Everything in all games disappears on use. The only thing any game you can get back I've ever played are some arrows you shot. We did some polls, the major thing people liked about jars was finding them, filling them and boiling the water. The refund and super easy crafting was what made it OP and unbalanced and made water survival trivial, clogged up people's inventory, etc etc. We added back jar crafting gated by the crucible. We'll consider jar refund options AFTER people play it and don't judge a book by it's cover.