Each of these stores, according to EnergyStar, has one refrigerated display case per 1,000 square feet. This adds up to over 1.5 million cooler cases across the country.
And these systems do not come cheap. At over $1,500 per unit, grocery stores pay more than $2.5 billion for these refrigerated display cases, which are designed to last, at best, 10 years.
However, this is only possible if you keep refrigerator display cases clean, according to Mike Perazzo with Kaivac, manufacturers of professional supermarket cleaning systems.
“Surprisingly, there are no official cleaning protocols for refrigerated display cases,” says Perazzo. “Some professionals suggest cleaning them once per week, others every 90 days.”
Not only will keeping cases clean help extend the lifespan of the units, but this can reduce their energy consumption by as much as 90 percent. That’s because cleaner units work more efficiently, using less energy.
To address the lack of cleaning protocols – and to ensure proper refrigerator display case cleaning – Perazzo suggests the following:
– Inspect and remove any debris found in the units daily.
– Once per week, wipe clean or vacuum coils to remove dust.
– Every two weeks, inspect door gaskets, hinges and drawers to ensure they are clean and working properly.
– Once per month, check and clean evaporator coils; additionally, clean the housing and immediate area around the coils.
– Every two months, “deep clean” all refrigerated display cases.
“Commercial refrigeration dealers can be called in to perform deep cleans,” says Perazzo. “Deep cleans are essential, however they can be costly.”
But, Perazzo points out that alternative do exist. For example, at least one system “is like an indoor pressure washer and can be used by in-house staff. It is specifically designed to clean cooler cases and their components. This can be a significant costs savings”
This leads to another number: 20 years.
According to retailers, high-quality refrigeration equipment, kept clean and well-maintained, can last a much as 20 years, a significant cost savings.
More information on refrigerator display case cleaning is found here.