Determine the best type of container. Packaging suppliers will gladly supply samples and information. Whatever the container type and material, it should make handling, emptying and filling easier for everyone. Preliminary cost-benefit information can be obtained at this point to determine which, if any, merit a test run. Source-reduced packaging is effective if product damage does not increase.
Reusable packaging requires closed-loop distribution.
Test sample containers. Walk a sample though its distribution system to see how it works. Write down the opinions of users. Don't expect this to go smoothly, especially if your first effort involves distribution outside the facility. Changes of any kind are rarely accepted without resistance.