I'm not aware of any steeping methods to increase the TH. The older the nicotine gets and more it's exposed to oxygen the more it will oxidize, making it harsher and darker in color, and possibly peppery. Generally a mix will become smoother with steeping.
I'd recommend purchasing nicotine specifically formulated for TH, such as Nicotine Rivers hit salts. FlavorArt also makes a "flavor" called Flash that supposedly enhances TH, which I have not personally tried.
What device do you use? Have you tried increasing the power or even a different build?
Koko Caliburn, that why I want strong th
I have that same device for stealthy vaping and use the hit salts (PG) from River Supply (formerly Nicotine River). For reference, I would mix it at 6mg/ml strength and felt the TH was sufficient. I normally use a dripper and mix at 3mg nic (half VG freebase half PG salt).
Flash isn't that good... My wife loves a good throat hit in her MTL vape so I purchased some for her mixes and she said that it's not what you want and adds a weird flavor...
I have heard some people say this, but personally I did find Flash to add a nice throat hit to most juices, so I guess it varies on a person to person basis. I did notice if I didn't add enough that I couldnt tell it was there, but adding another 10-20 drops usually did the trick.
It definitely mixes better with some flavors then others. It can make light fruity juices taste off, especially if you add too much. But I found richer flavors and especially tobacco blends to hide the taste completely.
Hi. 30ml of eJuice at 12mg is just as strong as 10ml of eJuice at 12mg. 12mg = 12mg.
10ml of 12mg.
And 30ml of 12mg is the same thing.
Pg is what gives throat hit.
I feel that PG adds more full lung 'harshness', more like that of smoke from a cigarette while the nicotine adds the TH or throat burn that's more pleasurable.
Might seem that way...
But Pg is the main ingredient to thump in your throat.
High mg freebase nicotine gets harsher as you go up.
I don't get harhness and i vape up to 80pg.
Harshness is from using wrong build or coil with wrong mg freebase or from certain flavorings or from trash nicotine.
But you are correct..harshness and throat hit are two diff things.
You juice should feel harsh under correct conditions.
I too am a throat hit junky. I recommend getting a little bottle of Flavor Art flash. Its basically a throat hit additive, just add 10-30 drops per 60ml and it can give even the smoothest juice a nice kick. Just be warned it can mute some lighter fruitier flavors if you overdo it. FA flash is the only reason I was able to use a caliburn as long as I did because I was finding even 55-60mg salts were giving me little to no throat hit without it.
No-one has mentioned it but the maths are off. Your calculator is doing:
2 * 10ml (nicshot) * 20mg/ml = 400mg of nicotine total
400mg / 30ml (shortfill) = 13.33mg/ml final strength.
However that doesn't account for the liquid in the shortfill itself. The true strength is:
400mg / (30+20)ml = 8mg final strength
This is why you're not getting the same throat hit. Really, you'd need to add 4 nicshots, to get 800mg/70ml = 11.4mg strength. Can't comment on whether you'll lose too much flavour, that'll depend on the shortfill.
A better, cheaper way to get 12mg would be to try and get ahold of 72mg nicotine. I'm guessing you're under the TPD so it's not legal, but there are still sites online selling it, NicHub is a good one in the UK. 6ml of 72mg nic in a 30ml shortfill would give you 36ml of 12mg liquid.