How to share the material preparation and meal delivery windows for mass production of group meals and temporary replenishment of orders

The big pot is responsible for stabilizing demand, and the small pot is responsible for filling orders, which is just the starting point of scheduling. If both parties take away the same ingredient at the same time, or compete for the person who puts the plate after the order is reached, adding more pots may still delay the entire order. A feasible double queue should allocate raw materials and personnel first, then agree on the deadline for replenishment orders, and finally converge on the delivery order, rather than pouring two pots of food directly together.

Cambro's article on improving efficiency when staffing is lacking suggests ideas for reducing repetitive handling, handling and cleaning. [1] For group meals, this inspiration can be transformed into checking the duplication of work between the two production lines, but the product case in the original article cannot prove the batch capacity of this kitchen. This article discusses a scheduling method that does not use the single weight of a certain piece of equipment as the planned output, nor does it add up the nominal values ​​of different pots.

There are two levels of certainty in an order

First look at when the demand becomes credible. For fixed packages whose quantity and delivery time have been confirmed, batches can be planned in advance; for additional dishes, trial production, or replacement items that may still be increased or decreased, a position for later decision-making needs to be reserved. The same dishes may enter different queues in different scenarios. You cannot simply label each dish as a "big pot dish" or "small pot dish" permanently.

For example, assume that a catering site confirms that it needs a hundred set meals, and may add several additional dishes at the same time. Confirmed packages, unconfirmed requirements, and finished products that have been completed but not yet delivered should be recorded separately. The former is a production task, and the latter two are forecast and physical status respectively; mixing them into a "total demand" will result in repeated inputs or overproduction.

Diversion is also subject to dish craftsmanship. Whether a small amount of addition can be completed by another pot must be verified for loading, operation, finished product texture and corresponding food safety conditions. A small pot cannot be automatically assigned just because the quantity is small. If the same recipe requires different operations after changing the batch size, the confirmed batch version should be used to avoid scaling all settings on site.

Reserve raw materials first, and then let both sides start work

The shared stock allocation area needs to be able to distinguish allocable inventory, reserved unused quantities and claimed quantities. The reservation does not mean it has been consumed, and its use does not mean it is a qualified finished product. Only by separating the three states can we know how much materials can be used for temporary replenishment orders, instead of thinking that we can take them away when we see a box on the shelf.

Assume that twelve boxes of a certain raw material are available, eight boxes have been reserved for large batch tasks, two boxes have been reserved for small batch tasks, and two boxes have not yet been allocated. When temporary demand requires three boxes, the gap is one box, and a large number of eight boxes that have not been taken out cannot be counted as spare again. The number of boxes here is only to explain the inventory status. Actual use must still be identified according to batches, specifications and food conditions. Packaging with different weights cannot be regarded as the same unit.

When it is really necessary to transfer the reserved quantity, the affected production tasks should be updated first, and then let the picking personnel execute it. Only write down "Borrow a box" on the small batch side, and the large batch side will still start as planned, and the conflict will not appear until after startup. The task adjustment must at least clearly state who approved it, how the original order will be replenished, whether the delivery time will be changed, and how the receipt record will be related to the original batch.

Preparation containers should have clear material and usage information, but labels do not replace actual storage management. The China Institute of Standardization's interpretation of the general hygienic standards for catering involves the separation and storage labeling requirements for raw materials, semi-finished products and finished products. [2] The production schedule must comply with these requirements, and the due distinction cannot be destroyed in order to facilitate the retrieval of materials from the two lines.

The timetable contains preparation conditions, not just the hot spots.

An example of an unexecuted schedule is given below. Taking the agreed delivery time as the zero point, the time in the table is only used to show the sequence relationship, not the cooking time, food waiting limit or equipment capacity statement. Real projects should be refilled using the proven craftsmanship and on-site time consumption of this dish.

Relative delivery time	Stable task queue	Order filling queue	common resource arrangements
Thirty minutes in advance	Check fixed orders and material reservations	Summarize unconfirmed requirements	Check containers, labels and delivery personnel
twenty minutes early	Start production according to this dish plan	Determine the acceptable range of supplementary orders	Unrecorded transfer of reserved materials is prohibited
ten minutes early	Continuously record batch completion status	Close the new entry of this window	Check whether the subassembly position can be taken over
Arrive at delivery time	Submit corresponding batch and release information	Submit completed projects	Verify according to order, no mixing of food batches

The actual time consumption is different. You can move the node as a whole, but you cannot keep the original delivery commitment while adding tasks to the replenishment queue indefinitely. The deadline for replenishing orders should be determined by the remaining processing capacity and delivery conditions, rather than being temporarily implemented until the operator calls out. As for subsequent demands, you need to reconfirm the delivery arrangement or reject this commitment.

The parallel operation of two pots does not mean the parallel movement of people. If both sides need an employee to take over at the same time, they should stagger the situation in advance or configure a qualified replacement. Necessary checks, cleaning, and exception handling also consume resources. The timeline should show these intersections rather than drawing two ideal lines that do not interfere with each other.

Delivery people also need to see queue updates. If the replenishment order is cancelled, the corresponding food preparation label and delivery quantity should be canceled promptly to avoid the kitchen having stopped production and the packing end still waiting for the food. Keeping the reason for cancellation can distinguish changes in demand from unfinished production.

What is merged is the order information, not the food identity.

A delivery order can be associated with multiple production batches; multiple batches entering the same delivery window does not mean that mixing of food is allowed. Food delivery personnel need to know the dishes, batches, status and destination of each container, and be able to find the affected area when a problem is discovered. Order approval and food release are two separate actions, and the former cannot replace the latter.

If one of the batches has not yet met the corresponding release conditions, it should not be hidden in the completed quantity. Delivery can be adjusted, items confirmed to be available can be replaced, or handled by authorized personnel in accordance with the applicable system; which one is adopted depends on the status of the food and service conditions and is not approved by the scheduler itself. Mixing, diversion or reprocessing of different batches cannot be justified on the basis that they are all the same dish.

When a large batch is completed first and a small batch is not completed, the actual waiting and control methods should be recorded. The agreed delivery time on the menu cannot be used here to infer that the food has been properly controlled at all times. The relevant records come from the actual process, and the unconfirmed parts are kept as unknown and upgraded according to the system, rather than making up a seemingly continuous timeline.

When scheduling fails, first find the step that is commonly occupied.

You can review the order from the latest completed order forward: are you waiting for materials, pot positions, trays, labels, or transportation? If the batch continues to be on time but the entire order is delayed, continuing to increase the batch weight of the batch may not be useful. On the contrary, if small batches often occupy material preparation and cleaning personnel, the scope of replenishment orders should be reduced or the order of entry should be adjusted, rather than just requiring small pot operators to speed up their actions.

The remaining amount should also be distinguished by status. Unopened raw materials, received unused materials, cooked food and returned food cannot be combined into one number that can be restocked. Its destination is determined by the corresponding food management procedures. Scheduling improvement focuses on which uncertain needs lead to overdoing, and subsequent disposal costs cannot be deleted from the results.

When preparing to introduce new equipment, additional data gaps are listed: applicable loading, permitted processes, energy interfaces, cleaning and maintenance requirements for the same model and configuration. Without corresponding data, we will not publish a conclusion on how many menus can be completed in a certain weight or volume range. Engineering conditions such as gas and kitchen exhaust must be confirmed based on equipment documents and on-site by personnel with corresponding abilities and qualifications. Dining drills can only test the work organization and cannot replace engineering verification.

A dual queue that is truly worth retaining should make fixed tasks more stable and clearly indicate when temporary needs can be accepted and when they must be rescheduled. The effect should be observed from the overall order on-time status, material contention, exceptions and margins together, rather than using the sum of the specifications of two equipment to create a kitchen capacity number.

References

• Cambro How to Increase Efficiency While Your Restaurant is Short-Staffed
• Interpretation of the China National Institute of Standardization’s GB31654-2021 General Hygienic Standards for Catering Services