Andrew has worked within the UK vape retail sector since 2016, building hands-on experience with a wide range of vape hardware, e-liquids and nicotine products.

As a content contributor at Vaping 101, Andrew focuses on product education, accurate hardware guidance and regulation-aware content for adult consumers. His experience covers pod kits, sub-ohm tanks, rebuildable atomisers, coil performance, nicotine salts and prefilled systems.

Working as part of a UKVIA-aligned retailer, Andrew also supports responsible product information that reflects UK TPD requirements, MHRA-notified product standards and age-restricted marketing expectations. He takes a practical, performance-led approach to vape product evaluation, looking closely at airflow, wicking, coil longevity and power delivery consistency.

Can You Mix Vape Juice? What to Know Before Mixing

Can you mix vape juice? The short answer is yes, but how you mix it and what you mix it with makes all the difference. Mixing vape juice incorrectly can ruin your coils, produce an unpleasant vape, or leave you with a nicotine strength far higher or lower than intended. Done correctly, mixing gives you complete control over your nicotine level, flavour profile, and VG/PG ratio.

This guide covers every type of vape juice mixing worth knowing: adding nic shots to shortfills, blending two flavours together, mixing high VG with 50/50 e-liquids, and what you should absolutely avoid. Whether you're new to mixing or just want to understand your options better, this is the guide to bookmark. You'll find all the products you need, from nic shots to premium shortfills, at Vaping 101.

Can You Mix Vape Juice With Nicotine Shots?

This is the most common and recommended type of vape juice mixing, and it's exactly what shortfills are designed for. A shortfill is a large bottle of nicotine-free e-liquid with a gap at the top. You add nic shots to that gap, shake, and vape. That's it.

The most widely used formula is straightforward. One 18mg nic shot added to a 50ml shortfill creates 60ml at approximately 3mg. Two 18mg nic shots added to a 100ml shortfill creates 120ml at approximately 3mg. If you want to work out a different strength, the shortfill calculator at Vaping 101 does the maths instantly.

Choosing the Right Nic Shot Type

What can you mix with vape juice when it comes to nicotine? There are two main nic shot types, and choosing the right one matters for the final result:

  • Freebase nic shots: deliver a stronger throat hit, suit high VG shortfills well. The Nic Nic 50/50 Shot 18mg is a reliable everyday choice.
  • Salt nic shots: smoother delivery, faster nicotine absorption, suits vapers who find freebase nic shots harsh. The Nic Nic Salt Nic Shot 20mg is a popular option for this.

You can also find salt nic shot collections from Top Shot, which produces 70VG salt nic booster shots that preserve the VG ratio of high VG shortfills more effectively. Browse the full nic shots collection to compare options side by side.

Matching Your Nic Shot VG/PG Ratio

The VG/PG ratio of your nic shot affects the final blend ratio of your shortfill. If you're mixing into a 70/30 shortfill and use a 50/50 nic shot, the final liquid won't be exactly 70/30 any more. For most vapers this makes no noticeable difference, but if you're chasing a specific ratio, choose a nic shot that closely matches your shortfill. A 70VG nic shot into a 70VG shortfill keeps the blend consistent throughout.

The nic salts vs nic shots guide covers this in more detail and explains how the two compare for day-to-day vaping.

Can You Mix Two Different Vape Juice Flavours Together?

Yes, you can mix vape juice flavours together, and many vapers do it regularly to create their own blends. The question isn't really whether you can do it. It's whether the resulting mix will taste good and whether the two liquids are compatible.

Combining two flavours in the same bottle or tank can produce something genuinely enjoyable, or it can produce something genuinely unpleasant. The outcome depends entirely on whether the flavour profiles complement each other.

Which Flavour Combinations Work Well?

Some flavour pairings produce excellent results. Here are the combinations vapers consistently find work:

  • Fruit and menthol: a fruity nic salt like strawberry or mango combined with a menthol option adds cooling without clashing.
  • Fruit and cream: most sweet fruit profiles blend well with custard or cream-based e-liquids for a dessert-style result.
  • Two similar fruit profiles: a tropical mix with a citrus option often produces a layered, refreshing result.
  • Tobacco and caramel: tobacco e-liquids often blend well with sweet caramel or vanilla profiles for a smoother tobacco experience.

Some flavour pairings almost never work well. Menthol with coffee creates a deeply unpleasant combination. Tobacco with strong fruit usually muddies both flavours. Strong dessert profiles mixed together often produce a cloying sweetness that ruins both liquids.

The rule of thumb: if the two flavours wouldn't work as a food combination, they probably won't work as a vape combination either. If you want pre-blended flavour combinations, bar juice and disposable-inspired juice ranges already offer layered profiles in a single bottle.

Can You Mix High VG and 50/50 E-Liquid Together?

Yes, mixing a high VG shortfill with a 50/50 e-liquid is one of the most practical things vapers do. The most common reason is to adjust the VG/PG ratio slightly, either to make a thick shortfill easier for a device to wick, or to find a balance between cloud production and throat hit. If you're on an advanced vape kit and sub-ohm tank, a 70/30 or 80/20 ratio shortfill is ideal. If your device is a pod vape or starter kit, stick with 50/50 liquids or nic salts.

If you have a device that doesn't wick 70/30 perfectly but handles 60/40 without issue, blending a 70/30 shortfill with a small amount of 50/50 liquid achieves exactly that. It's a practical solution rather than a precise science, but it works well in practise.

What you need to remember is that mixing different VG/PG ratios also changes the nicotine strength if one or both liquids contain nicotine. Use the shortfill calculator to check the final nicotine level before vaping if this matters to you. The VG and PG ratios guide explains how different ratios affect flavour, clouds, and throat hit in more detail.

Can You Mix Nic Salts With Shortfills?

This is a question worth answering carefully, because there are two very different scenarios here. Can you mix vape juice in the form of a nic salt with a shortfill? Yes, but only in specific ways.

Adding a nic salt nic shot to a shortfill is perfectly fine and widely done. This is simply choosing a salt nicotine booster instead of a freebase one. The result is a shortfill with smooth salt nicotine at a low strength, usually 3mg. This suits vapers who find freebase nic shots too harsh even at that strength.

Mixing a ready-to-vape nic salt like Bar Juice 5000 or Elfliq directly into a shortfill is a different situation. It technically produces a mixed liquid, but the resulting nicotine level and VG/PG ratio can be hard to predict without calculating it in advance. The shortfill calculator handles these calculations if you want to mix this way.

What you must not do is mix high-strength nic salts (20mg) into a shortfill without accounting for the final nicotine level. Combining 100ml of shortfill with 20mg nic salts can push the total nicotine well above expected levels depending on volumes used.

What Can You Mix With Vape Juice to Reduce Nicotine Strength?

Several vapers want to reduce their nicotine level gradually rather than jump straight to a lower-strength bottle. What can you mix with vape juice to achieve this? The simplest method is dilution.

Adding a small amount of nicotine-free liquid to a nicotine-containing e-liquid reduces the overall strength. For example, adding 10ml of a 0mg shortfill to a 10mg nic salt would roughly halve the nicotine concentration while creating a slightly larger volume of mixed liquid.

This approach works, but it requires careful calculation and a suitable container to hold the increased volume. The shortfill calculator covers different mixing ratios and can help you work out the final strength. Many vapers stepping down from 20mg simply move to 10mg nic salts or try 5mg options rather than diluting, as this approach avoids the mixing complexity entirely. You can explore the full e-juice range at Vaping 101 for every format and strength.

What Should You Never Mix With Vape Juice?

Knowing what can you mix with vape juice is just as important as knowing what to avoid. Some combinations are genuinely dangerous, and others simply ruin perfectly good e-liquid.

Never mix the following with vape juice:

  • Water: water doesn't blend with e-liquid properly and affects vapour production, flavour, and device performance. It can also encourage bacterial growth in the bottle.
  • Alcohol: spirits and other alcoholic liquids are not safe to vaporise and inhale. This is not a DIY technique and carries real health risks.
  • Essential oils: food-grade flavouring concentrates are specially designed for vaping. Essential oils are not, and many contain compounds that are harmful when inhaled.
  • Household flavourings: vanilla extract, fruit juice, and similar kitchen products contain water and alcohol that make them unsafe and incompatible with vaping equipment.

Stick to purpose-made vaping products: shortfills, nic shots, VG/PG base mixes from the base mix collection, and food-grade flavour concentrates from reputable suppliers. If you want to go the DIY route properly, longfills are designed exactly for that purpose and take the guesswork out of flavour mixing.

How to Mix Vape Juice Properly: Step by Step

The most common mixing task for most vapers is adding a nic shot to a shortfill. Here's exactly how to do it correctly every time.

The steps are simple and only take a couple of minutes:

  • Step 1: Choose your shortfill. Popular options include the Dinner Lady 50ml Shortfill for dessert profiles, the Vampire Vape Strawbizzle 50ml Shortfill for fruit options, or browse Riot Squad for bold punchy profiles.
  • Step 2: Choose your nic shot. Match the VG/PG ratio as closely as possible to your shortfill for the best result.
  • Step 3: Remove the nozzle cap from the shortfill bottle (this often requires a coin or flat tool as they can be stiff).
  • Step 4: Squeeze the nic shot contents into the shortfill bottle slowly to avoid spillage.
  • Step 5: Replace the nozzle and cap securely.
  • Step 6: Shake vigorously for 30 to 60 seconds to mix the nicotine evenly throughout the liquid.
  • Step 7: Let the bottle rest for a few minutes before filling your tank.

Follow the full how to use shortfills guide at Vaping 101 for more detailed guidance on mixing and adding nicotine correctly.

The full shortfills collection at Vaping 101 covers brands including Dinner Lady, Vampire Vape, Doozy Vape, Fantasi, and many more for you to mix with your preferred nic shots.

Frequently Asked Questions

Yes. Mixing flavours from different brands works as long as both liquids have the same or very similar VG/PG ratio. Mixing a 70/30 shortfill with a 50/50 shortfill changes the ratio, which can affect how the liquid performs in your device.

Add freebase or salt nic shots to nicotine-free shortfills to increase the nicotine level. Never vape nic shots on their own. Always calculate the final strength using the shortfill calculator before vaping.

You can mix two nic salt bottles together in a tank or combined container. The result is a liquid with a blended flavour profile and a nicotine level somewhere between the two. Stick to the same VG/PG ratio for the most predictable outcome and clearest flavour.

No. Water does not blend properly with e-liquid and damages the vaping experience. It also creates conditions for bacterial growth inside the bottle. Use nicotine-free shortfills or 0mg nic salts instead if you want to vape without nicotine.

Vaping 101 stocks a comprehensive range of nic shots and shortfills from trusted UK brands, all TPD-compliant and available with fast delivery. The shortfill calculator helps you plan your mix before you buy.

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