Skip to content

How Meal Kit and Meal Delivery Operations Improve Accuracy With Flow Racks

gravity flow racks for meal kit order fulfillment

Key Takeaways

  • Meal kit fulfillment requires a balance of speed, accuracy, and flexibility as recipes, ingredient sizes, packaging, and order volumes continually change.
  • Modular gravity flow solutions like FlowCell and SpanTrack keep inventory organized, visible, and accessible at the pick face, helping reduce wasted motion, improve ergonomics, and make better use of available space.
  • Flexible picking systems deliver measurable results: HelloFresh increased kitting lines from 18 to 28 within the same footprint, while Home Chef reduced pick errors by nearly 38% and improved cycle time with a more adaptable pick line.

Meal kit fulfillment looks simple from the customer’s perspective. A box arrives at the door containing the right ingredients, in the right portions, for the meals selected that week. Behind that box, however, is a complex picking, kitting, and packing operation where accuracy and speed have to coexist with constant change.

Meal kit and meal delivery companies may assemble thousands of kits with different ingredient combinations every day. But every day, week, and even season, recipes change, customer preferences shift, new menu options are added, and ingredient sizes and packaging evolve. At the same time, orders still need to move through the facility quickly and accurately, often within temperature-controlled environments where every square foot of space matters.

This creates a challenging operational balance: the process must be standardized enough to support accurate, repeatable work while remaining flexible enough to accommodate whatever next week’s menu brings. The physical design of the picking, kitting, and packing environments plays an important role in achieving both.

​When it comes to packing stations, small inefficiencies such as excessive reaching, walking, searching, or repositioning products can accumulate across hundreds or thousands of orders. Well-designed workstations address those issues by organizing materials around the work itself and creating a steadier flow through picking, packing, and shipping. For meal kit operations, flow racks can extend those same principles throughout the kitting process by bringing ingredients to the picker, increasing accessible pick faces, improving organization, and making it easier to reconfigure a line as operational requirements change.

flowcell gravity flow racks for meal kit providers

Why Meal Kit Fulfillment Requires Accuracy and Adaptability

Every additional ingredient in a meal kit creates another pick that must be done correctly.

At Home Chef’s Maryland operation, for example, associates prepare approximately 140,000 kits every week. Each meal bag contains between eight and 12 picked items, depending on the customer’s order. Multiplying that activity across multiple recipes, production lines, shifts, and days, even a small inefficiency at an individual pick location can have a significant impact.

Accuracy in this environment isn’t solely a quality-control issue at the end of the line. It starts with the way inventory is presented to the worker. Can the picker immediately see the correct item? Is the product consistently available at the front of the pick face? Are different ingredients clearly organized? Does the employee have to bend, stretch, or search to complete a pick?

A well-organized workstation makes it easier to establish a repeatable process. When materials are visible, organized, and positioned within easy reach, workers spend less time compensating for the workspace and more time completing productive work.

But meal kit operations face an additional challenge: the products moving through that repeatable process rarely stay the same. One week may require a particular assortment of proteins, vegetables, sauces, and dry ingredients. The next could introduce entirely different recipes, portion sizes, or packaging requirements. As companies add more dietary choices and menu variety, the SKU mix presented along the line can change even further.

That means a highly efficient pick line for today’s assortment may quickly become an inefficient line if it cannot be adjusted tomorrow. The goal, then, isn’t to optimize one fixed configuration, but to build a system that supports accurate work while letting the operation adapt.

Two meal kit operations demonstrate what that can look like in practice.

UNEX-HelloFresh-1095

HelloFresh: More Kitting Capacity in the Same Floor Space

As HelloFresh expanded its meal offerings and grew its business, its Special Operations Team looked for ways to add production capacity and speed up kit assembly at its Newark facility.

The existing equipment was creating friction in the process. HelloFresh used wire structures with numerous angles and racks, but products didn’t flow smoothly through the line. Without rollers, workers had to push cartons forward while pickers manually pulled boxes toward themselves. The operation also had to function in a facility maintained at 36°F to keep food fresh, while coordinating the precise combination of ingredients needed for each meal.

HelloFresh tested FlowCell flow racks from UNEX and worked through different roller, rail, and height configurations to create a setup suited to its process. Gravity rollers within the FlowCell structures allowed products to move smoothly toward the pick point rather than requiring associates to reposition cartons by hand continually.

That change affected more than individual picks. It allowed HelloFresh to rethink the physical footprint of the entire operation. After implementing FlowCell, HelloFresh cut the length of its meal-kitting lines in half and increased the number of kitting and assembly lines from 18 to 28 within the same floor space. The company also used SpanTrack carton flow racks to create return lines for empty boxes, making it easier for replenishment personnel to retrieve them. Just as importantly, the new configuration let HelloFresh adjust its operation as recipes changed.

Saving space is valuable, but a dense system that locks an operation into one configuration can create another problem later. HelloFresh increased productive activity within its existing footprint while retaining the ability to adapt the line as its menu changed.

HelloFresh case study cover

Learn how HelloFresh used a custom FlowCell modular flow rack solution to grow from 18 to 28 meal-kitting lines in the same floor space.

DOWNLOAD THE CASE STUDY


Home Chef meal kit with FlowCell modular flow racks

Home Chef: Fewer Pick Errors With a More Flexible Pick Line

Home Chef faced a different version of the same challenge. At its Baltimore-area meal kit operation, associates picked ingredients from bins stored in plastic pipe-and-joint racks. Over time, those racks' limitations became increasingly apparent.

Trays regularly got stuck in the plastic structure instead of conveying smoothly. In the temperature-controlled environment, cold conditions also made the pipes brittle. Storage density was another concern: only six pick items fit in each rack, while the operation wanted to accommodate between nine and 12 bins to create a more efficient pick environment. The pipe structures also could not be readily reconfigured as operating requirements changed.

Home Chef needed a system that could address several problems at once: improve product flow, use space better, support more ergonomic picking, increase accuracy, and adapt as its assortment evolved. The company replaced the pipe-and-joint structures with FlowCell gravity flow racks equipped with SpanTrack rollers.

After initially testing a small number of units, Home Chef expanded the solution at Baltimore and then into several other facilities. Because each location prepares different meal kits, the modular units let teams design configurations around each operation's needs rather than forcing every location into the same setup.

The results at the Baltimore operation were substantial. After installation, Home Chef reported that pick errors decreased by nearly 38%. The more efficient picking environment contributed to a 12% decrease in headcount, while cycle time from the first hand to the last hand on each kit improved by one minute. The more compact racks also held additional inventory while freeing approximately 120 feet of conveyor space.

The change also improved ergonomics. With the previous system, some pick locations were positioned too high or too low for comfortable access. FlowCell units could be raised or lowered to better accommodate associates, and angled product presentation reduced reaching and fatigue. Flexibility remained critical, though. Home Chef’s menu includes a changing mix of low-calorie, Mediterranean, fast, family-friendly, gluten-free, and other meal options. As Continuous Improvement Manager Devin Chavis explained, “Our business is always changing, and the FlowCell units allow us to adapt to variances and be ready for growth.”

Home Chef shows that improving accuracy doesn't have to make a picking operation rigid. In this case, a more standardized, organized physical process actually gave the operation more freedom to change the products moving through it.

Home Chef case study cover

Learn how Home Chef used FlowCell modular flow racks to reduce pick errors by 38% and improve ergonomics across 140,000 weekly meal kits.

DOWNLOAD THE CASE STUDY


What Better Meal Kit Picking Looks Like

Although HelloFresh and Home Chef began with different problems, their experiences point to several principles meal kit and meal delivery operations can apply when evaluating their own picking environments:

  • Bring inventory to the point of use whenever possible. Gravity flow keeps products at the front of the pick face, reducing the need to reach into deep storage, pull cartons forward, or search for inventory.
  • Consider storage density as an operational issue, not simply a warehouse capacity issue. Increasing the number of pick faces within a smaller footprint can shorten lines, reduce worker movement, create space for additional production capacity, and make more SKUs accessible where the work occurs.
  • Ergonomics and accuracy are closely connected. A pick location with clear sightlines and products within a comfortable reach zone makes it easier for workers to perform the same task consistently throughout a shift. Packing stations should be designed to reduce bending, twisting, reaching, walking, and other unnecessary motion, creating a more productive and sustainable workflow.
  • Design for change. Meal kit companies sell variety. That means operational variability is unlikely to disappear. Pick locations, ingredient sizes, packaging, volumes, and workflows will evolve as the product offering evolves. The physical infrastructure should evolve with them.


The right flow rack system can put these principles into practice by improving product presentation, reducing wasted motion, maximizing available space, and adapting as SKUs and workflows change. UNEX offers several solutions designed to help meal kit and meal delivery operations create flexible, efficient product flow.

Flow Rack Solutions for Meal Kit and Meal Delivery Operations

Meal kit and meal delivery operations need storage and picking systems that support accuracy today without limiting how the operation can change tomorrow. UNEX solutions improve product flow, present inventory more efficiently to workers, and make better use of available space while giving operations the flexibility to adjust as menus, packaging, and volumes evolve.

FlowCell Modular Flow Racks

flowcell-kitting-station-circleFlowCell is a modular flow rack system designed for picking, kitting, assembly, and lineside applications. For meal kit operations, its value comes from creating organized, ergonomic pick points that can be adjusted as ingredient mixes and workflows change.

Because FlowCell can be configured around the needs of a specific operation, it helps facilities build a more consistent picking process without locking themselves into one permanent layout. That same flexibility played an important role in both the HelloFresh and Home Chef applications.

  • Modular, reconfigurable construction lets you adjust levels and components as ingredient sizes, recipes, and pick requirements change.
  • Product can be angled toward the worker to reduce reaching and create a more comfortable pick point.
  • FlowCell is designed to increase storage density and keep more inventory accessible within the active work area.
  • Rear replenishment and return-lane configurations can help maintain flow without interfering with picking at the front of the rack.

SpanTrack Carton Flow

UNEX-SpanTrack-WheelBed-Circle-1SpanTrack creates gravity-fed carton flow within FlowCell or existing pallet rack, keeping products moving toward the pick face as inventory is removed. In meal kit environments, that can reduce the manual handling, searching, and repositioning that slow high-volume picking.

SpanTrack is also available in configurations that support different types of slotting strategies, making it useful for operations where some ingredients remain relatively consistent while others change frequently.

  • Gravity flow continuously brings cartons or totes forward, helping workers access inventory without reaching deep into the rack.
  • Rear replenishment and front picking help maintain first-in, first-out product flow, an important consideration in food-related operations.
  • Wheel-bed configurations provide greater left-to-right flexibility for reslotting as ingredient locations or packaging sizes change.
  • SpanTrack is freezer- and cooler-rated, making it suitable for operations handling fresh and perishable products.

Gravity Conveyor

gravity-conveyor-circle-2Gravity conveyor can complement flow racks by helping workers move cartons, totes, and completed kits between picking, assembly, packing, and other processes with less manual carrying.

For meal kit operations, this can help create a more continuous workflow between stations and reduce unnecessary worker movement, especially where high order volumes require product to move steadily through several steps.

  • Gravity helps move cartons or totes between work areas without requiring workers to carry or push them long distances.
  • Conveyors can help connect picking, kitting, packing, and shipping processes into a more continuous flow.
  • By bringing product closer to the next task, conveyors can reduce walking and other non-value-added movement.
  • Multiple widths, lengths, supports, curves, and other options allow conveyor layouts to fit the available space and process requirements.

Build More Flexible, Efficient Meal Kit and Meal Delivery Fulfillment Operations

Meal kit operations will continue to face a combination of high customer expectations and constant product variability. Recipes will change, assortments will expand, and volumes will fluctuate. Meanwhile, new dietary preferences, packaging formats, and fulfillment requirements will continue to influence the operation. The answer isn’t to eliminate that variability, but to create a fulfillment environment that can absorb it.

Flow racks help establish a repeatable physical process by keeping inventory organized, visible, accessible, and moving toward the picker. At the same time, modular configurations give meal kit operations room to adjust when products, volumes, or workflows change.

HelloFresh used that flexibility to increase its number of kitting lines from 18 to 28 without expanding its floor space. Home Chef used it to reduce pick errors by nearly 38% while improving cycle time, ergonomics, and storage density. For meal kit and meal delivery companies, the most important measure of an effective picking system may not be whether it is perfectly optimized for today’s menu, but whether it can execute today’s menu accurately and efficiently while staying ready for whatever comes next.

Contact UNEX today to learn how FlowCell, SpanTrack, and other dynamic solutions can help your meal kit or meal delivery operation improve picking accuracy, maximize available space, and adapt more easily as menus, volumes, and customer demands change.

Build a space-saving flow rack solution in minutes with our FREE design tools