Thriff

1. Nope. The Lore and Legends of Quendor says so.
2. There is a way to keep truffles fresh.
3. The clock setting on the hurdy-gurdy will renew the truffles when you turn the crank to the left (if the truffle is inside).
4. However, they'll start decaying again right away.
5. There's a way to keep them eternally fresh.
6. Don't continue unless you've visited the forest north of Gurth.
7. Have you answered the riddle on the boulder?
8. Remember what the hollow voice says when you answer the riddle.