When procurement teams select WIP boxes, the first consideration that usually comes to mind is the price per unit. This is understandable, because price is the easiest figure to compare between suppliers. However, the purchase price represents only a small portion of the total cost that a factory actually bears throughout the entire period the box is in use.
Other costs are scattered across various departments, from production and warehousing to QA/QC and maintenance, and they almost never appear as clearly defined line items in purchasing reports. As a result, operational waste continues to occur without the true sources ever being clearly identified.
Let’s take a closer look at the types of hidden costs that most commonly arise from the use of WIP boxes in food and beverage factories, and how to identify them before their impact spreads further.
What Are WIP Boxes and Their Role in F&B Factory Operations?
A Work in Progress (WIP) box is a container used to hold, move, and store products or raw materials that are still in the production process, before they are completed and proceed to the final packaging stage.
In food and beverage factories, WIP boxes play a role at nearly every point in the production flow. From raw material receiving and processing to QA inspection stages and queues before packaging, these boxes continuously change hands, passing through various temperature conditions, humidity levels, and handling intensities.
Why Are the Hidden Costs of WIP Boxes Often Overlooked?
The main issue lies in how this product is typically evaluated. Procurement teams tend to compare boxes based on a single figure: the price per unit. In reality, however, hidden costs in packaging operations can account for 20–30% of the total packaging cost overall.
These hidden costs are difficult to detect because the expenses are not consolidated in a single place. For example, the cost of replacing damaged boxes appears in procurement reports, lost production hours when a box suddenly cannot be used are recorded as downtime, and findings from QA audits are documented separately within the quality department.
Each department only sees a small piece of the same problem. No one connects it back to the root cause: the quality of the WIP boxes being used.
Types of Hidden Costs from WIP Boxes That Most Commonly Occur
1. Excessive Replacement Costs
WIP boxes made from materials that are easily damaged can quickly become dented, cracked, or broken at the corners and walls after only a few uses. Each time this happens, the box has to be replaced.
A single replacement may not seem significant. However, if one box needs to be replaced 3–4 times a year, the total replacement cost can end up exceeding the price difference between a cheaper box and a more durable one from the start.
Boxes that are no longer fit for use but have not yet been discarded can also become a burden. The write-off costs from this type of inventory can reach 3–5% of total annual material expenses. In F&B factories that operate hundreds to thousands of boxes every day, that percentage is significant and difficult to ignore.
2. Production Downtime Caused by Damaged Boxes
If, in the middle of a production shift, a box suddenly cracks and can no longer be used, the operator has to stop, find a replacement, and adjust the workflow. If a replacement is not immediately available, the production line may also have to stop and wait.
Incidents like this are often considered normal. However, if they occur several times a month, the total time lost becomes quite significant when calculated.
3. Contamination Risk and Quality Costs
WIP boxes come into direct contact with food and beverage products that are still in process. If the box surface is porous, has small cracks at the corners, or is made from materials that are difficult to clean thoroughly, it can become an entry point for contamination.
If contaminated products make it all the way to the final packaging stage, the impact can be significant. The products may have to be discarded, an internal investigation must be conducted, and if the issue is detected during a certification audit, the risk can become far more serious than just the loss of that batch.
Beyond contamination risks, longer cleaning times caused by impractical box designs also count as hidden costs. An additional hour spent on sanitation per shift, multiplied by the number of boxes and the cleaning frequency in a month, can quickly add up to a significant figure.
4. Storage and Internal Logistics Inefficiencies
WIP boxes with inconsistent dimensions across units are difficult to stack neatly in storage. As a result, more space is used than necessary. Boxes that cannot be stacked stably also require more careful handling during movement, which takes more time and increases the risk of falling or being damaged.
Inefficient material handling and poor storage layout also increase labor costs and raise the risk of damage. In factories with high production volumes, small inefficiencies that occur repeatedly every day can accumulate into significant waste over the course of a year.
5. Disposal Costs and Sustainability
Boxes with a short service life generate a higher volume of waste. Beyond the disposal costs themselves, there is also increasing regulatory pressure and stricter sustainability standards in the F&B industry, particularly for factories that export or partner with large brands. Boxes that cannot be recycled or require special handling for disposal add costs that are often not included in the initial calculations.
Impact of Hidden Costs on Total Cost of Ownership
The simplest way to understand the impact of hidden costs is by comparing the two scenarios below.
Scenario A:
The factory purchases WIP boxes priced at IDR50,000 per unit, with an average service life of 6 months, a cleaning time of 15 minutes per unit, and a box-related downtime frequency of twice per month.
Scenario B:
The factory purchases WIP boxes priced at IDR80,000 per unit, with an average service life of 24 months, a cleaning time of 5 minutes per unit, and almost no box-related downtime.
Over a 24-month period, Scenario A requires four repurchases per unit. The total purchase cost alone already reaches IDR 200,000, excluding downtime costs, cleaning time, and potential quality-related expenses.
This is what is meant by Total Cost of Ownership (TCO).
Signs That WIP Boxes in Your Factory Are Creating Hidden Costs
Several indicators to watch for:
- The rate of box damage is high, and replacement purchases are made too frequently.
- There is always a stock of “emergency spare boxes” because the main boxes often suddenly become unfit for use.
- Cleaning time per unit is long and becomes a bottleneck in the sanitation schedule.
- The boxes are not compatible with the dimensions of the production line or storage racks, requiring manual adjustments.
- Hygiene or QA audits frequently find issues in the corners, joints, or surfaces of the boxes.
If two or more of the indicators above feel familiar, there is a strong possibility that the WIP boxes currently in use are already creating hidden costs. A more detailed guide on this topic can be found in the article on common mistakes in choosing WIP boxes..
How to Identify Hidden Costs Before It’s Too Late
1. Start Tracking
Evaluate the box’s lifecycle, track the frequency of replacements per month, and record every production downtime incident related to the box’s condition. This data will reveal the sources of hidden costs.
2. Conduct a Cleaning and Sanitation Ease Audit
How many minutes does it take on average to clean a single box? Are there areas that are hard to reach and could become potential contamination points?
3. Conduct a Cross-Department Cost Review
Involve procurement, production, and QA simultaneously. As long as these three departments never sit together to discuss costs related to WIP boxes, hidden costs will continue to remain scattered across their individual department reports.
Principles for Choosing WIP Boxes That Are More Cost-Efficient in the Long Run
Some criteria to consider in the evaluation, beyond just the purchase price, include:
- High material durability to ensure a long service life and low replacement frequency.
- Hygienic and easy-to-clean design, with smooth surfaces and no gaps where dirt or bacteria can accumulate.
- Optimal stackability to make storage more efficient and reduce the risk of damage when stacked.
- Consistent dimensions across units for compatibility with production lines and storage systems.
- Food-grade certification as proof that the material is safe for contact with food and beverage products.
- Supplier reliability in terms of stock availability and consistent quality across shipment batches.
For specific needs such as frozen food products, the material and design considerations for WIP boxes have additional parameters, which are discussed in more detail in the article on frozen food WIP boxes.
Conclusion
WIP boxes are operational assets that play a central role in the production flow, not merely routine purchase items that can be evaluated solely based on unit price.
The hidden costs of WIP boxes will not appear on any report by themselves. What is visible are the symptoms: increased downtime, longer cleaning times, and more frequent box replacements than usual.
If no one actively tracks and connects these symptoms to their root cause, the hidden costs will continue accumulating without ever being properly calculated.
Therefore, implement lifecycle tracking, conduct regular sanitation audits, and perform cross-department reviews to start seeing the full picture before these costs escalate into bigger problems.
If you need WIP boxes made from food‑grade PP corrugated board that are designed for long‑term operational efficiency, ALVAboard is the one of the local WIP boxes manufacturers that can serve as a reference.
ALVAboard WIP boxes are made from premium polypropylene, making them waterproof, mold-resistant, impact-resistant, and able to withstand heat up to 130°C. The boxes can be used hundreds of times, come in several color variants, and feature corner accessories for stable stacking.
Want to learn more about ALVAboard WIP boxes? Reach out to the ALVAboard team now via WhatsApp!
