When I worked at a Coke bottler in Japan, we had similar issues with product.

Stuff that didn't sell was called "Flush Out" and had to be disposed of.

You couldn't legally just dump the contents without paying money so I made an app that let employees get cases for shipping costs. It was popular, even though we were usually talking about weird flavours that no one liked (stuff akin to Apple Ginger ale)

They eventually got rid of it, but I was already out of the company so I didn't know the reason.

Sometimes employee benefits like that have weird tax obligations that the company would rather not deal with.