How to Keep Filament Dry: Ultimate Guide To Drying 3D Filaments

If you’re like most 3D printer owners, you know the importance of keeping your filament dry. Wet filament can cause all sorts of problems, such as clogs and poor prints. In this blog post, we will discuss some tips for how to keep filament dry. We’ll also provide a guide on how to store your filament in a moisture-free environment. So, whether you’re just starting out with 3D printing or you’ve been doing it for years, read on for some essential tips on keeping your filament dry!

If you are new to 3d printing, you may be wondering how to keep filament dry. There are a few different methods that can be used, and the best method for you will depend on the type of filament you are using and the equipment you have available. One common method is to use a food dehydrator. Simply place your filament in the dehydrator and set it to the appropriate temperature. Other options are to use an oven, vacuum bags or a dry box although this can be more difficult to control the temperature. If you are using a PLA filament, you can also place it in the sun or use a hairdryer on the low setting. Whichever method you choose, make sure to monitor your filament closely to prevent it from overheating.

There are a few popular filament-drying products on the market that can be used to dry out wet filament. These include Filament Dryer, Filament dehydrator Vacuum Bags, Storage box. etc. There are also a few DIY solutions that can be used to dry out wet filament. Let’s explore them in this blog below:

Why is keeping filament dry important?

If your filament is not dry and gets wet, it can absorb moisture from the air and become brittle, which will reduce its quality and make it difficult to print with. In addition, wet filament can also lead to clogs in your printer nozzle, which can be a real pain to deal with. So why is keeping your filament dry so important? Well, for one thing, it helps to maintain the quality of your filament. In addition, it also prevents clogs and makes your printer run more smoothly overall. So if you want to get the most out of your 3D printer, be sure to keep your filament dry!

5 Ways to Keep Filament Dry

1. Vacuum Bags

Storing your 3d filament in vacuum bags is a great way to keep it fresh and free from dust and dirt. Vacuum bags will also protect your filament from moisture, which can cause it to become brittle and break. To store your filament in a vacuum bag, simply place the spool of filament inside the bag and seal it tight. Then, using a vacuum cleaner, remove all the air from the bag. Your filament will now be stored in a dry, protected environment that will prolong its lifespan. When you’re ready to use your filament, simply open the vacuum bag and remove the desired amount. Then reseal the bag to keep the rest of your filament fresh until next time.

There are 2 different types of Vacuum Bags as below:

i) The SUOCO 6-Pack Vacuum Storage Bags are the perfect way to store your filament and keep it in pristine condition. The bags are durable and reusable, and the double-zip and triple-seal turbo valve seal ensures that your filament will be well-protected from moisture and air.

The pump is also great to use while traveling, as it can be easily connected to a standard vacuum cleaner for speed. With the SUOCO 6-Pack Vacuum Storage Bags, you can be sure that your filament will be well-protected and ready to use when you need it.

ii) The Vacbird Vacuum Storage Bags with Electric Pump is a great way to store your 3d Filaments.  The storage bags are made of durable material that is resistant to tears and punctures.

The electric pump is easy to use and can be used to vacuum seal the bags in seconds. The bags are resealable and can be reused multiple times. The small and medium size bags are perfect for storing 3d printer filaments. The large bag is perfect for storing items in your attic or garage.

The Vacbird Vacuum Storage Bags with Electric Pump is a great way to save space and keep your other belongings such as comforters, blankets, clothes clean, moisture and dust-free.

2. DIY Filament Dry Box

Dry Box is one of the ways to protect your filament from moisture. A dry box is simply a container with a tight-fitting lid that keeps out moisture. You can buy a commercial dry box, or you can make your own DIY version.

How to make a filament dry box?

To make a DIY filament dry box, you’ll need a plastic storage container, a package of silica gel desiccant packets, and some sort of power adapter that can plug into an outlet (to provide power for the heating element).

  • Cut a hole in the lid of the storage container big enough to fit the power adapter.
  • Then, glue the power adapter to the inside of the lid using hot glue or another type of adhesive.
  • Next, place the desiccant packets inside the container. Finally, plug in the power adapter and close the lid.

Your DIY filament dry box is now ready to use. Simply store your 3D filament spools inside, and they will be protected from moisture.

3. 3D Filament Box:

Even the best 3D printers can produce subpar results if the filament isn’t properly dried beforehand. If you want to ensure that your prints are of the highest quality, it’s important to invest in a 3D filament box.

These boxes are designed with a heating and drying mechanism that will safely dry your filament without damaging it. Simply set the temperature and heating time, and the box will do the rest.

You can also rest assured that your filament will be protected from high temperatures, ensuring that it stays in good condition for future use. With a 3D filament box, you’ll be able to produce prints that are of the highest quality.

These boxes are designed specifically to protect filament from moisture, and they come with a built-in dehumidifier to further reduce the risk of moisture damage. Plus, they’re easy to use and relatively affordable, making them a great option for anyone who wants to keep their filament in top condition.

SUNLU Filament box

One of the filament box option is SUNLU filament Box. The SUNLU Filament Dryer is a necessary tool for any 3D printer user. It not only keeps your filament from tangling, but also prevents it from absorbing moisture from the air.

The dryer has a control panel that allows you to set the temperature and drying time. The display will show the current temperature and time remaining. The door is made of tempered glass, so you can see the filament as it dries. The dryer also features a filament guide, so you can feed the filament through the dryer without tangling it.

There is a power cord wrap and an exhaust port on the back of the dryer, so you can keep everything tidy. The filament dryer comes with a one-year warranty.

Yodelbox 302-3D Printer Filament Box

The Yodelbox 302-3D Printer Filament Box is a spool dispenser and dry storage container holder that is perfect for any 3D printer enthusiast. The box comes with two removable trays that can hold up to three standard spools of filament, and the trays are designed to keep the filament from tangling.

The box also features a built-in desiccant pack that helps to keep the filament dry and free from moisture. In addition, the box has a clear lid that allows you to easily see when a spool needs to be refilled.

The Yodelbox 302-3D Printer Filament Box is an essential accessory for any 3D printer, and it is sure to help you maintain a tidy workspace.

4. Using Oven / Food Dehydrator

4.1) Oven

One of the most popular methods for drying 3D printer filament is to use an oven. This method is quick and efficient, and it can be easily scaled up to large quantities of filament. However, there are some significant drawbacks to using an oven to dry filament.

First, ovens can overheat filaments, causing them to become brittle and more prone to breaking. Second, ovens can introduce dust and other contaminants into the filament, which can clog the nozzle and damage the print quality.

Finally, ovens can be a fire hazard if they are not used properly. For these reasons, it is important to weigh the pros and cons of using an oven to dry 3D printer filament before making a decision.

4.2) Food Dehydrator:

One easy way to dry your filament is to use a food dehydrator. Just put your spool of filament in the dehydrator and set it to the appropriate temperature. In no time at all, your filament will be bone-dry and ready to use. Best of all, this method is much less expensive than buying a dedicated filament dryer. So if you’re looking for an easy and inexpensive way to keep your 3D printer running smoothly, give Presto 06300 Dehydro Electric Food Dehydrator a try.


There are many different types of Filament dry boxes on the market, but not all of them are created equal. Some are more expensive than others, and some don’t have all the features you need. That’s why we’ve put together this list of the best Filament dry boxes available, so you can find the perfect one for your needs.

  1. Filament Box Deluxe by Katamco
  2. PolyBox 2 by PolyMaker
  3. eBox by eSun
  4. PrintDry vacuum sealed filament container

Can 3D Printer Filament Get Too Dry?

While it is true that dried out filament can lead to problems with extrusion and printing quality, it is relatively rare for filament to become too dry. However, if you are noticing that your filament is becoming brittle or breaking easily, it may be time to take steps to prevent further drying.

If you notice that your filament has already started to dry out, there are a few steps you can take to try and revive it.

First, try soaking the filament in warm water for a few hours. This can help to rehydrate the filament and make it more flexible. If this doesn’t work, you may need to replace the dried-out portion of the filament with a new spool. With a little care, you can avoid any problems associated with dried filament.

Is Drying Filament in Microwave Safe?

There are a number of ways to dry filament, but one method that you should never use is the microwave. Microwaves can cause uneven heating, which can damage or melt your filament. Additionally, microwaves lack the prolonged temperature control that is necessary for proper drying.

Finally, microwaves tend to evaporate water very quickly, which can leave your filament brittle and prone to breakage. For all these reasons, it’s best to avoid drying your filament in a microwave.

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