Setup: Recoil w/ flavor barrel, Dual 15 wrap 26g 3mm Nifethal 70 coils @.17 ohms. 60w power, 450F temp limit. Full Cotton Wicks.

Testing: FA Black Fire @ .5%, 60/40 VG/PG, Steeped 10 days.

Flavor Description: Actual wood charcoal aroma, and some random white sugar. Just as odd as it sounds. The "fire" part of this tastes exactly like a bag of natural hardwood charcoal smells. Some pretty spot on refined sugar underneath all that.

Inhale is mostly a light sweetness. Moderately dense, sort of non-descript liquid smoke kind of tang. Exhale has all the "fire". Does a good job of smelling like a dead campfire. I wish I could go all rainman and say that it's "X kind of wood smoke," but what I can say is that tastes pretty middle of the road with no chemical off-flavors or strange spicy notes. Not as warm and vibrant as actual wood smoke, but nothing super objectionable and not ashy. Moderately dense mouthfeel overall. That raw sugar note is underneath the fire and becomes more noticeable as the exhale finishes up, lingering just a bit on the tongue while the fire part of this lives in your sinuses.

Off-flavors: Well, you're in it for the charcoal notes, but that sugar thing is a bit weird.

Throat Hit: Light, pretty mellow considering the subject matter.

Uses & Pairings: This is exclusively for blending, and it works well to add an actual touch of smoke or char.

It's a good tobacco additive, adding some heft and realism without going sour or ashy. Lots of talk about using this at a low percentage to emulate an actual cigarette or cigar.

You ever use a fancyish smoker to bake something? This concentrate does a good job adding that weird but interesting note to deserts. If you have any kind of plans to do a s'more, i'd call this damn near essential. The sweet note will blend right in with just anything you throw at it.

This will be tricky to use with fruits. The smoke note is all wood smoke and so it doesn't do a great job of actually tasting like a smoky fruit, instead just tasting like some smoke, then a fruit.

Notes: In terms of usage, start low and work up. Like .05% or a couple drops per 10ml will work to add that smoky edge to pastries and deserts. That can be brought up a bit, depending on how aggressive you want the smoke but it starts to get a bit distracting and doesn't layer well after .25%. As a tobacco additive, my go to is usually .5% but it does tend to sweeten a mix pretty quickly. Maybe keep it limited to your sweeter blends.

A super interesting flavor, with some really specific applications. I'm a fan of this stuff, but it may be a bit polarizing.

Second Opinions:

I've been saying obligatory, but Head In Clouds did something commendable making his Flavour Art Notes available for the community. Here's the note on Black Fire:

"This is smoke flavor without tobacco notes. If you want to mimic the effect of actually smoking, you probably need this flavoring. Black Fire is most often used with tobaccos to add an authentic smokiness to the exhale. Get your tobacco recipe to your liking, then add Black Fire in small steps, just 0.25% or 0.5% at a time, for the realistic effect of real smoke on the exhale. It does not alter the tobacco flavors - just adds smokiness.If you use too much, you'll taste hickory flavor."

/u/T_Mace calls it campfire smoke a couple times in the comments on this post.

DIY_eJuice Flavor Reviews

EDIT: Parentheses. My links were showing.