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AIFST Cook Chill Session July 2010

AIFST Cook Chill Session July 2010. [Time and] Temperature Indicators Presented by: Gary Kennedy. Agenda. Why are these of importance? Temperature Indicators Data Loggers Colour Change Temperature Indicators Potential new technology?. Introduction. Why are these of importance?

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AIFST Cook Chill Session July 2010

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  1. AIFST Cook Chill Session July 2010 [Time and] Temperature Indicators Presented by: Gary Kennedy

  2. Agenda Why are these of importance? Temperature Indicators • Data Loggers • Colour Change Temperature Indicators • Potential new technology?

  3. Introduction Why are these of importance? • Cook chill relies on exact measurement of time and temperature • Regulation and retailer critical limits are absolute [e.g. reject at 5.1oC] • Manufacturers / Food Service need to know their process is in control, even when partially out of their control [e.g. Transport, after hours] • Useful as a validation and verification tool.

  4. Data Loggers • record over a longer period, such as delivery via road transport or over a weekend, providing a complete history of time and temperature during that period • typically have USB attachments to download data • reusable models exist • can be set with alarm, even to transit alarm via satellite. Alarm can be set at operating limit, to alarm before critical limit is reached.

  5. Example: Monitor-in-Transit [USA]

  6. Example: Monitor-in-Transit [USA] The Monitor In-Transit temperature chart recorder generates a permanent paper strip chart data record of temperature conditions and time duration for up to 10 days run time. The Monitor In-Transit recorder is calibrated to +/-1°C. Application: Fill out the informational tag and remove the top (white) copy. Pull the tab to activate the monitor. Remove the adhesive strip from the cover and close the flap. Place the monitor in the container or on the product. Interpretation of Results: At destination, the receiver cuts the tamper-evident seal, pushes in on the cover, and lifts up to remove the data chart from the recorder. The chart documents the temperature history of the shipment.

  7. Transi-Temp [USA]

  8. Transi-Temp [USA]

  9. Transi-Temp [USA]

  10. KoolWatch [USA] The KoolWatch electronic temperature indicator, developed at Cold Chain Technologies (CCT), accurately monitors two low and two high preprogrammed threshold temperatures (between -20°C and +60°C), and will indicate time and duration of a temperature breach (up to 6.8 days). Once started, the KoolWatch LCD screen will always display either a blinking "OK" or a "Not OK" icon. Upon receipt of a shipment, the receiver can verify its integrity by pressing the button to view the time and temperature at which the shipment breached the threshold, if applicable, and review the programmed settings. If a breach occurs, the data recorded by the KoolWatch is permanent and tamperproof.

  11. KoolWatch [USA]

  12. KoolWatch [USA]

  13. KoolWatch [USA]

  14. KoolWatch [USA]

  15. Colour Change Devices • Typically single use • Change colour at a set temperature [and in some cases time] • Used for coolroom verification and for product transport

  16. Chiller Checker The miniature self-adhesive Chill Checker has a 2oC accuracy. Hand activated to monitor products when needed, the Chill Checker will stain a white paper inside the plastic capsule. When the specified rating is exceeded for 5 minutes the white paper turns blue or violet.

  17. Chiller Checker

  18. T1000 - USA

  19. On-Vu [BASF]

  20. On-Vu [BASF] The OnVu™ consists of an apple shape with a centre and a shell. Upon activation with UV-light, the centre of the apple turns dark blue. The clear contrast between the active indicator and the reference colour indicates that the product is safe to consume. The active centre of the apple then begins to become progressively lighter over time, and with exposure to temperature. Exposure to excessive temperature fluctuation accelerates the lightening process.

  21. Timestrips [UK] Timestrips are disposable smart labels.  They can measure elapsed time from minutes up to over a year, in the freezer, refrigerator, ambient or elevated temperatures. Varieties: • 5oC / 5 days • 5oC / 3 days • 2oC / 24 hours • 2 hour / 4 hours @ ambient

  22. Timestrips [UK] The Timestrip has a special porous membrane through which a food-grade liquid diffuses.  The Timestrip has a peel off strip removed, with the strip then stuck to the product. The Timestrip is activated by squeezing a start button which moves the liquid into direct contact with the membrane.  The liquid then diffuses through the membrane On the top surface of the Timestrip markers are printed which communicate the time since activation.

  23. 3M Monitor Mark

  24. 3M Freeze Watch

  25. WarmMark [USA]

  26. Thermax [USA]

  27. Avery [USA]

  28. Potential New Technology?

  29. Colour change crayons

  30. Colour change crayons • 10 Temperatures Crayon Supplied In Kit: Initial Crayon Colour: Light Gray: changes to Violet Blue @ 120°CInitial Crayon Colour: Pink: changes to Blue Violet @ 195°CInitial Crayon Colour: Pale Blue: changes to Light Green @ 215°CInitial Crayon Colour: Light Purple: changes to Bright Blue @ 225°C

  31. Conclusion

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