How to Fill Empty Vape Cartridges with CBD or Cannabis Oil: Your Ultimate Guide

How to Fill Empty Vape Cartridges with CBD or Cannabis Oil: Your Ultimate Guide

Filling your own empty vape cartridges might seem like a daunting task, but it offers significant benefits, including cost savings, customization, and quality control. Let’s dive into a step-by-step guide to filling empty vape cartridges with CBD or cannabis oil, ensuring you get the best out of your vaping experience.

Why Fill Your Own Dab Cartridges?

Filling your own vape cartridges comes with a host of perks:

  • Save Money: Pre-filled cartridges can be pricey. DIY refills can slash your vaping costs.
  • Customize Your Experience: Choose your own oil, control the potency, and even add flavors.
  • Quality Control: Know exactly what’s going into your cartridge without any hidden additives.

What You’ll Need

Before getting started, gather all the necessary tools and materials:

  1. Empty Vape Cartridges: Ensure they’re high-quality and compatible with your vape pen.
  2. CBD or Cannabis Oil: The oil should be of the right consistency for vaping.
  3. Syringe with Blunt Tip Needle: For precision and safety during the filling process.
  4. Gloves: To maintain hygiene and avoid contamination.
  5. Paper Towels: To clean up any accidental spills.
  6. Small Container: For holding the oil while filling the syringe.

Step-by-Step Guide to Filling Oil Cartridges

1. Prep Your Space

Find a clean, well-lit area to set up your workstation. Lay down some paper towels to catch any drips or spills. Ensure all your tools and materials are within easy reach.

2. Warm Up the Oil

If your oil is too thick, it can be difficult to work with. Warm it up by placing the container in a bowl of warm water for a few minutes to thin it out slightly.

3. Disassemble the Cartridge

Carefully unscrew the mouthpiece from the cartridge and set it aside. Be careful not to lose any small parts.

4. Fill the Syringe

Put on your gloves to maintain cleanliness. Draw the warmed oil into the distillate syringe, ensuring you have the exact amount needed to fill the cartridge without overfilling.

5. Fill the Wax Cartridge

Insert the blunt tip needle of the syringe into the cartridge’s opening. Slowly and steadily inject the oil, stopping just before you reach the top to leave a small air gap and avoid leakage.

6. Reassemble the Cartridge

Once filled, carefully screw the mouthpiece back onto the cartridge. Ensure it’s snug but don’t overtighten, as this can damage the cartridge.

7. Let It Settle

Stand the filled wax cartridge upright and let it sit for a few minutes. This allows the oil to settle and fully saturate the wicking material inside.

Tips for a Smooth Filling Process

  • Consistency Matters: Make sure your oil has the right viscosity. Too thick, and it won’t vape properly; too thin, and it might leak.
  • Right Tools for the Job: Use a syringe with a blunt tip needle for precision and safety.
  • Avoid Air Bubbles: Fill the oil cartridge slowly to minimize air bubbles that can affect vaping quality.
  • Invest in Quality: High-quality cartridges prevent leaks and ensure a better vaping experience.

Troubleshooting Common Issues


If your dab cartridge is leaking, it might be due to overfilling, poor quality cartridges, or improper assembly. Ensure you leave a small air gap at the top and secure the mouthpiece properly.


Clogs can occur if the oil is too thick or if the cartridge isn’t used regularly. Slightly warm the cartridge or use a thin wire to clear any blockages.

Poor Vapor Production

If your oil cartridge isn’t producing enough vapor, it could be the oil’s consistency or the cartridge itself. Ensure your oil is the right viscosity and that the cartridge is compatible with your vape pen.

Choosing the Right CBD or Cannabis Oil

The quality and type of oil you use significantly impact your vaping experience. Consider these factors when selecting CBD or cannabis oil:

1. Purity and Quality

Choose oils that are pure and free from additives. Look for products tested by third-party labs to ensure safety and quality.

2. Viscosity

The oil should be the right consistency for vaping. Thicker oils may need to be diluted with a thinning agent like vegetable glycerin (VG) or propylene glycol (PG). Avoid oils that are too thin as they can cause leaks and poor vapor production.

3. Potency

Select an oil with your desired potency. Whether you prefer high-CBD, high-THC, or a balanced ratio, ensure the oil meets your needs and preferences.

4. Flavor

Flavored oils can enhance your vaping experience. Opt for natural terpenes or flavorings that complement the oil’s profile without overpowering it.

Safety Considerations

When handling and filling vape cartridges, safety is paramount. Here are some tips to keep in mind:

1. Use Quality Equipment

Always use high-quality dab cartridges, syringes, and other tools to avoid leaks, clogs, and other issues.

2. Handle Oils Carefully

CBD and cannabis oils can be potent. Wear gloves to avoid direct contact and ensure your workspace is clean to prevent contamination.

3. Store Oils Properly

Keep your oils in a cool, dark place to preserve their potency and prevent degradation. Ensure they’re out of reach of children and pets.

4. Follow Instructions

Always adhere to the manufacturer’s guidelines for your vape cartridges and oil to ensure proper use and safety.

Filling your own empty vape cartridges with CBD or cannabis oil can be a rewarding and cost-effective way to enjoy vaping. By following this comprehensive guide, you can ensure a smooth and hassle-free filling process, resulting in high-quality, customized vape cartridges that enhance your vaping experience. 

The key to success lies in using the right tools, maintaining proper hygiene, and choosing high-quality oils and cartridges.