# Travel to Karamja and get off the ship. Go to the bar and buy a Karamjan rum which costs 30 coins.
# Now talk to Luthas in the house northeast of the bar. Talk to him and say that you want to help him. He will give you a job.
# Go to the banana field west of this house. Pick 10 bananas and go back to Luthas' house. Just east of it you will see a crate. Use some (not all) bananas in the crate then use the Karamjan rum on the crate.The rum is now inside. Put the remaining bananas in the crate until it's full. After it's full, talk to Luthas and he will pay you 30 coins.
# Travel back to Port Sarim and walk west. You will see a man called Wydin who owns a food shop. If you have the White apron now, put it on. If you don't, go to the clothes shop in Varrock to buy one.
# Talk to Wydin and ask him to hire you, if you are wearing the White apron, he will hire you. When you need to get hired by Wydin he won't hire you if you talk to him. Instead you must try to open the storeroom door and he will tell that you can't go in unless you are an employee; then if you have the apron on and ask him, he will hire you.
# Search the all crates that are in the storeroom. One of them contains bananas and your Karamjan rum, take the Karamjan rum out.