200,000+ coins recommended
|582,000 per hour|
Tuna potatoes heal up to 2125 life points each, making them one of the highest-healing foods in the game. They are a fairly alternative food compared to fish, but they are still in high demand due to their relatively low price. Before buying lots of ingredients, test out the profit by making one tuna potato.
Buy equal numbers of Tuna and corn and Potatoes with butter. Withdraw 14 of each and use one on the other (being careful not to eat it). A menu will pop up to make all of the potatoes. An inventory of 14 takes approximately 20 seconds, so approximately 2,500 potatoes can be made in an hour(banking time and clicking time not included, so realistically, 2000 per hour.
Both potato with butter and tuna and corn have a buying limit of 1,000 per four hours, so only 20-30 minutes of supplies can be bought at once. It is useful to leave in an offer overnight for the ingredients so you can make more at once.
It is strongly recommended to check the live prices on the Grand Exchange before making large investments in any method.
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