We are a co-manufacture packaging a product for a customer of ours who just acquired a new customer that is from outside the US and is requiring finished product testing on the product that we are packaging. The product is a mixture of ready to eat components which we do not currently receive COA's for. We have not done finished product testing before so I am just looking for some insight and advice from anyone.
1.) Do we start requiring COA's from the suppliers of the components in our mix?
2.) What to test for/not test for (I also asked this to our customer and am awaiting a reply)
3.) Should we keep a retain sample of the same lot we send for testing?
Thanks in advance!