Longfill e-liquids are rapidly gaining popularity among UK vapers, especially in Manchester, as a flexible and cost-effective way to enjoy customised vaping. Unlike pre-mixed e-liquids, longfills offer DIY enthusiasts the freedom to tailor nicotine strength, flavour intensity, and VG/PG ratios to their preference.
At Vapourse.co.uk, your local Manchester vape shop, we’ve created this detailed guide to explain everything you need to know about longfill e-liquids in 2025. From what they are, how to mix them, to their benefits and common questions, this blog will help you master longfills and enhance your vaping experience.
What Is a Longfill E-Liquid?
A longfill e-liquid is a partially filled bottle-usually 60ml in size-that contains a concentrated flavour base, typically between 10ml and 30ml of flavour concentrate. The rest of the bottle is left empty for you to add your choice of nicotine shots and PG/VG base liquid to complete the mix.
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Designed for DIY mixing
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Allows full control over nicotine strength and VG/PG ratio
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Not intended to be vaped straight from the bottle
How Do Longfill E-Liquids Work?
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Choose your longfill flavour: Comes as a concentrated flavour base in a 60ml bottle.
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Add nicotine shots: Usually 10ml nic shots, either freebase or nic salts, to reach your desired nicotine strength.
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Add PG/VG base: Depending on your vaping style, add a PG/VG mix (e.g., 50/50 for mouth-to-lung or 30/70 for direct-to-lung vaping).
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Shake well: Mix thoroughly to combine all ingredients.
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Ready to vape: Your custom e-liquid is now ready to use in your vape device.
Benefits of Longfill E-Liquids
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Customisation: Tailor nicotine strength (0mg to 20mg or more) and VG/PG ratio to your device and preference.
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Cost-effective: Buying flavour concentrate and mixing yourself is often cheaper than pre-mixed e-liquids.
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Less waste: Fewer bottles needed since you only buy flavour and base separately.
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Flexibility: Use with various devices, from pod kits to sub-ohm tanks.
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Variety: Access to a wider range of flavours and nicotine types (freebase and salts).
Longfill vs Shortfill E-Liquids: What’s the Difference?
| Feature | Longfill E-Liquids | Shortfill E-Liquids |
|---|---|---|
| Bottle size | Usually 60ml with 10-30ml flavour concentrate | 60ml or 120ml with pre-mixed base and flavour |
| Nicotine strength | Fully customisable by adding nic shots | Limited to max 3mg nicotine after adding nic shots |
| Mixing required | You add nicotine and PG/VG base separately | Only add nicotine shots, no base mixing needed |
| Flavour intensity | More concentrated flavour base | Flavour already diluted in base |
| Cost | Generally cheaper per ml | Slightly more expensive but simpler to use |
How to Mix Longfill E-Liquids Safely
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Use clean, well-ventilated space
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Follow manufacturer instructions for nicotine shots and base ratios
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Use gloves if handling nicotine shots
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Label your bottles with nicotine strength and date mixed
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Store mixed e-liquid away from direct sunlight and heat
What Nicotine Strengths and PG/VG Ratios Are Available?
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Nicotine strengths: Typically 0mg (nicotine-free), 3mg, 6mg, 10mg, 20mg or higher depending on nic shot concentration.
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PG/VG ratios:
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50/50 PG/VG for mouth-to-lung (MTL) devices
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30/70 or higher VG for direct-to-lung (DTL) sub-ohm devices
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Custom ratios available depending on vaping style
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Are Longfill E-Liquids Suitable for Beginners?
While longfills offer great customisation and cost benefits, they require some DIY mixing knowledge. Beginners can start with pre-packaged longfill kits that include flavour, nicotine shots, and base liquids with clear instructions. Vapourse.co.uk offers expert advice and starter kits to help Manchester vapers get started safely and easily.
Vapourse.co.uk – Your Manchester Vape Shop for Longfill E-Liquids
Visit us at 141 Cheetham Hill Road, Manchester M8 8LY, or shop online at Vapourse.co.uk for:
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A wide range of longfill flavours and DIY mixing kits
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Nicotine shots and PG/VG bases in various strengths and ratios
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Expert advice tailored to UK and Manchester vapers
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Competitive prices and fast UK-wide delivery
Frequently Asked Questions (FAQs)
Q: Can I vape longfill flavour concentrate on its own?
A: No, longfill concentrates must be mixed with nicotine shots and PG/VG base before vaping.
Q: How much nicotine should I add to my longfill?
A: It depends on your preference and device; common strengths are 3mg, 6mg for sub-ohm, and up to 20mg for pod devices.
Q: What is the difference between freebase nicotine and nic salts for longfills?
A: Nic salts provide a smoother throat hit and are preferred for higher nicotine strengths, while freebase nicotine offers a stronger throat hit.
Q: Are longfills cheaper than pre-mixed e-liquids?
A: Yes, generally longfills save money by letting you buy flavour and base separately and mix to your desired strength.
Q: Can I mix longfills with any PG/VG ratio?
A: Yes, you can customise the PG/VG ratio to suit your device and vaping style.
