Timestrip® Seafood 38°F (3.3°C) Nonreversible Temperature Indicator

Seafood processors face a dilemma with reduced oxygen packaging. On the one hand it extends the freshness of a product, while at the same time exactly the right oxygen-poor conditions are created for Clostridium botulinum (C bot) toxin growth if temperature monitoring for the product isn’t carried out effectively during every stage of the processor to end-consumer cycle.

Having consulted with the FDA on the product specification, Timestrip’s Seafood 3°C temperature monitoring labels make tracking temperature breaches in cold chain seafood applications a simple, cost-effective process.

Our seafood Time Temperature Indicators (TTIs) offer an extremely cost-effective C bot temperature monitoring solution in food standard and food safety monitoring. This is why our technology has already been adopted by a number of innovative businesses, who value our precise, efficient, user-friendly temperature indicator labels that help ensure effective cold chain management around the world.

An Essential Tool in Managing C bot Prevention

C bot type E and non-proteolytic types B and F are psychrotrophic and can grow and produce toxin at temperatures as low as 3.3°C (38°F). Other strains of C bot (type A and proteolytic types B and F) can grow and produce toxin at temperatures slightly above 10°C (50°F).

Timestrip consulted with the FDA on our high-tech, low cost control for the hazard of non-proteolytic C bot growth and toxin formation in reduced oxygen packaged (ROP) seafood.

The aim of Timestrip® Seafood 3°C TTIs is to provide seafood processors and transporters with clear, unambiguous data as to whether the handling of any individual seafood product, that has or is being processed, adhered to C Bot prevention standards around cold chain management.

Boundary for Clostridium botulinum toxin liberation over a range of various storage temperatures as defined by the Skinner and Larkin relationship (Journal of Food Protection. Vol. 61. No. 9. 1998. Pages 1154-1160)

Timestrip® Seafood Product

Timestrip® Seafood

for Reduced Oxygen Packaging

3°C threshold

2 – 4 hour run-out window

activation blister on top

Get a Sample

Ready to try it for yourself?

Key Benefits & Features of Timestrip®Seafood 3°C TTI

  • Flexible Use and Storage

    Inert until activated so it can be stored at ambient temperatures and activated when required in the field.

  • Reliable Evidence

    Single use, irreversible and the temperature monitor is accurate to within +/-1°C/2°F.

  • Targeted Decision Making

    Small, light and cost effective enough to support the monitoring of many packs within a consignment; pockets of temperature abuse can be identified.

  • Easy to Read

    Visually clear and easy to interpret with no ambiguous colour changes, so handlers can quickly and confidently recognise temperature abuse.

  • Quality Assured

    Manufactured to ISO9001:2008, process and batch validated, and each indicator has a unique serial number for traceability. It is patented, safe and disposable.

  • Cost

    A low cost solution that requires no power. It is a cost effective and practical replacement for data loggers, with a shelf-life of two years as opposed to six months for similar products.

  • Secure Audit Trail


Our products are manufactured under the controls established by an IQC approved quality management system that conforms with ISO 9001:2008

“A control strategy is now included on the use of Time Temperature Indicators or TTIs on reduced oxygen packages where maintaining the product below 38 degrees Fahrenheit is the only control to prevent nonproteolytic C. botulinum toxin formation.”

FDA Fish and Fishery Products Hazards and Controls Guidance, 4th Edition

Designed Around FDA Guidance: Reduced Oxygen Packaging – C. botulinum

Timestrip’s Seafood 3°C TTI is specifically designed around recommended FDA guidance for the use of TTIs for seafood handling processes, optimising processors and transporters’ overall C bot prevention and C bot temperature monitoring strategies:

  • Temperature

    Temperature maintained below 38°F (3.3°C) from packing to consumption

  • Placement

    Time-Temperature Indicator (TTI) on smallest unit of packaging

  • Validation

    Time-Temperature Indicator (TTI) validated fit for purpose

  • Verification

    Time-Temperature Indicator (TTI) verified it is functional at time of use

  • Alert

    Colour change alert of unsafe time and temperature exposure has occurred that may resule in C.botulium toxin formation

  • Visual Proof

    Irreversible colour change alert

  • CCP Identification

    TTI reciept, storage, application and activation should be identified as CCPs

Contact us today to enquire about Timestrip PLUS Food samples. If you would like samples of multiple products, or have a general enquiry, please use our contact page.

Timestrip® Food Range Sample Request

First Name*

Last Name*




Initial Enquiry

Product Range Interest
Lead Source

Enter the Captcha

adminSeafood 38°F (3°C) – Irreversible Temperature Indicator