How to make disposable vapes juice?

If you’ve ever taken apart a disposable vape out of curiosity, you’ve probably asked yourself: “Could I refill this thing?” The answer isn’t as simple as yes or no—but with a little knowledge of what’s inside, the idea of making your own vape juice becomes a lot less mysterious.

Disposable vapes are designed for one-time use, but many users are starting to explore ways to extend their lifespan. Understanding how vape juice is made—from the base ingredients like vegetable glycerin and propylene glycol to the role of nicotine and flavor concentrates—can help you see what goes into each puff. In this article, we’ll break down what vape juice is, how it’s made safely at home, and what to keep in mind if you’re thinking about refilling a used disposable vape.

 

 

1.What Is Disposable Vape Juice Made Of?

When it comes to disposable vapes, the juice inside—commonly called vape juice—is what gives you that satisfying hit and flavor. But what exactly goes into it? Let’s break down the main ingredients you'll find in most disposable vape liquids, no fancy jargon, just the basics.

 

1. Propylene Glycol (PG)

PG is a clear, thin liquid that mainly acts as a carrier or diluter for the vape juice. It helps carry the vape flavors and nicotine, and it also gives you that familiar “throat hit” similar to what you feel when smoking a traditional cigarette. Because it’s light and has little taste on its own, it lets the flavors come through clearly. PG is widely used in food, medicines, and cosmetics and is generally considered safe. That said, a small number of people might experience throat dryness or mild irritation when using products high in PG.

 

2. Vegetable Glycerin (VG)

VG is thicker and sweeter than PG and is responsible for producing the dense clouds of vapor that many vapers enjoy. It smooths out the inhale and adds a bit of sweetness to the overall experience. Since VG is derived from plant oils and is also food-grade, it’s considered gentle on the throat. But if the VG content is too high, the juice can become thick and might clog the heating coil or wick inside your disposable vape, affecting performance.

 

3. Nicotine

Nicotine is the active ingredient that gives smokers the “satisfaction” and addictive quality they’re used to. In disposable vapes, you’ll mostly find nicotine in two forms: freebase nicotine and nicotine salts. Nicotine salts are preferred in disposables because they absorb faster and feel smoother even at higher concentrations. Depending on the vape brand, nicotine levels usually range from about 20mg/ml to 50mg/ml. It’s important to pick the right strength for your needs. Keep in mind nicotine is addictive and not recommended for minors, pregnant or breastfeeding women, or people with certain heart or lung conditions.

 

4. Food-Grade Flavorings

These are what bring the juice to life—whether it’s fruity, minty, or dessert-inspired. Flavorings come from natural extracts or synthetic sources. Skilled formulators often blend multiple flavor concentrates to recreate complex tastes like “mango ice” or “blueberry burst.” Although these flavorings are food-grade, research is still ongoing about their long-term effects when inhaled, especially when heated during vaping. Some compounds can break down into irritating substances, so it’s something to be aware of.

 

5. Colorants and Sweeteners

Not every vape brand adds these, but some manufacturers include small amounts of colorants or sweeteners like ethyl maltol. These additives can enhance the look and taste of the vape juice, making it more appealing. However, studies suggest that flavored vapes produce reactive oxygen species (ROS) in the aerosol, which might pose health concerns with long-term exposure. So while they do improve flavor, there’s a debate about their safety over time.

 

 

2.Can You Refill a Disposable Vape?

From a technical standpoint, some disposable vapes can actually be refilled, but it really depends on the specific design of the device.

 

1. Some Devices Are Designed to Be Opened

While most disposable vapes look completely sealed, certain brands include a refill port or a soft plug under the mouthpiece or at the bottom. With the right tools and a bit of care, these parts can be gently opened, allowing you to add more vape juice.

 

2. Battery Life May Still Be Available

In many cases, the battery inside a disposable vape lasts longer than the vape juice. So even if the liquid runs out, the device may still have power left. Adding fresh juice can extend the device’s use for some additional time before the battery finally dies.

 

3. Cost-Effective for Frequent Users

Refilling a disposable vape is often cheaper than buying a new one, especially if you vape regularly. Instead of tossing the whole device, topping off the juice can save you money in the long run.

 

4. Extends the Device’s Lifespan and Reduces Waste

As long as the disposable vape isn’t damaged and the heating coil (or atomizer) is still working properly, refilling can give the device a second life. This not only saves money but also reduces electronic waste, which is better for the environment.

 

 

But Refilling Disposable Vapes Comes with Risks

1. Not All Disposable Vapes Are Meant to Be Opened

Many disposable devices are fully sealed with no refill ports at all. Trying to force them open can damage the battery or internal circuits, rendering the device useless.

 

2. Old or Worn-Out Coils Can Affect Your Experience

Even if you successfully add vape juice, the heating coil inside may be worn down or burnt. This leads to poor vapor production, bad taste, or a harsh burnt flavor. Using a coil past its prime can also introduce unwanted chemicals into the vapor, making your vaping experience unpleasant or even unsafe.

In summary, refilling disposable vapes can be possible and cost-effective if your device is designed for it and still in good condition. However, it’s important to understand the potential risks and be cautious when attempting to refill. Sometimes, replacing the device is simply the safer and more reliable choice.

 

 

3.Is It Safe to Refill a Disposable Vape?

Refilling disposable vapes is a topic with mixed opinions. Let’s look at both sides to understand when it might be safe—and when it could be risky.

The Upside: Refilling Can Be Safe Under the Right Conditions

1. Simple Designs Make It Easier and Safer

Some disposable vapes have straightforward designs. Certain brands include a soft plug at the bottom or under the mouthpiece that can be opened without damaging the battery or internal electronics. If you’re careful and use clean tools, the risk during refilling is pretty low.

 

2. Following Proper Procedures Reduces Risks

If you have basic DIY skills and take your time, refilling can be done safely. The key is not to force anything, avoid spilling juice onto the battery, and control the amount of liquid you add. Using the right tools and working in a clean environment helps minimize problems.

 

3. Control Over Your Vape Juice Means Less Guesswork

When you refill with vape juice from trusted brands, you avoid some of the harsh chemicals or heavy flavors found in certain factory-filled disposables. This control over ingredients can lead to a smoother, more enjoyable experience.

 

4. Many Users Have Had Success

On platforms like Reddit and YouTube, experienced vapers share stories of successfully refilling disposables without issues. When done correctly, many users report their devices continue to work well after refilling.

 

The Downside: Refilling Comes With Real Risks

1. Battery Wear and Safety Concerns

Disposable vapes are designed for one-time use, and their batteries aren’t meant to last forever. Continuing to use the battery after refilling can cause overheating or even short circuits. Since the battery can’t be replaced, this is a significant safety concern.

 

2. Risk of Juice Leaking Into the Battery

If you’re not careful during refilling, vape juice can accidentally seep into the battery compartment or circuit board. This can cause shorts, damage the device, or in worst cases, lead to smoke or fire. Many disposables don’t have protections against leaks, so even a small mistake can cause serious problems.

 

3. Using an Old Coil Can Harm Your Health

The heating coil or wick inside disposables can wear out or get dirty over time. Refilling and continuing to use an old coil can result in burnt tastes or harmful chemicals being inhaled. Residual metals or burnt particles trapped in the coil might negatively affect lung health.

 

4. Hygiene and Cleanliness Are Hard to Guarantee

Most people don’t have sterile conditions for refilling. Dust, bacteria, or dirt on your hands, tools, or vape juice bottles can contaminate the liquid. Since vape juice is heated and inhaled directly into the lungs, contamination poses a potential health risk.

 

 

4.How to Make Disposable Vapes Juice?

Disposable vapes aren’t really made for refilling, but if you're into DIY or just curious about what goes into vape juice, making a small batch at home is totally doable. It’s not overly complicated—as long as you’re careful, clean, and understand the ingredients. Here’s a step-by-step breakdown of how to make vape juice that can be used to refill disposable devices.

 

Step 1: Know What’s in Vape Juice

Before you start mixing anything, it's important to understand the basic ingredients that make up vape juice. Most vape juices—whether made for large mods or disposable vapes—are made of four main components:

Vegetable Glycerin (VG): This is what makes the clouds. The higher the VG, the thicker and smoother the vapor. It's slightly sweet and gives that full, smooth inhale feeling.

Propylene Glycol (PG): This is the carrier for flavor and gives that sharp throat hit many ex-smokers like. A higher PG ratio usually means a stronger hit and a lighter vapor.

Food-grade Flavorings: These create the actual vape flavors—fruity, minty, dessert-like, you name it. Without flavoring, vape juice would be basically tasteless.

Liquid Nicotine (optional): If you want that kick, you can add nicotine to your juice. It's super potent, so dosing must be precise to avoid making it too strong or unsafe.

 

Step 2: Get Your Tools and Workspace Ready

Making vape juice doesn’t require a full lab, but you do need a clean, well-lit space and a few tools:

A digital scale (accurate to 0.01g) to measure your ingredients

Small syringes or droppers for precise mixing

Empty bottles to hold your final mix

Gloves and a mask, especially if handling nicotine—don’t let it touch your skin

Paper towels or alcohol wipes to keep everything clean

 

Step 3: Measure and Mix the Ingredients

There’s no one-size-fits-all recipe, but a good beginner formula for vape juice is:

60% VG

30% PG

10% flavoring

If you’re adding nicotine, it usually replaces a small portion of the VG/PG mix. Let’s say you want to make 10ml of vape juice:

Use 6ml of VG

Add 3ml of PG

Mix in 1ml of flavoring

For nicotine: If you’re using 100mg/ml nicotine and want your juice at 3mg/ml, you’d add 0.3ml of nicotine and reduce the VG/PG accordingly to keep the total volume at 10ml.

Important: Always use syringes or droppers to add each component separately—don’t just pour from the bottle. Accuracy is key.

 

Step 4: Shake It Up

Once everything’s measured out, pour it all into a clean bottle. Put the cap on tight and shake it hard for about a minute. You’ll notice the liquid becomes a bit cloudy or thick—that’s normal. That just means the ingredients are blending.

If your mix includes nicotine, don’t touch the bottle opening afterward. Clean the area around you and wash your hands again.

 

Step 5: Let the Juice Steep ("Breath")

Freshly mixed vape juice usually doesn’t taste great right away. That’s because the flavors and base liquids need time to fully combine. This process is called “steeping”—sort of like letting wine breathe.

Here’s how to do it:

Store your vape juice in a cool, dry place, away from direct sunlight

Let it sit for 3–7 days, depending on the flavor

Shake the bottle once a day to help the blending process

Some flavors—like creamy or dessert-style vapes—take longer to steep (up to a week), while fruity flavors usually mellow out in about 3 days.

 

Step 6: Refilling a Disposable Vape (If You Must)

Now that your vape juice is ready, you can try using it in a disposable vape device—but proceed with caution. These devices weren’t designed for refills, and the structure is usually sealed. That said, some models can be carefully opened.

Here’s what to do:

Inspect the device – See if the mouthpiece or bottom cap can be gently pried open.

Find the cotton wick or tank – This is where the juice goes.

Use a dropper to refill – Slowly add no more than 1ml of vape juice to avoid overfilling or flooding the coil.

Let it sit – After refilling, let the vape rest for at least 10 minutes to let the cotton fully absorb the juice.

If the coil is still good and the battery isn’t dead, your disposable vape should work for a bit longer. But remember: this is more of a hack than a standard practice.

 

 

5.What Are the Most Common Mistakes When Refilling Disposables?

Trying to refill a disposable vape might sound like a clever way to stretch your device’s life, but doing it wrong can ruin the whole thing—or worse, make it unsafe. If you’re going to go down the refill route, make sure you’re avoiding these common (and surprisingly easy-to-make) mistakes:

1. Forcing the Cap Open With the Wrong Tools

The Mistake:
Many people try to pry open their disposable vape with whatever’s lying around—keys, scissors, even fingernails. Best case? You scratch up the device. Worst case? You crack the shell or cut your hand.

The Right Way:
Use something precise but gentle, like a small screwdriver, tweezers, or a plastic pry tool. Work slowly and carefully—if it feels like it’s not meant to open, it probably isn’t. Some disposables are completely sealed, and forcing them open can break internal parts for good.

 

2. Overfilling the Tank With Too Much Vape Juice

The Mistake:
Trying to “get your money’s worth” by dumping 2–3ml of vape juice in all at once. The result? Leaks everywhere and a burnt hit because the cotton’s oversaturated.

The Right Way:
Keep it under 1ml. Always check if the cotton wick is fully soaked but not overflowing. If you're unsure, add a bit, wait, then top off if needed. After refilling, let the device sit for a few minutes to allow the juice to absorb properly before using.

 

3. Vaping Too Soon After Refilling

The Mistake:
Refilling and immediately taking a hit. That dry cotton hasn’t had time to soak up the juice, so the coil burns it—and now your vape tastes like burnt socks.

The Right Way:
After adding juice, wait at least 5–10 minutes before vaping. If you’ve got time, wait longer. Letting the cotton fully absorb the juice keeps the flavor clean and extends the life of the device.

 

4. Using the Wrong Type of Vape Juice

The Mistake:
Grabbing any vape juice from your shelf without checking the VG/PG ratio. High-VG juice (used in sub-ohm devices) is too thick for most disposables. It doesn’t wick properly and clogs the coil fast.

The Right Way:
Use vape juice made for low-wattage, mouth-to-lung devices—ideally 50/50 VG/PG or 40/60 PG-heavy blends. These are thinner and vaporize better in compact disposable hardware.

 

5. Ignoring Leaks and Still Trying to Vape

The Mistake:
Noticing e-liquid on the outside of the vape but puffing away anyway. The result? Juice in your mouth, short circuits, and maybe even damage to the battery.

The Right Way:
After refilling, wipe down the device thoroughly with a tissue or alcohol wipe. If there’s serious leaking, take it apart and check: did you overfill? Is something loose? Don’t vape until everything is dry and secure.

 

6. Refilling Too Many Times Without Replacing the Cotton

The Mistake:
Refilling the same disposable three or four times, thinking it's saving money. But over time, the wick gets burnt or clogged, and the flavor goes downhill fast.

The Right Way:
Disposable vapes were never built for long-term use. If you’re refilling more than once or twice, the cotton’s probably degraded. Once it starts tasting weird, producing less vapor, or smelling burnt—it’s time to toss it. Don’t push it to the point of tasting like melted plastic.

 

7. Using Low-Quality or DIY Vape Juice Without Knowing What’s Inside

The Mistake:
Buying cheap “mystery juice” online or mixing your own without knowing the proper ratios. Result? Harsh throat hits, weak flavor, or even chemical aftertastes.

The Right Way:
Only use food-grade, trusted-brand vape juice. If you’re mixing your own, know your ingredients and follow safe ratios. Poor-quality vape juice can irritate your throat or damage your device—not worth the gamble.

 

8. Refilling When the Battery’s Already Dead

The Mistake:
Juice goes in fine, but there’s no vapor. You keep adding more juice, thinking the coil is dry, but the real problem? The battery is done.

The Right Way:
Before refilling, check for signs of life—do the lights still turn on? Is there still vapor? If the device is unresponsive or weak, the battery’s probably gone. No amount of juice will fix that.

 

9. Blocking the Airflow or Clogging the Mouthpiece

The Mistake:
Accidentally getting cotton or juice into the airhole or letting debris block the pathway. You take a hit, and it feels tight, choked, or barely produces vapor.

The Right Way:
Be mindful of where the airflow holes are when refilling. After you’re done, inspect the mouthpiece and vents. If anything’s clogged, gently clear it with a toothpick or cotton swab—no force, just enough to let air through.

 

 

6. What’s the Best Disposable Vape in 2025?

The disposable vape market in 2025 is nothing like it used to be. It’s no longer just about getting a quick nicotine fix. Now, it’s about performance, flavor variety, battery life, and even smart features. If you're looking for the best disposable vape, you're in luck—this year’s lineup is more advanced and user-friendly than ever.

Among the top performers, JNR Vape has rolled out a few standout products that cater to different needs. Whether you’re after cutting-edge features, a smooth everyday experience, or long-lasting power, there’s a JNR device designed with you in mind.

 

1. JNR Phone Vape (also known as jnr media max 40k)

If you're someone who appreciates tech and functionality in your gadgets, the JNR Phone Vape—also referred to as the jnr media max—might be the most impressive release of the year. This isn’t just a vape; it's practically a smart device.

Key Features:

Smart Integration: This vape can receive text messages, remotely activate your phone’s camera, and even help you find your lost device—or use your phone to locate the vape. These are features rarely seen in the vaping space, adding convenience and a bit of fun.

2.4-Inch HD Display: The large, bright screen shows you battery life, juice levels, and allows for easy flavor switching if your device supports multiple cartridges. The interface gives a real sense of control and futuristic appeal.

Adjustable Airflow + Dual Mesh Coil: These design upgrades let you fine-tune the draw resistance to your liking. The vapor comes out smoother, and there's little to no harshness on the throat.

Powerful Battery + High Juice Capacity: A 1000mAh battery paired with 21ml of vape juice means you won’t be reaching for a charger or a replacement any time soon. It's great for moderate to heavy users.

Best for:

Users who love smart devices and value added functionality

People who travel often or want extra convenience like device-tracking

Anyone curious to try an innovative take on the disposable vape concept

With all these features packed into one sleek product, it’s easy to see why many call the JNR Phone Vape one of the best disposable vapes in 2025.

 

2. JNR Alien Vape

If you're looking for a reliable, flavorful, and easy-to-carry device, the JNR Alien Vape checks all the boxes. It doesn’t try to do too much—it just does the basics really well.

Key Features:

Balanced Nicotine Strength: With 2% nicotine, it offers a smooth andmoderate hit. This makes it ideal for regular use, especially for people trying to quit smoking without overwhelming themselves.

10,000 Puffs + 20ml Juice Capacity: Despite its impressive capacity, the device feels compact and lightweight. It’s designed for practicality without compromising performance.

1.2Ω Mesh Coil + Fast Charging: You get smoother, more flavorful vapor with minimal burn. The Type-C charging port adds convenience and is compatible with most modern chargers.

Huge Flavor Range: With up to 50 flavors available, flavor enthusiasts will have no shortage of options. Whether you're into fruit, dessert, menthol, or unique blends, there’s something for every palate.

Best for:

Vapers who like switching flavors regularly

Commuters or those who vape casually throughout the day

Users who are sensitive to harshness and prefer a smooth inhale

For those who prioritize comfort, flavor, and reliability, the JNR Alien Vape earns its spot among the best vapes on the market right now.

 

3. JNR Falcon X 18000 Puffs Disposable Vape

Looking for something that lasts a long time and delivers serious performance? The JNR Falcon X 18000 Puffs Disposable Vape is built for endurance and power, making it one of the most capable vapes on the market today.

Key Features:

Massive Puff Count: With up to 18,000 puffs and 2% nicotine content, this device is geared toward heavy users who want to go days or even weeks without needing a replacement.

Huge Juice and Battery Capacity: It holds 24ml of vape juice and runs on a 950mAh battery. This combo means fewer charges, fewer replacements, and more consistent usage over time.

Dual Mesh Coils + Dual-Core System: Expect stronger vapor output and better flavor consistency. It delivers a more intense experience, especially for those who prefer bold flavors and bigger clouds.

Digital Display: The built-in screen shows your current battery and e-liquid levels, which helps prevent unexpected cutoffs or dry hits.

Best for:

Heavy vapers who go through a lot of puffs daily

Travelers or professionals who don’t want to worry about constant charging

Users who prefer a rich, dense vapor experience with strong flavor delivery

The JNR Falcon vape series stands out for its power and long life. If you’re someone who values performance and longevity, this might be the best disposable vape for you in 2025.

 

7. Reddit’s Verdict: DIY Disposable Vape Juice?

Across Reddit, the topic of refilling disposable vapes sparks a lot of debate. While these devices are technically built for single use, many users have found ways to stretch their lifespan by topping off the e-liquid themselves. But is it worth it?

We dove into Reddit threads like r/disposablevape and r/Vaping to get the inside scoop. For some, refilling is a budget hack. For others, it’s more trouble than it’s worth. Here are two stories that show both sides of the DIY vape juice conversation.

 

Story 1: Sam B., 24, from Austin — “I Got One More Week Out of It”

Sam had been using the JNR Alien Vape for about two weeks when he noticed the flavor was fading and the vapor getting thinner. The battery still had juice, so he figured he’d try refilling it instead of tossing it out.

“I didn’t have a refillable setup at the time, and I still had some 50/50 salt nic left from an old pod system. I used tweezers to carefully pull out the mouthpiece, then added maybe half a milliliter of juice directly to the cotton.”

Sam let it sit for about 15 minutes before trying it again.

“It worked surprisingly well. The flavor came back, and I used it for another five or six days before the hits started getting burnt again. After the second refill, it wasn’t worth saving.”

For Sam, it was a quick fix that bought him a few more days. He said he wouldn’t recommend doing it regularly, but in a pinch, it worked.

 

Story 2: Angela M., 31, from Chicago — “Leaked Everywhere, Then Died”

Angela wasn’t as lucky. She tried refilling her JNR Phone Vape—also known as the Mediamax Vape—after reading a Reddit thread where someone had success adding e-liquid to the cotton through a small opening under the mouthpiece.

“I followed everything step by step, even used a plastic syringe so I wouldn’t overfill. But once I started using it again, the thing started leaking all over the place. I didn’t realize how sensitive the airflow chamber was.”

She wiped it down and tried again, but within a few puffs, the device shut off.

“I think the juice leaked into the battery compartment. After that, the screen stopped working. I pretty much ruined it trying to save it.”

Angela says the experience convinced her to avoid DIY refills altogether.

“It’s just not worth the risk. These are sealed for a reason.”

 

8. Vape Shops Near Me: Where to Buy JNR Vape?

If you’ve been searching for vape shops near me or wondering where to get your hands on JNR Vape products, you’re not alone. With a growing reputation for quality and affordability, JNR Vape has quickly become a go-to name for both casual users and experienced vapers looking for reliable, high-performance devices without breaking the bank.

So, where can you actually buy JNR Vape? Let’s break it down.

Online First: The Best Place to Buy JNR Vape

The most direct and reliable source is the official site: jnrsmoke.com. Whether you’re after the JNR Phone Vape, Mediamax Vape, JNR Alien Vape, or high-capacity models like the JNR Falcon X 18000 puffs disposable vape, you’ll find the full lineup available for purchase here.

By buying from the source, you unlock several key benefits:

Exclusive discounts just for new customers

A loyalty points program that rewards frequent buyers

Limited-time flash sales on the most popular models

Free shipping on eligible orders, including international delivery

Access to cheap vapes that don’t compromise on quality

JNR’s direct-to-customer model keeps costs down by managing every step of the supply chain. That means fewer middlemen, more control over product quality, and pricing that stays competitive—even compared to local shops.

 

 

9.Conclusion:

Learning how vape juice is made gives you a clearer picture of what you’re actually inhaling. While most disposable vapes aren’t built to be refilled, understanding the basics of e-liquid composition can help users make more informed choices—especially when experimenting with brands like JNR Vape or Mediamax that offer high-capacity disposables.

That said, homemade vape juice should always be approached with caution. Without proper ratios and quality ingredients, you could end up with an unsafe mix. But for those interested in the science behind vaping, even a basic understanding of e-liquid formulation is a good first step toward safer, smarter use.If JNR Vape aligns with your preferences, Raz Vape is another premium option to consider.

 

 

10. FAQs

1. How long does vape juice last?
Unopened vape juice typically lasts about 1 to 2 years if stored properly—away from heat and direct sunlight. Once opened, it’s best to use it within 3 to 6 months to maintain flavor and nicotine quality.

2. What does vape juice do to your body?
Vape juice delivers nicotine and flavors through vapor inhalation. For adult smokers, switching to vaping can be a less harmful alternative to traditional cigarettes, helping reduce exposure to many toxic chemicals found in smoke. While not completely risk-free, vaping is considered by many health experts as a better option for those trying to quit smoking.

3. Does vape juice have calories?
No, vape juice contains no calories since it’s inhaled vapor, not ingested like food or drink.