To read part one of this feature, click here.
Pest management is a dirty word for some food manufacturers. They don't like to talk about it, and they don't like to admit that it's an integral part of their business. But let's face it - if you're a food brand in Australia worth your name in salt, then you must have a pretty serious pest management plan in place.
Paul Moreira, service manager for Victoria at Adams Pest Control, says the two fundamental pillars of pest management are hygiene and maintenance. But this isn't as straight forward as it may sound, he insists.
"In the food industry there's a requirement to integrate a pest management approach which is multi-faceted. So rather than just focusing on applying a pesticide, it's about identifying proofing issues, harbourage issues, alternative food sources. All of those things link into the site's pest management program," he said.
Safety of the end product, obviously, is a high priority in pest control in the food industry. Manufacturers need to be very careful about where and how they fight off pests, and there are a number of options available to them, Moreira says.While toxic bates are available, which are consumed by rodents and kill them five to 10 days later, Moreira believes that in the coming years the industry will move award from these chemicals.
"Another approach is to have a monitoring block, which allows you to assess activity. So the pest controller goes around and has a look at if the block has been consumed or not,and if it has you obviously have a problem and you have to go down the path of getting rid of the infestation," he says.
This approach means there's no risk of contaminating the product being manufactured, but on the other hand it's purely an information gathering exercise - it doesn't treat the problem at all.It's for this reason that the American Institute of Baking (AIB), which has an internationally recognised standard, is moving away from the use of non-toxic chemical blocks internally, instead recommending the use of mechanical traps.
"It's all about minimising pests within the site by hitting them outside, and then inside your treatment becomes a non-toxic approach. According to the AIB's standard you have to use a mechanical trap. You can't use a monitoring block ... because all that does is feed the rodent. You haven't addressed the issue of having the rodent there."
While Adams Pest Control's latest product, Baitsafe, can be used with toxic baits, it's like nothing else on the market as it allows food manufacturers to use pesticides in cavities in a safe, controllable way, Moreira says."What Baitsafe allows us to do is put a device in that cavity and then apply the pesticide in a very secure way. It looks like a fire alarm. It's flush against the ceiling, but it doesn't have to be in the ceiling. It can be in the splashback of the kitchen, it can be in the kickplate of a bench or in a wall, but it sits flush against it.
"We have a key, we place it in the device, open it and the pesticide is on the other side, or we can even apply a monitoring block or a sticky board to allow us to gauge the activity levels of, say, fruit flies or cockroaches, then we close the device."So as far as anyone on this side of the wall, where people work, are concerned, all they see is a tiny little circular flat planel and they can't access the pesticide that's on the other side," Moreira says.
Money well spent
Food manufacturers need to be proactive with their pest management strategy. It goes without saying that it's much easier - and more cost effective - to prevent an infestation from occurring than it is to have one treated.So while regular inspections and a detailed pest management strategy might seem like an unnecessary expense, it's money well spent, says Simon Lean, Australian technical manager at Rentokil.
"Pest control isn't free but they [food manufacturers] do get good value for money. It's always something you have to have on your books and something manufacturers often want to get done for as cheap as possible, but generally, if people are chasing cheap pest control they get a cheap job, and if they get a cheap job they end up with pest problems.
"That's the last thing they need because all these food manufacturing companies are very particular about brand protection. The last thing they want is for someone to see a rat in a loaf of bread or something like that," Lean told Food magazine."A PR disaster can really hit these companies. But it's not just PR. If they've got a contaminated line in their manufacturing, just imagine if they have to close that line down because it's either riddled with pests or simply broken. The cost of that line being down could be thousands of dollars, sometimes hundreds of thousands a week, in lost production. Whether that be because of pests or an engineering concern, it gets very serious and it really does hit their bottom line."
Regular inspections are critical for any food brand, especially those in older facilities that may not be able to keep pests out as effectively as new buildings can.
Having said that, regular - and thorough - hygiene and maintenance schedules go a long way in pest-proofing your business, and therefore minimise the likelihood and cost of treating infestations, replacing equipment or - heaven forbid - dealing with product recalls.
"If you keep things clean and in good working order, it's going to be easier to inspect for any pest problems, and you're not going to have as many pest problems because it's clean and you don't have any food for the pests or harbourage where they can hide and breed," Lean says."That's why inspections are so critical in food manufacturing."