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Longfill Vape Juice - Explained

Longfill Vape Juice - Explained

What is longfill e-liquid?

In short, longfill e-liquid (sometimes known as shake ’n’ vape) is a bottle filled with flavour concentrate and nothing more, usually a 60ml bottle with 20ml of concentrate. There’s no VG/PG mix or nicotine, just the flavourings. You can’t vape this flavour concentrate alone, so it must be mixed with nicotine and VG/PG. This is where the customisation of longfills come into play.

longfill vape juice

You can really customise the ratio of the e-liquid when using long fills. Whether you vape high VG e-liquids or prefer a more 50/50 ratio, it’s all possible using the same bottle. Longfills are not too restrictive when it comes to nicotine strength either. If you’re using 10ml TPD bottles that contain nicotine, you can make up to 10mg of nicotine per bottle.

Longfills are perfect for people who don’t want to fully delve into DIY e-liquid but want to have some control over their desired e-liquid ratio and strength, dipping their toes into e-liquid mixing without worrying about the flavour concentrates involved. You can even customise the icy hit in your juice which is a great bonus.

Longfill pros & cons

You may not be sure if long fill vape juice is for you, however there are multiple benefits and drawbacks when it comes to longfills. If you’re not sure whether to give longfills a go, take a look at our table below. Here at Prime Vapes we’ve dabbled more with longfills recently in order to give a full and honest opinion about the many aspects of it.

longfill vape juice pros & cons

Longfill Pros

Longfill Cons

Cheaper than pre-mixed e-liquid overall

Bigger bottles to carry

Flexible ratios & nic strengths

Less selection than salts & shortfills

Simpler than DIY due to pre-mixed concentrate

May require excess VG/PG

Doesn’t require flavour steeping

Does require some calculation

 The pros & cons of longfills vary person to person, here at the office our favourite thing was the control over the ice and nicotine content. The thing we found most frustrating was having to vape 60ml of the same flavour. To some people vaping the same flavour is fantastic, if so then longfills could definitely be for you. However, here at Prime Vapes, we love switching flavours up, admittedly more than necessary. We’ve found that many customers who’ve tried out longfills have stuck with them, with only a few returning to pre-mixed e-liquid.

How does longfill become e-liquid I can vape?

This of longfill like cordial squash. You need to dilute it with an unflavoured ‘mixer’. Whether you want to vape 0mg or 20mg juice, you still need to dilute the flavour. Although its not dangerous to vape straight concentrate, it won’t taste at all as expected and will gunk up the coils and will be extremely rough on the throat. There are a few types of longfills you can choose from, some being easier to mix than others.

1. Longfills that come with mixing packs.

A great example of this type of longfill is Nixer. All Nixer bottles are supplied with a mixer pack that includes 3 x 10ml bottles for you to mix the liquid to your desired VG/PG ratio and nicotine strength. Nixer offers 10 different packs to choose from, with 70/30 and 50/50 ratios, as well as freebase and salt nicotine, 0mg-10mg. This type of longfill is best for beginners and has simple set up instructions.

2. Longfills that are filled to 40ml.

These longfills (like Doozy Pod Fill Max) are more like shortfills than longfills, however they offer room for 2 x 10ml nic shots instead of just the one. This allows for a bit more nicotine strength and ratio customisation. You can make the nicotine strength up to 6mg with 2 shots, or keep at at 3mg with 1 shot. The ratio can still be slightly altered depending on which nicotine shots are used, however they can’t be drastically changed. Check what the base ratio of the e-liquid is before deciding on the bottle.

3. Longfills that require separate VG & PG.

Sometimes longfills only feature 5-20ml of flavour concentrate in either a 60ml or 120ml bottle. These longfills generally don’t feature a mixing pack and will be limited when using only nicotine shots to fill it up. You’ll have to source your own VG and PG which are usually sold in larger quantities. As they require separate ingredients, these longfills are a bit trickier to make, however they can save you a lot of time and money in the long run if you stick to it.

The difference between shortfill and longfill

Longfills and shortfills are quite similar, however longfills bridge the gap between shortfills and DIY e-liquid. They allow more customisation than shortfills, therefore requiring slightly more work.

shortfills vs longfills

Ratio

The ratio of an e-liquid is the amount of VG (vegetable glycerine) & PG (propylene glycol) in the bottle respectively. The PG/VG ratio of an e-liquid determines its thickness which in turn determines its cloud production. The more VG the thicker the liquid and the bigger the clouds. As shortfills are already filled around 66% (80ml out of 120ml), the ratio can’t be altered too excessively. You can use slightly different nicotine shots to alter the ratio of a shortfill, however it doesn’t stray too far from the ratio on the bottle.

Longfills are filled with flavour concentrate suspended in PG making them versatile and able to be mixed to a more specific ratio of your choice. This means you’ll have the choice between many ratios if you use a mixing pack, and if you’re using separate VG and PG you’ll have the option of mixing to any ratio. If you’re using a mixing pack (like the ones featured with Nixer and Imp Jar) then you’ll have a choice between the more common ratios like 50/50 and 70/30 which are suitable to the majority of vapers.

Nicotine Strength

Shortfills are limited to 3mg of nicotine maximum if you’re using standard, TPD nicotine shots. A 50ml shortfill can fit 1 x 10ml shot and a 100ml shortfill has room for 2 x 10ml nic shots. If you want your shortfill stronger you’d have to empty some of the e-liquid out, therefore making the flavour weaker. 3mg is best suited to sub-ohm vaping at a 70/30 ratio, or MTL vapers who use very little nicotine. If you want a nicotine free e-liquid you’re able to vape a shortfill straight from the bottle, however you must still mix a longfill to 0mg. You can’t vape longfill straight out the bottle, so extra PG and VG need to be added before its recommended to vape, even if you want zero nicotine.

What are mixing packs?

Mixing packs are 10ml bottles that come with your longfill in order to mix it to your desired nicotine strength and ratio. This pack includes every thing you need in order to mix your longfill making it ready to vape. For example, a brand called Nixer create ‘Nixer Mixer Packs’ that come included with each Nixer bottle. This pack contains 3 x 10ml bottles that feature the right nicotine strength and PG/VG ratio’s to create your desired Nixer e-liquid. You can choose between nicotine salt or regular freebase e-liquid, making longfills even more customisable. All you need to do is open the three bottles and fully empty them into the Nixer bottle. Make sure to shake the bottle for around 3 minutes to fully combine the VG, PG, nicotine, and flavour concentrates.

what are nixer longfills?

The Nixer longfills are perfect for even beginner vapers as they require minimal work and are ready in minutes. If you’re looking to dip your toes into longfill e-liquid then Nixer or similar brands that feature a mixing pack are the best way to go. You can view our whole collection of longfill e-liquids here. 2025 is looking like a year full of fresh and new longfills being manufactured, so keep an eye on the collection throughout the year.

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