The player should use any type of food on Lurgon to find out a selling price. Use the price Lurgon gives you as a guide. Generally, if the gourmet has a neutral response, sell the food for around the price Lurgon gave you. If it's a negative response, try lower, and if it's a positive response, you can try higher. The same gourmet won't buy food from the player twice in a row.