Final answer:
Ashing the cereal sample is done to determine the amount of inorganic material or ash present in the cereal.
Step-by-step explanation:
The purpose of ashing the cereal sample is to determine the amount of inorganic material or ash present in the cereal. Ashing involves burning the sample at a high temperature to remove organic matter, leaving behind only the inorganic components.
This process helps in determining the nutritional content of the cereal and can be used to assess the quality and purity of the product.