Supermarket Food Safety: Emerson Cold Chain Solutions
Katrina Krites | Marketing and Business Development
Manager, Food Retail
Emerson’s Commercial and Residential Solutions Business
Providing consistently safe and high-quality food in supermarkets is important to each stakeholder in the food retail supply chain. From farm to fork, grocers depend on their cold chain suppliers to collect, share and report on the handling and shipping practices that contribute to food safety. In the first blog based on an article in PerishableNews.com, we examined food retail market trends and risk factors impacting food safety and quality. In this companion blog, we will explore how Emerson is helping food retailers and stakeholders address these challenges at nearly every step of the food supply chain.
Harvest and processing
The potential decay of perishable produce starts the moment it is picked, but this can be stunted by controlling temperatures and the ambient environment via: flash cooling/freezing; temporary staging in storage coolers; and pre-cooling shipping containers. Shipping containers may be modified with ripening agents, and processors often measure the levels of ethylene, a natural gas that can accelerate ripening.
Emerson provides temperature-probing devices that can be used to measure internal “pulp” temperatures prior to and during the staging and loading processes. Our real-time temperature monitoring and tracking devices can be activated inside a shipping container to immediately begin monitoring location, temperatures and other environmental conditions of in-transit perishable shipments.
Food’s journey to supermarket shelves can last anywhere from days to weeks — by truck, sea and/or air — and grocers rely on their shippers to provide an unbroken chain of temperature certainty. Loading best practices promote airflow and shipments to be “load locked” in order to limit excess vibration. Transport containers must be able to maintain temperatures and provide visibility into container conditions. Mixed-load cargos may have different refrigerated temperature zones within the same shipment.
Emerson’s field-tested, proven compression technologies can withstand the rigors of the road while helping operators to ensure that their transport refrigeration systems preserve product at specified temperature ranges. Temperature monitoring, logging and tracking devices — combined with our cloud-based software portal — can provide real-time temperature and location conditions of product in-transit. The software enables live remote monitoring and issues alerts to stakeholders based on user-defined parameters, such as: temperature excursions; changes to shipping atmosphere; vibration; security breaches; and shipping delays.
Cold storage distribution centers
Upon receipt of food at a cold storage facility, handlers must inspect product temperatures and conditions, including pulp temperatures with probing devices, and trip data from logging and tracking devices. Relying on only the ambient air temperature of the shipping container is not an accurate measure, as some carriers may turn off the refrigeration system during shipping to preserve fuel. After inspection, handlers must promptly transfer perishable cargo into a designated cold storage temperature zone. The entire process must adhere to each facility’s established Hazardous Analysis and Critical Control Points (HACCP) and/or Hazard Analysis and Risk-based Preventative Controls (HARPC) plans.
Emerson’s logging and tracking devices give end-users the ability to maintain live, remote visibility for monitoring the temperatures and locations of their in-transit shipping containers. In cold storage facilities, our compression and refrigeration technologies help operators to establish and maintain proper temperatures in various cold storage zones. Robust facility monitoring solutions help operators to remotely oversee conditions, ensure proper temperatures, and automatically record temperatures for use in HACCP reporting.
From the moments perishable shipments are unloaded in supermarkets, operators take ownership of food quality and safety. This starts with inspection — checking pulp temperatures and trip data logs — and continues with the prompt transfer of perishables into designated cold storage coolers or freezers. Once in cold storage, control platforms help retailers to monitor perishable temperatures and optimize food quality.
Refrigerated storage and staging coolers for click-and-collect fulfillment must have sufficient capacity to handle fluctuations in order volumes and frequent opening/closing of walk-in doors. Order-picking processes and customer pick-ups and deliveries must be optimized to ensure safe handling and proper temperatures. Supermarket food preparation introduces hot-side complexities as consumers look to grocers for home meal replacements. Staff must be trained in safe cooking best practices — such as those provided by the U.S. National Restaurant Association’s (NRA’s) ServSafe® certification course — and cook-and-hold procedures should also follow established HACCP/HARPC plans.
In addition to our proven compression and refrigeration technologies, Emerson solutions address a variety of modern supermarket requirements. These include condensing units with variable-capacity modulation to precisely match refrigeration load requirements and flexible distributed architectures that can augment existing refrigeration systems. We also offer a suite of temperature-probing devices to help grocers automate the recording of prepared food temperatures and assist grocers with food safety and process compliance concerns.
Our powerful facility management, monitoring and control platforms address both existing and emerging food retail complexities. These tools provide near real-time access to critical information to help retailers track, triage and respond to issues pertaining to food quality and safety compliance — in individual stores and across their multi-site networks. In addition, these control platforms utilize alarms, notifications and remote access to provide end-users with continuous building and refrigeration monitoring at any retail location.
Connectivity drives cold chain visibility
Modern food retailers are held to increasingly higher food safety and quality standards. Store operators, consumers and health inspectors all demand greater transparency into the food supply chain and improved visibility of food’s journey from farm to fork. With today’s connected internet of things (IoT) monitoring and tracking infrastructures, operators now have the potential for visibility into each step of food’s journey — and even the possibility for comprehensive cold chain traceability. Emerson provides the refrigeration technologies and IoT-enabled infrastructures to help stakeholders at each point monitor, control and track a variety of conditions necessary for preserving food safety and quality.