As the number of menu items grows, customers gain more choices, but ingredient inventory, preparation work, and kitchen workflow also increase. A restaurant menu review should not rely on sales volume or food cost percentage alone. Each item should be compared by its sales role, contribution margin, and kitchen burden. This makes it possible to protect core items while distinguishing between items that need restructuring and those that should be removed, improving both kitchen operations and profitability.
Classify Each Menu Item’s Role Before Reviewing Sales Volume
Menu restructuring does not begin by mechanically reducing the number of items. First, determine whether each item attracts customers, supports frequent orders and table turnover, or improves average spending per customer and profitability. Some low-order items express the brand’s identity or help customers choose other items, while some high-volume items burden both profitability and operations.
Practical Theory of Restaurant Menu Development, a registered book by author Kang Jong-heon, explains that menu items should not be evaluated solely by their individual food cost percentages. Instead, their contribution to profitability should be assessed through price, margin, sales volume, and order combinations. Not every item needs to generate profit in the same way. Operators should distinguish between items that create profit directly and those that support sales of other items.
Record Both Food Cost Percentage and Contribution Margin
The assessment sheet should first record each item’s selling price, ingredient cost, direct costs incurred with each sale, such as packaging, and the quantity sold. The contribution margin per item can be calculated by subtracting ingredient costs and direct costs from the selling price. Multiplying this amount by the quantity sold makes it possible to compare each item’s total contribution margin for the period. An item with a low food cost percentage may do little to offset fixed costs if it is rarely ordered. By contrast, an item with a relatively high food cost percentage may contribute more to overall profitability if it sells repeatedly and quickly or encourages additional orders.
Ingredient costs should be recalculated using recent purchasing records, actual quantities used, and yields after trimming and preparation. Using an outdated cost sheet can lead operators to reverse which items should be improved and which should be removed. In addition to order frequency, review sides, beverages, and options ordered together, as well as the likelihood of repeat orders to the extent it can be verified. Rather than collecting excessive personal information, it is appropriate to keep consistent records based on data the restaurant can confirm, such as order histories and recurring choices by regular customers.
Cooking Complexity Is a Separate Cost
Even when an item looks profitable on paper, it can increase operating costs if it disrupts workflow during peak hours. Review preparation time, cooking time after an order is placed, the number of work steps, required burners and equipment, whether items can be cooked simultaneously, and variations in quality based on staff skill. Also assess whether front-of-house staff must spend excessive time explaining the item or confirming options. If higher sales slow service and delay other items, the restaurant incurs labor costs and lost table turnover beyond the costs shown on the menu cost sheet.
Ingredient overlap is another important criterion. A low-volume item that shares ingredients with other core items may create relatively little inventory burden. In contrast, if an item requires dedicated ingredients, a separate sauce, or an independent preparation process and is also ordered infrequently, operators should assess its impact on waste, preparation work, and refrigerated or frozen storage. Time spent developing the item or the owner’s personal attachment to it is not sufficient grounds for keeping it.
Use Four Categories: Keep, Improve, Conditionally Keep, or Review for Removal
- Keep: Items with both high sales volume and high total contribution margin should be managed as core menu items. The priorities are reducing quality variation and service time while stabilizing ingredient procurement and standardized recipes.
- Improve: Items that sell well but make a limited contribution to profitability should not be removed immediately. Review whether their price, portion size, ingredient composition, or cooking process can be adjusted. The proportion of high-cost ingredients may be reduced or the item may be redesigned more efficiently, but these changes must not undermine the core value customers expect.
- Conditionally keep: Items with low sales volume should not be removed solely because they sell less if they share ingredients with other items or have a confirmed symbolic role or positive effect on order combinations. However, actual records should verify their branding role and impact on additional orders.
- Improve, then review for removal: For items with low sales volume and low total contribution margin that also require dedicated ingredients and separate processes, first test a reduced offering, consolidation, or changes to the composition. If waste and kitchen congestion do not decrease afterward, the item can be classified as a candidate for removal.
Record, Test Changes, and Measure Again
- Organize order records for a defined period and the latest cost data using consistent standards.
- For each item, record its sales role, total contribution margin, cooking time, work complexity, and degree of ingredient overlap.
- Before removing an item, run limited tests involving price, portion size, composition, process simplification, or changes to its placement on the menu.
- After making changes, continue recording not only sales volume and contribution margin but also order cancellations, service speed, waste volume, customer responses, and changes in kitchen operations.
Set menus should not be created simply by combining popular items or offering discounts. Combine high-margin items with fast-turnover items to simplify customer choices, while confirming that the set does not increase cooking time or labor demands. Removing a menu item should not be an emotional decision. It should be a decision to eliminate inventory and work that the restaurant does not need to carry out.