Which of the following indicators has a graduated scale?
(a) Defrost
(b) Time-temperature integrators
(c) Time-temperature integrators/indicators
(d) All of the mentioned
I got this question in exam.
My doubt is from Principles of Food Freezing-3 topic in section Food Preservation, Principles of Fresh Food Storage, Principles of Refrigerated Gas Storage of Foods and Principles of Food Freezing of Food Engineering