Custom Cheese Mold with Follower for making your own cheese. This size worked perfectly for 2 Gallons of milk, but you could probably scale it up for large volumes.
I printed it at 85% gyroid infill (100% is a pointless amount) and it stood up really well under the
Presse a fromage - Cheese press I printed to press it. There was a little flexing in the cross piece, but nothing too bad that was permanent. I sized my follower to fit into the Vis part of the linked press. Printed in Natural Tough PLA to prevent any issues with colorants interacting with the cheese.