Ben’s guest in this episode of the Bees with Ben podcast is Simon Wynn-Taylor from Steritech. The

company’s website (steritech.com.au) details some of the history of this family-owned Australian

business, which emerged in Melbourne in the 1970s as the pioneer for gamma irradiation processing

and has continued to pave the way for sterilization and decontamination processing. Steritech now

operates 3 gamma irradiation plants and 6 ethylene oxide sterilization chambers across 4 sites in

Melbourne, New South Wales and Queensland, and is the most prominent contract sterilization and

decontamination processor in the Asia-Pacific region, and one of the world’s largest. The business

services an extensive variety of industries and companies worldwide and routinely processes over

1,000 different products.

For the agricultural sector, this means the safe and effective elimination of contamination and pests,

in order to meet biosecurity and quarantine requirements and allow export both within Australia

and overseas. Steritech introduced the first whole pallet irradiator customised to treat fresh fruits

and vegetables in the world, located in Queensland. The facility provides phytosanitary treatments

for fresh produce that does not require the cold chain to be broken during treatment and is a

valuable tool for pursuing the highest possible quality and freshness.

Similarly, Steritech’s sterilization processes have important applications in the fields of medicine,

pharmaceuticals and cosmetics by minimizing any risks associated with microbiological

contamination. The company provides essential treatments for imported goods, as well as assisting

to keep a large range of pet foods and packaging also free from contamination.

But what about beekeepers? Well, gamma radiation has been proven to be the most effective

method of eliminating pathogens and insects from contaminated equipment, meaning that in many

instances beekeepers can avoid the costly exercise of replacing hives. Gamma irradiation kills small

hive beetle, American foulbrood and European foulbrood, amongst other pests, and is used by many

beekeepers as an important form of regular maintenance.

Incidentally, it was back in 1982, during a large outbreak of AFB, that Steritech was involved in the

first commercial gamma irradiation of bee boxes in the world, when 1,400 boxes were treated as an

alternative to simply burning them. Since then, Steritech has successfully treated hundreds of

thousands of hives, and the process is recognized by all relevant state departments as a proven

method of eliminating AFB and EFB. Unlike chemical treatments, which may not reach every part of

the equipment, gamma irradiation penetrates all areas of the bee equipment and leaves no

residues.

Ben says he gets about half a dozen pallets ‘zapped’ per year and has been using the process for

many years. Simon operates from the relatively new facility in Maryfield, on the northern outskirts

of Melbourne, which is situated about 20 minutes from the large fresh produce market at Epping.

Sterilization treatments are particularly instrumental in preventing the spread of fruit fly and thereby

ensuring that local produce can be exported to other important markets. Simon says the concrete

bunker at Maryfield which ensures that all radiation is contained has walls up to 5 metres thick, and

that the amount of concrete used in its construction was equivalent to one concrete truck every 30

minutes for 30 days! He says it is important to remember that Steritech is happy to service all

customers - down to the smallest of beekeepers. And the strangest thing he has had to treat? It’s

hard to beat the Swedish metal band whose guitars had to be irradiated since they were covered in

animal blood! For further details visit steritech.com.au