The importance of storing PLA filament for the quality of the filament and successful 3D printing cannot be overemphasized. When PLA filament absorbs moisture, it leads to printing defects like bubbling, poor adhesion, or brittle layers. To avert such issues, it is wise to store the filament properly. In this tutorial, we shall discuss how to best store PLA filaments and protect them from moisture, dust, and other damaging factors.

- Why is Storage of PLA Filament Important?
- When to Store PLA Filament Not in Use
- Storing PLA Filament in an Airtight Container
- Vacuum-Seal Your Filament
- Using a Dry Box for Filament Storage
- Controlled Environment
- For Wet Filament, a Filament Dryer
- How to Properly Store PLA Filament for Long-Term Use
- Conclusion
Why is Storage of PLA Filament Important?
Before delving into how to store filament PLA, it is vital to understand why proper storage matters. PLA absorbs moisture and presents possibilities of damaging print quality or even filament quality. Here are some significant reasons to properly store PLA:
- Prevention from Moisture Absorption: Steam generated by moisture-laden PLA filament during printing enhances the likelihood of nozzle clogs and temperature variations in the deposit.
- Stable Print Quality: Dry filament leads to smooth extrusion, better layer adhesion, and shiny final print.
- Longer Shelf Life: You can make your filament last for months or years in ideal conditions.
When to Store PLA Filament Not in Use
For filament longevity, storage is important. The best ways to keep your filament dry for use are mentioned below:
Storing PLA Filament in an Airtight Container
Storing PLA in airtight containers really is the best way to avoid exposure to humidity. Containers supplied with airtight seals would block air and moisture from gaining access to the filament. If room is available, use silica gel packs inside to absorb any remaining moisture.
Vacuum-Seal Your Filament
For long-term storage, vacuum sealed treatment works well. Specialized vacuum-seal bags take care to uphold an air-tight environment and keep moisture away from the filament. If you switch filaments more often, consider reusable vacuum-sealed containers.
Using a Dry Box for Filament Storage
A dry box provides an optimum storage solution for 3D printer filament. Thus it provides a low humidity environment while granting access to the filament for immediate use. Some dry boxes even allow printing from the box.
Controlled Environment
The conditions under which PLA filament is stored play an equally important role in its longevity. PLA filament should always be stored in a cool, dry environment, away from direct sunlight and temperature extremes. A room with stable humidity of 50% and below is ideal.
For Wet Filament, a Filament Dryer
When moisture has affected your filament, you can restore it with the help of a filament dryer. This type of device would maintain the filament at a low temperature that loses any absorbed moisture, making it able to be printed with again.

How to Properly Store PLA Filament for Long-Term Use
Store filaments way mentioned under these best practices long-term:
Use sealed bags or containers with desiccants for storage.
Periodically examine the filament for signs of moisture damage (brittleness, rough texture).
If possible, store either in a humidity-controlled environment. Adopting the foregoing techniques will not only extend the lifespan of your filament but will also ensure consistent printing quality.
Conclusion
Knowing how to store PLA filament when not in use is important to keep the filament intact for perfect 3D prints. Airtight containers, vacuum-sealing, dry boxes, and filament dryers can be used to protect your PLA against moisture and other damaging factors. These best storage practices can save your filament from moisture and other damaging factors, whether you are an occasional hobbyist or a professional.