Temperature is one of the most important environmental factors determining food preservation, as variations in temperature during food shelf life can compromise the safety and the shelf life of perishable food products such as muscle based foods. TTIs are effective tools designed for continuous monitoring of the time and temperature history
of chilled and frozen products throughout the food chain (Lee & Rahman, 2014). TTIs offer an indicator that visually changes with the time elapsed from packaging, a process that is accelerated with increasing temperature (Galagan & Su, 2008). These indicators allow continuous monitoring of the storage conditions. Therefore, they can inform about a cold chain break and can be used as indirect shelf life indicators. TTI indicators that are available in the market are based on physical, chemical, enzymatic or biological processes