Dispensing of Raw Material

Since we are using different scoops for dispensing materials, what is scientific rationale behind first dispensing Colours/Excipients, followed by API followed by Colours?

In order to prevent cross contamination as excipients and coloures may be used in different products.


Only science is just to prevent crops contamination of API with colours/excipients which are used for other products also.

To prevent cross contamination there is new separated dispensing area for API and also for excipients