What you really want to watch out for even more so than color change, is meat or poultry that has a bad odor or is sticky, tacky, or slimy to the touch. Let your other senses be your guide in these instances. Read more: The Color of Meat and Poultry - USDA.
Windows Management Instrumentation(WMI) is a set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented components can provide information and notification.
PowerShell Scripting - WMI Techniques. PowerShell's File Techniques Applied to Win32_Computersystem. Our mission on this page is to combine opening files with WMI techniques. Specifically, to open a text file, read the hostnames (machine names), then apply that name to a PowerShell Win32_Computersystem script.