How to Dry PLA Filament : Ultimate Guide

One way to dry your PLA is to dry it in an oven at a low temperature. Simply preheat your oven to between 40 and 45 degrees Celsius and place your PLA on a baking sheet. Bake for 4-5 hours, or until the PLA is dry to the touch. Another option is to use a specialized filament dryer. These devices use heat and forced air circulation to quickly remove moisture from PLA filaments. Filament dryers are relatively expensive, but they can be a worthwhile investment if you do a lot of 3D printing. Finally, you can also use your 3D printer’s heat bed

PLA filament is a popular 3D printing material because it is biodegradable and has a low melting point. However, PLA filament can be prone to moisture absorption, which can cause problems during the printing process. In this blog post, we will discuss how to dry PLA filament properly so that you can avoid these problems and get great results from your 3D printer!

1. What is PLA filament and why is it popular among 3D printing enthusiasts

PLA filament is a type of plastic that is derived from renewable resources, making it more environmentally friendly than other types of 3D print filament.

PLA is also biodegradable, meaning that it will breakdown over time if it is disposed of in the right conditions. In terms of printing, PLA filament is known for being easy to use and giving good results.

It can be printed at lower temperatures than other filaments, making it less likely to warp or deform. PLA filament is also available in a wide range of colors, allowing you to create prints that are truly unique. Thanks to its combination of properties, PLA filament has become one of the most popular choices among 3D printing enthusiasts.

2. The problems that can be caused by moisture absorption in PLA filament

If PLA filament gets too wet, it can become sticky and clog your printer nozzle. In addition, wet PLA can cause your prints to warp or curl.  Moisture also makes the filament to become brittle and break easily. The moisture-absorbed PLA filament can also clog 3D printers nozzles and reduce the quality of prints. 

3. How to dry PLA filament properly so that you can avoid these problems

There are several methods that can be used to dry PLA filaments. The popular methods are below:

One popular method is to use a food dehydrator. Simply place the filaments on the dehydrator racks and set the temperature to between 40 and 60 degrees Fahrenheit. Leave the filaments in the dehydrator for 24 hours, or until they are completely dry. Another option is to oven-dry the filaments. Preheat your oven to 120 degrees Fahrenheit and place the filaments on a baking sheet lined with parchment paper. Cook the filaments for 2-3 hours, or until they are completely dry. Finally, you can also air-dry the filaments by hanging them up in a well-ventilated area for 24 hours.

What are the methods to dry PLA filament?

There are a few different methods that can be used to dry PLA filament, including using a

  1. Drying PLA in Food Dehydrator
  2. Drying PLA in Oven
  3. Filament Dryer
  4. Dry using Printer Heat Bed
  5. Hair dryer

Regardless of which method you choose, it is important to dry the PLA filament completely before attempting to use it again. Otherwise, you may end up with a failed print or damaged equipment.

1. PLA Drying in Oven:

PLA can be dried using a simple oven-dry method that only takes a few hours. The first step is to preheat your oven to around 40-45 degrees Celsius. Then, place your PLA spools on an oven-safe tray and put them in the oven for 4-5 hours.

If you suspect that your oven might not be very accurate when it comes to lower temperatures, it’s best to use a separate oven thermometer to get an accurate reading. That way, you can avoid over drying the filament and ruining your print.

Another thing to keep in mind is that different materials will require different drying times. For example, PLA will dry much faster than ABS, so make sure to check the recommended time for your specific filament.

Finally, it’s important not to leave the filament in the oven for too long even if the temperature is perfect. Over drying can still occur, so it’s best to err on the side of caution and take it out as soon as the recommended time is up.

Following these simple tips will help you avoid any issues with over drying your filament, and ensure that your 3D prints come out looking great every time.

Once the PLA has cooled, it will be ready to use. This simple method is an easy way to ensure that your PLA spools are always ready for printing.

2. Filament Dryers:

The Filament Dryer is a simple device that can be used to quickly and effectively dry PLA filament. To use the Filament Dryer, simply place the PLA filament in the device and turn it on. The Filament Dryer will then work to remove moisture from the filament until it is completely dry.

Once the filament is dry, it can then be used for 3D printing without any issues. The Filament Dryer is an essential tool for anyone who uses PLA filament for 3D printing.

By using a filament dryer, you can help to extend the life of your filament and prevent jams and other issues with your 3D printer. In addition, a dryer can also help to improve the quality of your prints by providing a consistent temperature for the filament.

There are different types of filament dryers in the market. Of all those, SUNLU and EIBOS filament dryers gives the best result in drying the PLA filament. Below are there more details:

SUNLU PLA Filament Dryer:

The SUNLU filament dryer is specifically designed for drying 3D printing filaments, and it features an intelligent control system that automatically adjusts the drying time and temperature based on the type of filament being used. As a result, users can expect perfectly dried filaments every time, with no risk of damaging them.

The SUNLU Filament Dryer is an essential tool for anyone who uses 3D printers, and it is sure to make your filament drying process much easier and more efficient.

The SUNLU dryer has a good solid reputation on Amazon, which is 4.6/5.0 overall rating with a lot of positive reviews. 

One reviewer mentioned that they had previously bought a different brand of dry box and were completely unsatisfied with it. That dryer didn’t seem to do anything at all, so they were thrilled to find that the SUNLU actually worked as advertised.

Several people noted that this dryer is very easy to use and comes with clear instructions. Overall, customers appear to be very happy with their purchase of the SUNLU dryer.

Buy SUNLU Filament Dryer from Amazon today

EIBOS Filament Dryer:

EIBOS Filament Dryer Box is the perfect solution for keeping your filaments dry and tangle-free. The EIBOS Filament Dryer Box can hold up to 2 spools of filament, and can reach temperatures of 70°C to keep your filaments warm and dry.

With its sleek design and easy-to-use interface, the EIBOS Filament Dryer Box is the perfect way to keep your filaments in pristine condition.

Order yours today and never worry about tangled filaments again!

3. Food Dehydrator:

Drying PLA filament in a food dehydrator is a great way to dry your filament without having to use an oven or a filament dryer. Food dehydrators are designed to dry food and fruits, but they can also be used to dry 3D printer filament.

The main benefit of using a food dehydrator is that it is much cheaper than an oven or a filament dryer. You can find a food dehydrator at any kitchen supply store or online. Another benefit of using a food dehydrator is that it is very easy to use. Simply place your PLA filament in the dehydrator and turn it on. The dehydrator will do the rest.

Chefman food dehydrator:

Chefman food dehydrators are designed to dry PLA filament quickly and evenly, while preserving maximum flavor and nutrition. The adjustable temperature settings allow you to customize the drying process to your specific needs, while the clear door lets you monitor the progress of your filament drying process.

Set the dehydrator PLA filament drying temperature between 40-50°C. Place your PLA inside and let it dry for 4-6 hours.

Chefman food dehydrators are an essential tool for drying PLA filament.

Check the price of Chefman Food Dehydrator today

4. Dry using Printer Heat Bed

A simple way to dry your PLA is using heated print bed. Switch on the print bed heater and heat it to 45-55°C and dry it for 2-4 hours. It’s important to use an enclosure or cover your filament with a cardboard box to prevent moisture from entering.

Check on your filament occasionally to make sure it’s drying evenly. By taking the time to properly dry your PLA, you can avoid common printing issues and produce high-quality prints.


How do you get moisture out of PLA filament?

If your PLA filament has absorbed moisture, there are a few things you can do to remove the moisture and restore it to its original state. One way is to simply leave the filament out in a dry, warm area for 24 hours or more. This will allow the moisture to evaporate off of the filament. Another way to remove moisture is to bake the filament in an oven at around 200 degrees Fahrenheit for 30-60 minutes. This will cause the moisture to evaporate, but it can also degrade the quality of the filament. If you don’t want to risk damaging your filament, you can also try using a food dehydrator set to around 35-40 degrees Fahrenheit. Whatever method you choose, make sure to dry your PLA thoroughly before using it for 3D printing. Otherwise, you may end up with poor print quality or even failed prints.

What temperature should it be to dry PLA filament?

PLA filament can be dried at temperatures ranging from 50-60 degrees Celsius. However, the precise drying temperature will vary depending on the brand and type of PLA filament being used. In general, it is best to start at the lower end of the recommended temperature range and increase the temperature if needed. Properly dried PLA filament should be easier to remove support material from and produce less stringing during printing.

Can I dry PLA in the oven?

Yes, you can dry PLA filament in the oven. The oven heat helps to remove any moisture that may be present, and this can prevent the PLA from becoming warped or cracked. However, it is important to monitor the PLA closely while it is in the oven, as too much heat can cause the PLA to melt. Once the PLA has cooled, it can be stored in an airtight container for future use.

How long does it take to dry PLA filament?

The recommended drying time for PLA filament is 4-5 hours at a temperature of 40-45°C. This temperature is just below the PLA’s glass transition temperature, meaning the temperature at which it softens up to a certain level. By drying the filament at this temperature, you can help to prevent issues with moisture and ensure that your prints come out looking their best.

How can you tell if PLA is wet?

The easiest way to tell if PLA is wet is to extrude some filament and watch it come out of the nozzle. If you see any bubbles, hear any hissing/popping/cracking, or see steam coming off the filament, then it’s definitely wet and needs to be dried out.

How long does it take for PLA to absorb moisture?

When PLA is exposed to humid air for more than 150 hours, it absorbs moisture and expands by40 micrometers.

Does PLA expand when wet?

Yes, PLA expands by 20-40 micrometers when it absorbs moisture. The success of a 3D print relies heavily on tight tolerances and small layer heights. If the filament diameter is even slightly increased, by as little as 20-40 microns, it can cause the entire print to fail. This is because the filament must be melted and extruded in order to create each individual layer, and if the diameter is too large, the layers will not adhere to one another properly. As a result, it is essential to use a high-quality filament that adheres to the specified tolerances in order to ensure a successful print. Additionally, the use of a heated build plate can also help to improve adhesion and prevent Print Failures.

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