Rapid test equipment for shelf Life determination of sorghum Coffee Substitute?

Please help me find the right methods and equipment to determine the shelf Life of Coffee Substitute products.

Your item is not a main product but a substitute, Its unknown in general public, therefore only your kind and those that knows it well understand how it behave in storage…
You can study about "accelerated shelf life tests. :In food science book or from the web…Just type the keyword i mentioned. Then learn how you can apply it
BTW, there is a forum article about it please search that out…