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SPI Heat treatment case study
Fuller's Brewery - Chiswick


Since 2013 Trustheat have been assisting prestigious London brewers Fuller, Smith and Turner with a 100% organic solution for stored product insect infestations.

With a single visit treatment that ensures lasting efficacy, Trustheat have vastly reduced flour moth counts while still ensuring the minimum of disruption to their demanding production schedule.

Our solution involves raising and then maintaining the internal temperature of rooms and machinery for a prescribed period, desiccating all life-cycle stages of an infestation, including both live insects and their eggs.

Key heat treatment benefits


  • 100% organic, chemical-free treatment ensured production could resume the morning after treatment.
  • Single visit, multi-system treatment minimised downtime and disruption by treating multiple production areas.
  • Heat desiccated and eliminated all life stages of the infestation, including eggs that would traditionally be resistant to chemical treatments.
  • Heat penetrated all areas of the rooms and production machinery, ensuring there were no safe havens for living insects to avoid the treatment.
  • Long-lasting efficacy - Fuller's still recorded a zero moth count 3 months after our treatment had been completed.
  • On-going cleaning schedules have been reduced due to the elimination of all life cycle stages of the infestation.


'Following their most recent treatment, we have subsequently found our moth levels to be zero, even after 3 months, which is an unprecedented success. We would recommend Trustheat's SPI treatment to anyone looking for a 100% effective, single visit treatment that can be easily accommodated within production schedules.'

Henry Kirk


Production Brewer

Fuller's of Chiswick

insect heat treatment

Heat penetrates production machinery, ensuring complete coverage in even hard to reach areas

brewery bottles

Single visit treatment ensured the minimum of disruption to production of many of Fuller's best-loved brands


About Trustheat


We help a variety of brewers, millers and other food producers quickly create a level playing field by desiccating every stage of the stored product infestation life cycle.

Our fleet of mobile systems are self-powered and scalable, and we ensure eradication within buildings and production machinery by providing a complete coverage solution that can simultaneously treat multiple rooms.

Trustheat clients benefit from a 100% effective, single visit treatment that is completely organic and chemical free and we have helped reduce on-going cleaning cycles in a wide range of food production facilities.

Live time monitoring of temperatures and data recording allows us to evidence that the required kill temperatures have been reached and maintained for specified periods, providing our clients with an evidenced, accurate and effective solution to the challenge of stored product infestations.

Our solution can eradicate every infestation, including all forms of mites, moths, beetles and weevils typically found in food production facilities.

We can provide a fixed price, fixed schedule quotation for any size of production facility and we work closely with production managers to ensure the minimum of downtime and disruption.



To find out more contact us today

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Trustheat Ltd - Company registration no: 09851520

Registered Address: Unit 2, Newbridge Industrial Estate, Pitt St, Keighley, BD21 4PQ