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100ml Shortfill

A 100ml shortfill is bigger bottle of vape juice with no nicotine, and just enough space left to add your own. They usually come in 120ml bottles, filled to the 100ml mark, so you can add a couple of nicotine shots and end up with something around 3mg strength. 100ml shortfill makes sense if you're vaping regularly and getting tired of burning through 10ml bottles every other day. At Immyz, we stock a proper range of shortfills in all sorts of flavours, fruits, tobaccos, menthols, desserts, plus the nic shots to go with them. Just pick your 100ml vape liquid, mix it how you like, and you’re good to go.

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Why Vapers Use 100ml Shortfill

Sub-ohm vaping burns through juice fast. If you’re on a high-powered kit, you might finish a 10ml bottle before lunch. A 100ml vape liquid gives you a much bigger reserve and lets you choose your own nicotine level. For most people using this type of setup, 3mg is the sweet spot, and that’s what you’ll get by adding two 10ml nic shots at 18mg or 20mg into the shortfill.

Want a stronger hit? Going for 6mg means adding four shots, which is fine in theory, but you’ll need a separate bottle to mix it properly. Cramming it all into the same shortfill bottle won’t work, and you’ll likely water down the flavour. Most shortfills sit around 70/30 VG/PG, which suits direct-lung vaping and produces thick clouds. The UK regulations cap ready-mixed nicotine e-liquid at 10ml per bottle. With 100ml e liquid, you still get your big bottle without breaking the rules.

100ml shortfill
100ml shortfills

How to Mix Nic Shots in 100ml Shortfill

Before you mix anything, check what your base is. If your shortfill is mostly VG, and most are, then use VG-based nic shots to match. If you drop in PG-heavy shots, you’ll thin the liquid and possibly mess with how it wicks. It can lead to spitback, leaking, or dry hits, depending on your setup. Two 10ml nic shots in a vape liquid 100ml will give you about 3mg strength. If you’re aiming for higher, you’ll need a larger mixing bottle. Don’t try squeezing everything into the same bottle.

To mix, pop the cap and nozzle off carefully. Some bottles are stubborn, and it’s easy to snap the nozzle if you rush. Add your nic shots, push the cap back on, and give it a good shake. Sixty seconds of solid shaking should be enough. Let it steep if you're using a richer flavour, tobaccos and custards. Leaving your 100ml vape liquid overnight or for a couple of days helps round off any harsh notes. Fruity or menthol blends are usually ready to vape right after mixing.

Frequently Asked Questions

Can you take 100ml of vape juice on a plane?

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Yes, as long as the label clearly says 100ml or less, and it fits in your airport liquids bag. The issue is that most 100ml shortfills come in 120ml bottles, even though only 100ml is inside. Airport security often goes by the printed capacity, not what’s actually in it. If in doubt, put it in your checked bag or transfer it into a labelled 100ml bottle.

How long does 100ml of vape juice last?

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That depends entirely on how you vape. If you’re chain-vaping at 80 watts, 100ml shortfill might only last close to a week. Use a pod system at lower power, and you could stretch it for three weeks or more. If you’re down to your last bit, it's always handy to have a spare to avoid running out.

How many puffs is 100ml of vape liquid?

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There’s no exact number, but somewhere in the ballpark of 20,000 or so can be expected. It all depends on your coil resistance, wattage, and how long your puffs are. Short draws at low power will make it last. Long, deep pulls on a high-powered kit will burn through it quickly.

How many nic shots for 100ml shortfill to make 18mg?

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You’d need at least five or six 10ml shots to get close to 18mg strength, and there’s no way that’s fitting in a standard 120ml shortfill bottle. You’d also flatten the flavour completely. If you're after high nicotine, you'd be better off buying ready-mixed 10ml bottles designed for mouth-to-lung vaping.

Is 2 year old vape juice still safe?

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Possibly, but it’s a gamble. If it’s been sealed and stored out of sunlight in a cool spot, it might still be alright. But nicotine breaks down over time and can turn bitter. Flavours fade too. Give it a sniff and if it smells strange or looks darker than usual, bin it. It’s not worth the risk.
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