1. Stored Products Insects
This generic term covers multiple species of insects, including beetles, weevils, moths, mites and others. A study that looked at 1,000 companies in 5 countries found out that these insects caused the most economic damage to food processing businesses. 60% of the companies that had pests reported annual revenue losses of 1 to 9 %, while 73% of the business owners were highly or moderately concerned about revenue loss because of pests.
The most susceptible products to these types of insects are cereals, seeds, nuts, spices, teas, dried fruits and even preserved meats. Some of these insects can enter the packaging through tiny holes that may not even be visible at a first inspection. Even if these insects do not consume a large quantity of the product, they will contaminate the entire package through faeces, shed skin, cocoons and so on.
Not only this, but pests in some ingredients can make them change their properties and then cause damage to the production lines and machineries. Replacement costs can be very high and can also lead to fines or closure.
Signs of stored products insects include: damaged goods, holes in products or packaging, live or dead insects, larvae and silken webbing on products, packages, food spillages, beams or window sills.