Laboratory efficiency depends on more than experimental procedures and equipment performance.
Even a well-planned experiment can be delayed when essential supplies are unavailable. A missing box of pipette tips, the wrong type of tube, or an unexpected shortage of plates can interrupt work, force researchers to search for alternatives, and create urgent purchasing requests.
For procurement teams, preventing stockouts is not simply a matter of keeping more products on the shelf. It requires a clear understanding of usage, lead times, ordering rules, and communication with laboratory personnel.
In this article, we explore five practical ways to improve laboratory supply management and help keep research workflows moving.
1. Understand Actual Supply Usage
A reliable inventory plan begins with understanding how supplies are actually used.
Order history can provide useful information, but it does not always reflect current laboratory demand. Consumption may change depending on project schedules, experimental volume, staffing, or the introduction of new protocols.
Frequently used consumables such as pipette tips, tubes, and plates should be reviewed regularly to determine:
-
How quickly each product is consumed
-
Which teams or experiments use it
-
Whether usage changes during certain projects
-
Whether demand is expected to increase
-
How often emergency orders occur
Looking only at past averages may not be enough. Procurement teams should also consider upcoming experiments and planned increases in activity.
A sudden increase in usage is much easier to manage when it is known in advance.
2. Set Clear Reorder Points
A rule such as “order more when stock is running low” leaves too much room for interpretation.
One person may consider two boxes to be sufficient, while another may wait until the final box is opened. Without a shared standard, ordering decisions can become inconsistent.
A reorder point provides a clear trigger for placing the next order.
For example, if a laboratory uses one box of pipette tips per week and delivery normally takes two weeks, placing an order only after opening the final box may already be too late.
The reorder point should reflect:
-
Average usage
-
Expected delivery time
-
Possible increases in demand
-
A reasonable amount of safety stock
The goal is not to eliminate every possible risk, but to create a practical rule that can be followed consistently by both laboratory and procurement teams.
3. Consider Lead Times and Supply Risks
Not all laboratory supplies can be managed in the same way.
Some products may be available for immediate shipment, while others may require longer production, import, or delivery periods. Special-order products may also have minimum order quantities or limited availability.
Procurement teams should record important supply information such as:
-
Standard lead time
-
Minimum order quantity
-
Packaging and case quantities
-
Supplier holidays
-
International shipping requirements
-
Availability of alternative products
-
Storage conditions
-
Expiration dates
Longer lead-time products generally require earlier ordering and a larger inventory buffer.
However, keeping excessive stock can also create problems, including limited storage space, expired products, and unnecessary purchasing costs.
The best inventory level is not simply the largest possible quantity. It is the amount that balances supply security with practical storage and usage conditions.
4. Standardize Product Information
Stockouts are not the only issue that can interrupt laboratory work. Ordering the wrong product can cause a similar delay.
Requests such as “please order the usual tips” may be clear to the person making the request, but they can create uncertainty for purchasing staff.
A standardized product list can reduce confirmation work and help prevent ordering errors.
Useful information may include:
-
Product name
-
Manufacturer
-
Product number
-
Volume or size
-
Material
-
Sterile or non-sterile status
-
Packaging quantity
-
Laboratory or department using the product
-
Approved supplier
-
Acceptable alternative product
This information is especially valuable when several similar products are used in the same laboratory.
It also makes repeat orders easier and reduces confusion when purchasing responsibilities are transferred to another team member.
5. Improve Communication Between Laboratory and Procurement Teams
Procurement teams cannot prevent every stockout without information from the people using the supplies.
Researchers should communicate changes that may affect demand, especially when:
-
A new project is beginning
-
A large experiment is scheduled
-
A protocol is changing
-
A product will be used more frequently
-
An alternative product is no longer acceptable
This does not necessarily require additional meetings or complicated systems.
Simple practices can make a significant difference. Teams may record when the final unopened box is opened, maintain a shared ordering list, or update product information whenever a specification changes.
The most effective system is one that is easy to use and consistently maintained.
Preventing Stockouts Without Creating Excess Inventory
Preventing laboratory stockouts does not mean storing large quantities of every product.
A more effective approach is to understand actual usage, account for delivery time, establish clear reorder points, and maintain accurate product information.
When laboratory and procurement teams share the same information, purchasing can become more predictable and emergency orders can be reduced.
Start with the supplies that are used most frequently or have the greatest impact when unavailable.
Even small improvements, such as setting a reorder point for pipette tips or creating a standardized product list, can help reduce interruptions and support smoother laboratory workflows.
WATSON offers pipette tips, tubes, plates, and other laboratory consumables for a wide range of everyday research applications.
Clear product numbers, specifications, and packaging information can help procurement teams identify the appropriate supplies and manage repeat orders more efficiently.