The integrated HEIST system automatically tests pasteurizers, plate and tubular heat exchangers daily for cracks or other defects, with minimum downtime and maximum accuracy. HEIST™ is the first system of its kind in the world – a patented, innovative, and cost-effective system that puts control of integrity testing in the hands of manufacturers. For Pasteurizers HEIST can also carry out an automatic holding time verification and diversion valve check daily. Change to: The integrated HEIST system automatically tests pasteurizers, plate and tubular heat exchangers daily for cracks or other defects, with minimum downtime and maximum accuracy. HEIST is the first system of its kind in the world – a patented, innovative, and cost-effective system that puts control of integrity testing in the hands of manufacturers. For Pasteurizers HEIST can also carry out an automatic holding time verification and diversion valve check daily.