Guild Wars 2

I’ve collected all the mordrem parts for the Luminescent gear, but the items are still in my inventory.
Can I now discard them or turn them in for crests? Or do I need to keep them?

you can trade them with the cryptobotanist for crests. At different places he gives different prices for parts.

Once they’ve been unlocked in the luminescent collections, you no longer need them. Feel free to turn them in for crests, or just discard them.

I wish we could cook them

You do not need to keep them, or anything from the collection. Contrary to such a non intuitive name, collections only require you to get an item, not to keep it. Be sure to sell all those luminescent strings and linings as well, once you have ‘collected’ them.

Turn them in, collect as many crests as you can, and give us Mystic Toilet and crafting stations in the Silverwastes!