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.
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.


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.