timrilla";p="57705 (!empty($user->lang['WROTE'])) ? $user->lang['WROTE'] : ucwords(strtolower(str_replace('_', ' ', 'WROTE'))):
You have to have at least one of the appropriate fuels in your inventory. When you bring up the recipe, click change and select the cheap fuel.
but it doesn't seems to be a must. I can craft with the cheapest fuel without a appropriate fuel in my bags.
1cp for a packet of spice, 1cp for a coal, the crafted item npc will only pay 2cp for it ... OMG