Why Canning in Foodservice Really Isn’t a Good Way to Preserve Fresh Produce
Canning has long been a trusted method for preserving fresh produce, offering a way to extend shelf life and minimize waste. I grew up canning garden produce at home with my family and to do this day, I still can salsas, meat broths, pickles, and other tomato products for home use. In fact, it is a hobby of mine that I enjoy undertaking – much to the chagrin of my wife who simply tolerates my obsession to find new, interesting, and safe canning recipes.
Canning has had a resurgence of sorts in the past few years. Thousands of videos online address the topic and fueled by the supply chain disruptions and rising food prices we’ve seen since the pandemic in 2020, canning has become a popular activity once again. Home canning is a great activity – it allows individuals to preserve the produce they grow or buy locally, reduces dependence on store-bought goods, gives you greater control over your food supply and what goes into it, and fosters a sense of independence and preparedness.
That said, home canning should stay just that way – in the home. In a foodservice environment, we’ve seen increased interest in this among chefs and managers as they look to make use of farm-to-table or farm-to-school programs. While it may be ideal for home operations, canning fresh produce in a foodservice setting is often impractical and can lead to inefficiencies and safety risks.
Canning is very labor-intensive, requiring multiple steps. Once you have the produce in the operation, you must wash it, process it, sterilize your jars, prepare the product, fill the jars, and then finally process. Then, once you finish processing you realize that some of your jars didn’t seal, and all that work was for naught! In a foodservice environment where efficiency is paramount, dedicating staff hours to such a tedious process can disrupt operations. Instead of focusing on food preparation and service, staff would be tied up with canning, reducing overall productivity and profitability.
Most importantly, canning carries inherent food safety risks. Improper canning can lead to botulism, a serious and potentially fatal illness caused by the bacterium Clostridium botulinum. Even a small amount of botulinum toxin can make someone ill because the toxin is so potent. Ensuring safe canning practices requires rigorous adherence to tested methods, proper acidity levels, and precise processing times. There’s little room for error, and the stakes are too high if safety protocols are compromised.
From a regulatory standpoint, home canned foods are not allowed in school meal programs per USDA FNS guidelines. If you are another retail foodservice operation, you can only partake in this type of food preservation methods with the approval of your regulatory authority. At the very least, the FDA model food code would require that you have a fully functional HACCP plan in place to receive a variance to engage in this method of food preservation.
In closing, I am a big proponent of home canned food and encourage everyone to try it at least once…at home being the key phrase. But it is a different story in a foodservice operation where you are serving hundreds, if not thousands of guests daily. Hopefully, this discussion will quell your desire to implement canning in your foodservice operation. While canning may seem like a great marketing ploy and a way to preserve fresh produce, it is far from ideal in the foodservice industry. The time, labor, and safety risks associated with canning far outweigh its benefits for a commercial operation. Risk Nothing.
Call out: Most importantly, canning carries inherent food safety risks…there’s little room for error, and the stakes are too high if safety protocols are compromised.
The Route to Safer Fresh Fruits and Vegetables
Although fruits and vegetables are one of the healthiest foods sources in our diet, we continue to have foodborne disease outbreaks of significance from produce, sometimes affecting large groups of people in multiple states because of their wide distribution. The CDC estimates that fresh produce now causes a huge number of foodborne illness outbreaks in the United States. Produce needs our continued food safety efforts at the restaurant level as well as at the stages in agricultural production. Occasionally, fresh fruits and vegetables can become contaminated with harmful bacteria or viruses, such as Salmonella, E. coli 0157:H7, Norovirus, and Hepatitis A. This contamination can occur at any point from the field to our table. If eaten, contaminated fruits and vegetables can cause foodborne illness.
Be Cool, Chill Out, Refrigerate Promptly!
The Cold Chain -- Keeping perishable foods at proper cold holding temperatures (between 28°F and 41°F maximum or 0°F for frozen food) from your food producers / manufacturers to your customers has to be one of our strongest links to safe food and high quality. Sometimes that is referred to in the food industry as “maintaining the COLD CHAIN”. Any slip ups in the cold chain, and we have a weak link. Most all of our state food regulations require 41°F as a cold maximum, but colder is a “best practice” policy to maintain.
Cutting Board Safety
Everyone knows to prepare food only on a clean and sanitized surface. Everyone also knows not to prepare food on a surface previously used to prepare any type of uncooked meat—cross-contamination. But does everyone know what this clean, sanitized, uncontaminated surface should be made out of? Or how cutting boards should be cared for?
A Date with Safe Food Labels
When it comes to food, calendar dates relating to time and temperature are important and sometimes confusing. Terms we use are: 1) food product or code dating used for commercial food manufacturing and 2) date marking used for food prepared onsite in a restaurant. In a restaurant at the receiving step or the retail food store as a consumer, "Sell by July 14" is a type of information you might find on a meat or poultry product. Are dates required on food products? Does it mean the product will be unsafe to use after that date? Here is some background information, which answers these and other questions about food product dating.
