perishables, it is imperative that spoilage rates, delays in shipping schedules and unattended delivery scenarios are important factors in determining the amount of cold pack and protective stuffing that goes into the package. If these factors are not considered, customers could return to spoiled, melted or even crushed perishables.

Getting Food Fast and Fresh

Today, grocers and retailers are bullish on building out omnichannel food initiatives. However, balancing brick and mortar locations while developing profitable and efficient online delivery systems is often more than one organization can take on. While there are trusted partners designed to support eCommerce fulfillment and delivery, few are purpose-built to handle perishable foods.

Either way, in order to see wide-scale adoption of online grocery initiatives, grocers, retailers and ecosystem partners need to start prioritizing the key temperature, storage and packaging considerations and challenges associated shipping perishable foods. Acknowledging these challenges and implementing solutions for them will not only keep your products and deliveries fresh, but they will also keep customers coming back for more.