There are many ways to solve. Are you using a Genesis style atomizer?

If so, basically, you want to keep the coils as closely and evenly wound around the Genesis as much as possible. Hotspots occur when there's a bit of coil not touching as closely to the wick as other parts.

You can try:
1) Use flat ribbon cable for your coils (this is my current setup).
2) Use Ekowool with your SS mesh wick setup.
3) Wound your coil around a drill bit that's close to your wick's diameter and install in your atomizer first without the wick (this was my old setup).
4) Try adjusting your coils with a small screwdriver (I use a jeweler's set). Move and push your coils about as you dry burn, until it all lights up evenly.

There are other ways (IIRC). But this is just some quick and dirty ways to do it.

If I make my own e-juice, 100% handblended and custom made, with flavors from completely natural sources like organic fruits, veges, etc., None of that pre-bottled flavors BS. Just pure natural flavor.

Anyone willing to try? Thinking this may be a new business for me.

Also, target price around RM50/30ml.

Of course I will test myself first la.

Maybe publish a blog about the journey to making the first batch.

Takde. Liquid blend by hand using pyrex containers/materials. I am educated as a Material Science Engineer, so my chemistry skills should be OK for this.

Harga pun tak pasti lagi. Kena tengok kos dulu. I just think the "premium" liquids in the market are too damn expensive, while the lower end is too low quality. No middle ground. I wanna make maybe 10-20% margin that's it, so the customer gets what they paid for.

Nicotine, of course with nic lah. Without nic I intend to sell cheaper in larger volumes. Maybe 100ml in one bottle. With nic maybe 30ml.

If successful, I'm thinking of opening my own online liquid store, doing purely custom orders for liquids. So you can choose your nic level, flavor intensity, sweetness, PG/VG ratio, etc.

Also kena jaga make sure no alcohol in most flavors. If got alcohol (for certain flavors like rum or vodka), then must publish big clear warnings as such.

Give me some suggestions as to what the first flavor should be. Otherwise I may start making some Henessy VSOP eliquid or some other BS.

Most common suggestion will be my first batch.

I'm thinking for fruits, I should make pure fruit flavors. The current flavors on the market I suspect use pre-packaged food flavoring, which means they really don't taste like the natural thing. I want my liquids to taste like the real thing, not the candy version of the thing.

Of course, this will mean that flavors may vary slightly from batch to batch, since you can't control the flavor of natural fruits 100%, but that's the price you pay for 100% natural flavors.

For banana, the extraction will involve alcohol, since the active flavor compound in bananas is not very soluble in water.

No, most flavors with bananas will involve artificially produced flavors. You can produce isoamyl acetate in the lab to kinda-sorta mimic the taste of bananas.

I'm trying to do all natural flavors, i.e. from actual banana fruits.

My wife specifically said NO DURIAN. So no go for that.

I did some research into ways of extracting banana flavors without alcohol, will try them soon. Being an ester based flavor is a real pain to create halal liquids.

Try google for Cikang eliquid bro. IIRC they got durian.

Never had Ocean Blue before, but if the description "menthol with a strong honey dew flavor" is accurate, then sure, I can try that too.

For your question, it really depends on what the original nicotine solution was like. The higher the nic level, the less you dilute the nicotine with the flavor and VG/PG.

From what I've surveyed so far, most of the nicotine liquid you can get are PG based, which has a faint sweet taste. So I'm not so sure it'll be bitter.

But if the nicotine was based on something else that's bitter, then yes, you would have more of a bitter taste.

Okay fellas, I know I said the most common suggestion will win, but since there weren't really any "common" suggestions, I picked the most interesting one.

I will be making Bandung Ais. It will probably be a mixture of rose syrup, sugar and menthol crystals to simulate the ice effect.

Also, I will be trying banana. Going to use Dole bananas exclusively, and see where this takes me. Ester based flavors seem to be a challenge, and I think it'll be interesting to see what I can do.

I'll be sourcing the components (VG, PG, nicotine) soon. Keep you guys posted.

From what I understand, some flavors melt plastic tanks due to a reaction between esters and polycarbonate. I don't remember from my knowledge of chemistry if all esters are bad for polycarbonate plastics, but the taste of bananas come from esters, so there may be no way to make it polycarbonate friendly.

Either way, will keep you posted. I'll probably need someone who's willing to sacrifice an old CE2 or something to test it though, since all my tanks are Pyrex.

I don't think I'll need to. Just tried to use some basic organic chem. If my rusty chem skills are accurate, exposure of polycarbonate to isoamyl acetate (banana flavor) is as follows:

n[-O-(C6H6)-(C-(CH3)2)-(C6H6)-O-(C=O)-] + CH3-(CH-CH3)-CH2-CH2-O-(C=O)-CH3 + H2O ==> -O-(C6H6)-(C-(CH3)2)-(C6H6)-O-(C=O)-O-CH2-CH2-(CH-CH3)-CH3 + CH3(+) + H2O

Again, that's if my skills are accurate as they used to be. Ester with polycarbonate results in the breaking of the polycarbonate chains, and the remaining methyl group (CH3(+)) hydrogen bonds with the oxygen atom in water (H2O).

So, really, you will end up with polycarbonate falling apart. To stop this reaction, we would have to introduce something that is more profitable to isoamyl acetate to react with, which if it happens, will destroy the flavor entirely.

If someone has better organic chem skills, feel free to correct the above.

Baca dari google la. Just search for formula of polycarbonate and ester. Then put in reaction with water (which is present in all our liquids).

Forum susah nak represent chemical names la, especially long chains.

Boleh. This weekend I will go buy the banana and syrup. See if I can even produce a flavor extract first.

Woooo, cincau. Maybe can add pandan leaf extract??

Got much inspiration here.

Basically, what I'm saying is, the banana flavor reacts with polycarbonate, breaking the chains.

Plastics with the term "poly" in it (polycarbonate, polypropylene, polystyrene, etc.) are made up of chains of molecules. So if lets say I have a plastic with formula n[XYZ], it means the molecules are formed of chains of XYZ: XYZ-XYZ-XYZ-XYZ-XYZ-blablabla to infinity all joined together.

The problem with polycarbonate is that the carbonate reacts with some flavors. You can imagine the banana flavor (isoamyl acetate) as a scissor that cuts the chain, so you end up with clear tanks falling apart. Hence why polypropylene tanks (cloudy plastic) don't have the same issue. This also happens with some citrus flavors, due to a reaction with acid.

So, what I'm saying is, it may be impossible to make banana clear tank friendly. I could add something to stop this reaction, but anything that stops the reaction also destroys the banana flavor (isoamyl acetate), because if it's not reacting with polycarbonate, it's reacting with something else. You could end up with some dangerous chemical.

Anyway, I'll give it a shot with clear tanks, see if my theory holds true.

Bros, mana nak beli pure nicotine? Seems like most stores don't carry DIY supplies.