Sousadey!  I'm the Lucky Iron Fish and I'm really easy to use.

Just boil me for 10 minutes in liquid and broth based meals like soup, stews or in drinking water. For maximum effect use a bit of lemon juice as the acidity helps extract my iron.  But no caffeine please, it blocks my superpowers!

After you're done, wash me thoroughly with soap and a soft sponge, then dry me off with a cloth and store me in a dry place. If I rust, don't panic.  Just brush the rust off or clean me again.  And make sure I am completely dry before you put me away.