Old Goat
Administrator
Before you butcher a perfectly good recipe, this guide will help you work out whether the problem is actually your e-liquid—or the contraption currently cooking it.
A DIY mixer recently ran into a problem that has confused more vapers than we care to admit.
His Almond Joy mix tasted good in a pod but turned soapy on a mod.
Same bottle. Same e-liquid. One device says chocolate, coconut and almond. The other apparently says bathroom at a cheap hotel.
The first suspect was the 50/50 PG/VG ratio.
No.
PG did not climb out of the bottle during the night, steal a bar of Lux and rub it all over the almond concentrate.
If the same liquid tastes good in one device and bloody awful in another, the recipe has not changed. The hardware has.
Before you reduce flavours, increase flavours, add sweetener or perform an exorcism over the mixing desk, put the device in the interrogation chair.
The atomiser is part of the recipe
We talk about recipes as though the bottle contains the finished flavour.
It does not.
The bottle contains the ingredients. The atomiser decides how those ingredients are delivered to your mouth and nose.
Research has shown that power, voltage, device configuration and puffing conditions can change aerosol delivery. One study found that increasing voltage substantially changed nicotine yield, while another found large differences in aerosol mass across devices and power settings. Neither paper tells us which setup tastes best, but both confirm the bit that matters here: changing the hardware changes what it delivers. (Talih et al.; Gillman et al.)
Flavour is not merely your tongue detecting “chocolate.”
The NIDCD explains that aroma, basic tastes, temperature, texture and chemical sensations combine to create what we experience as flavour.
Change the heat, airflow and density of the aerosol and you can change how that flavour presents itself.
The bottle writes the music. Your atomiser chooses the bloody speakers.
Why hardware changes the flavour
1. The coil is not just a resistance number
A small pod coil, a simple round-wire build and a pair of chunky Alien coils are not the same heater simply because they all display an ohm reading.
They differ in construction, wire mass, surface area and the amount of e-liquid touching heated metal.
Resistance is one measurement. It does not tell you the whole story.
Two coils with similar resistance can still heat differently and present a recipe differently. That does not mean the largest, fanciest coil automatically wins. It means that changing the coil changes the test.
If Version 1 was tested on a pod coil and Version 2 on dual Aliens, you have not made a clean comparison. You have changed both the recipe and the stove.
2. Wattage changes more than cloud size
More power means more energy going into the coil. That usually produces more aerosol and a warmer vape, but the same wattage does not guarantee the same result on different coils.
A warmer setup might bring out the body in a chocolate, custard or bakery flavour. It can also drag an unpleasant edge out of a nut, coconut, cooling agent or fruit concentrate that seemed perfectly polite in a cooler pod.
The pod may be hiding the off-note. The larger setup may be exposing it.
That is a possibility to test—not a universal rule declaring that all almond turns into soap at 40 watts.
Do not solve every weak flavour by cranking up the power. Excessive heat or poor liquid supply can overheat the wick and e-liquid. Power changes aerosol production and can also increase unwanted thermal breakdown products.
More wattage is a control, not a seasoning.
3. Airflow can rearrange the entire vape
Airflow cools the coil, mixes air into the aerosol and changes how warm, dense and concentrated the vape feels.
Then we have airflow direction.
Air arriving underneath the coil does not behave exactly like air striking it from the side. Top airflow, bottom airflow, narrow slots and huge open cyclops holes can all present the same build differently.
Even the position of the coil relative to the airflow matters.
There is no sacred airflow setting that suits every recipe. There is only one useful rule for testing:
Choose a setting and leave the damn thing alone.
If you adjust the airflow every time you drip a new sample, record the change. Otherwise, you are introducing another variable and pretending it did not happen.
4. The chamber and chimney are not innocent
An RDA cap, an RTA chamber, a tank chimney and a pod mouthpiece all give the aerosol a different journey.
The space around the coil, the distance to your mouth and the shape of that route affect how the aerosol mixes with air, cools and condenses.
This is why two atomisers fitted with similar builds can still taste completely different.
One may deliver a warm, dense mouthful of dessert. Another may stretch it out, cool it down and turn the carefully layered recipe into a vague brown suggestion.
Our earlier discussion about the value of an RDA touches on exactly why this control matters to DIY mixers.
5. Old cotton is a lying little bastard
Before blaming the recipe, inspect the wick and coil.
Old cotton, coil deposits and residue from the previous e-liquid can create off-notes that were never in the bottle.
Chocolate, coffee, creams, nuts, sweeteners and strong cooling agents are particularly good at refusing to leave. That tiny trace of yesterday’s recipe may combine with today’s recipe and create something neither mixer nor flavour manufacturer intended.
If every juice suddenly tastes strange on one atomiser, it is unlikely that six bottles all suffered a nervous breakdown together.
Clean the hardware. Rewick it. Then test again.
6. PG/VG matters—but it is not the answer to everything
Let’s clear up one important point first.
Most DTL e-liquid is mixed at around 70VG/30PG. That thicker, higher-VG ratio is generally better suited to the larger juice channels, higher power and greater liquid consumption of typical DTL hardware.
A 50VG/50PG mix is more commonly associated with pods and MTL setups. It is thinner, normally carries flavour more sharply and can produce a stronger throat sensation.
That does not mean 50/50 cannot be vaped DTL. It means it is not the usual DTL starting point, and the experience may be noticeably different—especially when you move the same liquid from a modest pod into a more powerful mod and atomiser.
PG and VG have different viscosities and aerosol properties, so the ratio affects how the liquid feeds through the wick and how the vape presents itself.
But PG/VG is still not a universal scapegoat.
One controlled study comparing different ratios found limited differences in several subjective measures under its specific test conditions. The researchers also noted that other devices and usage patterns could produce different results. (Smith et al.)
So yes, putting a 50/50 pod-style mix through more aggressive DTL hardware may make it feel sharper or expose parts of the recipe that the pod softened.
What it does not do is prove that the ratio manufactured a soapy flavour from thin air.
The 50/50 ratio belongs on the suspect list. It does not get convicted before we check the coil, cotton, contamination, power and individual concentrates.
It is one variable. Stop giving it mystical powers.
7. Complex recipes have more places to go wrong
A simple one-shot fruit may transfer reasonably well between devices.
A layered dessert containing several chocolates, creams, nuts, coconut and sweetener has far more moving parts.
A small pod might blend those flavours into one pleasant whole. A larger or hotter setup might separate them and expose one concentrate waving a filthy chemical note in the air.
Neither device is necessarily lying. They are showing different parts of the same recipe.
Every serious mixer needs a reference platform
If you test Version 1 in a pod, Version 2 in an RTA and Version 3 on an RDA with fresh cotton, you have tested three recipes under three different conditions.
You cannot honestly say which recipe adjustment worked.
You are guessing in a lab coat.
For every new DTL recipe, I use the same reference platform:
That is my reference setup. It is not a commandment handed down by the Ohm Lord, and I am not telling you to copy it.
The important part is not that it uses a HellBeast or Alien coils. The important part is that I keep the atomiser, coil specification, cotton, power and airflow the same.
When I change the recipe, the recipe is the variable.
That gives me a fighting chance of learning something useful.
My MTL and salt-nic reference platform is still being refined. The Blaze MTL RTA is doing a very good job so far, but I am not declaring an unfinished method to be gospel merely because the first results look promising.
Build your own reference platform
You need:
An RDA is convenient because it is easy to clean, rewick and move between samples. It is not compulsory.
If you develop e-liquid specifically for a pod, that pod can be your reference platform. If you formulate for an RTA, use a consistent RTA setup.
Consistency matters more than owning the biggest collection of shiny hardware in the village.
The controlled troubleshooting method
1. Stop attacking the bottle
Do not add more flavour. Write down the exact concentrate names, manufacturers, percentages, PG/VG ratio, nicotine strength and mixing date.
Once extra concentrate enters the bottle, you cannot politely ask it to leave again.
2. Clean the suspect device
Clean the atomiser and mouthpiece. Fit fresh cotton or a known-good coil.
Make sure the ghost of last week’s coffee custard is not still living in the chimney.
3. Test a familiar e-liquid
Use something whose normal flavour you know well.
If that also tastes soapy, burnt, metallic or strange, the DIY recipe has not been convicted. The problem is probably the coil, wick, residue, power setting, device—or your senses.
4. Return to your reference setup
Use your established atomiser, coil, cotton, wattage and airflow.
Do not fiddle with everything until the recipe eventually surrenders and tastes acceptable. You may find a pleasant vape, but you will learn bugger-all about why it changed.
5. Describe what you actually taste
Record the main flavour, supporting flavours, sweetness, warmth, throat sensation, separation between layers and any floral, chemical, burnt, metallic or soapy note.
“Nice” and “rubbish” are verdicts. They are not useful development notes.
6. Change one hardware variable
Once the recipe has been tested on the reference platform, move it to the intended device.
Change only one variable where practical. Adjust the power slightly, then retest. Return it to the original setting before changing the airflow.
If you change the coil, wattage and airflow together, you have started a new experiment whether you admit it or not.
7. Decide whether the recipe needs changing
If the off-note appears only on one hotter setup, that device may be exposing a weakness the pod hides.
If every e-liquid tastes wrong on the same device, stop reformulating. The hardware is standing there with chocolate smeared across its face.
8. Make a small new version
Once you have identified a likely recipe problem, mix a small corrected version.
Reduce or remove one suspected ingredient. Keep everything else unchanged and return to the reference platform.
Do not “repair” the entire original bottle unless the small test proves the change works.
9. Verify it where it will actually be vaped
A recipe intended for a pod must eventually work in a pod. A DTL recipe must survive suitable DTL hardware.
The reference setup is your measuring instrument. The intended hardware is the final examination.
A recipe can be excellent on your testing RDA and completely unsuitable for the pod your customer actually uses.
Quick troubleshooting
Safety before cleverness
For rebuilding fundamentals, read From Wire to Wick and Ohm’s Law for Vapers.
Common ways mixers ruin their own testing
Your memory is not a laboratory instrument. Mine occasionally struggles to remember why I walked into the kitchen.
Write it down.
FAQ
Do I need an RDA for testing DIY recipes?
No. An RDA is quick to clean and rewick, which makes it an excellent tool, but a consistent pod or tank can also become a useful reference platform.
Can one recipe need separate pod and DTL versions?
Absolutely. Different hardware may require a different flavour balance, PG/VG ratio or nicotine strength. That is formulation, not failure.
Does lower resistance mean better flavour?
No. Resistance is one number inside a much larger system.
Did the 50/50 ratio cause the soapy note?
Not by itself. It may affect wicking and presentation, but first check the coil, cotton, residue, power and individual concentrates.
Should I increase the flavour percentages for a pod?
Only if controlled testing shows that the recipe needs it. Adding more concentrate can make a weak mix stronger—or turn it into a crowded mess.
How often should I rewick?
When the flavour changes, deposits build up or the cotton is no longer performing properly. For important comparisons, begin from a known clean baseline.
The Old Goat verdict
A mixer who changes the recipe, coil, cotton, airflow and wattage at the same time is not testing.
He is gambling with concentrates.
Choose a reference platform. Keep it stable. Change one thing at a time and write down what happened. Then test the finished recipe on the hardware it was actually designed for.
And before you execute a perfectly innocent bottle of e-liquid, make damn sure it is not the atomiser standing behind you holding the soap.
A DIY mixer recently ran into a problem that has confused more vapers than we care to admit.
His Almond Joy mix tasted good in a pod but turned soapy on a mod.
Same bottle. Same e-liquid. One device says chocolate, coconut and almond. The other apparently says bathroom at a cheap hotel.
The first suspect was the 50/50 PG/VG ratio.
No.
PG did not climb out of the bottle during the night, steal a bar of Lux and rub it all over the almond concentrate.
If the same liquid tastes good in one device and bloody awful in another, the recipe has not changed. The hardware has.
Before you reduce flavours, increase flavours, add sweetener or perform an exorcism over the mixing desk, put the device in the interrogation chair.
The atomiser is part of the recipe
We talk about recipes as though the bottle contains the finished flavour.
It does not.
The bottle contains the ingredients. The atomiser decides how those ingredients are delivered to your mouth and nose.
Research has shown that power, voltage, device configuration and puffing conditions can change aerosol delivery. One study found that increasing voltage substantially changed nicotine yield, while another found large differences in aerosol mass across devices and power settings. Neither paper tells us which setup tastes best, but both confirm the bit that matters here: changing the hardware changes what it delivers. (Talih et al.; Gillman et al.)
Flavour is not merely your tongue detecting “chocolate.”
The NIDCD explains that aroma, basic tastes, temperature, texture and chemical sensations combine to create what we experience as flavour.
Change the heat, airflow and density of the aerosol and you can change how that flavour presents itself.
The bottle writes the music. Your atomiser chooses the bloody speakers.
Why hardware changes the flavour
1. The coil is not just a resistance number
A small pod coil, a simple round-wire build and a pair of chunky Alien coils are not the same heater simply because they all display an ohm reading.
They differ in construction, wire mass, surface area and the amount of e-liquid touching heated metal.
Resistance is one measurement. It does not tell you the whole story.
Two coils with similar resistance can still heat differently and present a recipe differently. That does not mean the largest, fanciest coil automatically wins. It means that changing the coil changes the test.
If Version 1 was tested on a pod coil and Version 2 on dual Aliens, you have not made a clean comparison. You have changed both the recipe and the stove.
2. Wattage changes more than cloud size
More power means more energy going into the coil. That usually produces more aerosol and a warmer vape, but the same wattage does not guarantee the same result on different coils.
A warmer setup might bring out the body in a chocolate, custard or bakery flavour. It can also drag an unpleasant edge out of a nut, coconut, cooling agent or fruit concentrate that seemed perfectly polite in a cooler pod.
The pod may be hiding the off-note. The larger setup may be exposing it.
That is a possibility to test—not a universal rule declaring that all almond turns into soap at 40 watts.
Do not solve every weak flavour by cranking up the power. Excessive heat or poor liquid supply can overheat the wick and e-liquid. Power changes aerosol production and can also increase unwanted thermal breakdown products.
More wattage is a control, not a seasoning.
3. Airflow can rearrange the entire vape
Airflow cools the coil, mixes air into the aerosol and changes how warm, dense and concentrated the vape feels.
Then we have airflow direction.
Air arriving underneath the coil does not behave exactly like air striking it from the side. Top airflow, bottom airflow, narrow slots and huge open cyclops holes can all present the same build differently.
Even the position of the coil relative to the airflow matters.
There is no sacred airflow setting that suits every recipe. There is only one useful rule for testing:
Choose a setting and leave the damn thing alone.
If you adjust the airflow every time you drip a new sample, record the change. Otherwise, you are introducing another variable and pretending it did not happen.
4. The chamber and chimney are not innocent
An RDA cap, an RTA chamber, a tank chimney and a pod mouthpiece all give the aerosol a different journey.
The space around the coil, the distance to your mouth and the shape of that route affect how the aerosol mixes with air, cools and condenses.
This is why two atomisers fitted with similar builds can still taste completely different.
One may deliver a warm, dense mouthful of dessert. Another may stretch it out, cool it down and turn the carefully layered recipe into a vague brown suggestion.
Our earlier discussion about the value of an RDA touches on exactly why this control matters to DIY mixers.
5. Old cotton is a lying little bastard
Before blaming the recipe, inspect the wick and coil.
Old cotton, coil deposits and residue from the previous e-liquid can create off-notes that were never in the bottle.
Chocolate, coffee, creams, nuts, sweeteners and strong cooling agents are particularly good at refusing to leave. That tiny trace of yesterday’s recipe may combine with today’s recipe and create something neither mixer nor flavour manufacturer intended.
If every juice suddenly tastes strange on one atomiser, it is unlikely that six bottles all suffered a nervous breakdown together.
Clean the hardware. Rewick it. Then test again.
6. PG/VG matters—but it is not the answer to everything
Let’s clear up one important point first.
Most DTL e-liquid is mixed at around 70VG/30PG. That thicker, higher-VG ratio is generally better suited to the larger juice channels, higher power and greater liquid consumption of typical DTL hardware.
A 50VG/50PG mix is more commonly associated with pods and MTL setups. It is thinner, normally carries flavour more sharply and can produce a stronger throat sensation.
That does not mean 50/50 cannot be vaped DTL. It means it is not the usual DTL starting point, and the experience may be noticeably different—especially when you move the same liquid from a modest pod into a more powerful mod and atomiser.
PG and VG have different viscosities and aerosol properties, so the ratio affects how the liquid feeds through the wick and how the vape presents itself.
But PG/VG is still not a universal scapegoat.
One controlled study comparing different ratios found limited differences in several subjective measures under its specific test conditions. The researchers also noted that other devices and usage patterns could produce different results. (Smith et al.)
So yes, putting a 50/50 pod-style mix through more aggressive DTL hardware may make it feel sharper or expose parts of the recipe that the pod softened.
What it does not do is prove that the ratio manufactured a soapy flavour from thin air.
The 50/50 ratio belongs on the suspect list. It does not get convicted before we check the coil, cotton, contamination, power and individual concentrates.
It is one variable. Stop giving it mystical powers.
7. Complex recipes have more places to go wrong
A simple one-shot fruit may transfer reasonably well between devices.
A layered dessert containing several chocolates, creams, nuts, coconut and sweetener has far more moving parts.
A small pod might blend those flavours into one pleasant whole. A larger or hotter setup might separate them and expose one concentrate waving a filthy chemical note in the air.
Neither device is necessarily lying. They are showing different parts of the same recipe.
Every serious mixer needs a reference platform
If you test Version 1 in a pod, Version 2 in an RTA and Version 3 on an RDA with fresh cotton, you have tested three recipes under three different conditions.
You cannot honestly say which recipe adjustment worked.
You are guessing in a lab coat.
For every new DTL recipe, I use the same reference platform:
- HellBeast RDA
- Dual Alien coils
- Three 26 AWG cores with a 36 AWG outer wrap in each coil
- 3mm internal diameter
- Five wraps
- One Cloud cotton
- 60W
- Airflow completely open
That is my reference setup. It is not a commandment handed down by the Ohm Lord, and I am not telling you to copy it.
The important part is not that it uses a HellBeast or Alien coils. The important part is that I keep the atomiser, coil specification, cotton, power and airflow the same.
When I change the recipe, the recipe is the variable.
That gives me a fighting chance of learning something useful.
My MTL and salt-nic reference platform is still being refined. The Blaze MTL RTA is doing a very good job so far, but I am not declaring an unfinished method to be gospel merely because the first results look promising.
Build your own reference platform
You need:
- One reliable atomiser or pod
- The same coil specification or build for every comparison
- The same cotton
- A regulated mod in proper working condition
- One fixed power setting
- One fixed airflow position
- Clean, labelled sample bottles
- A familiar control e-liquid
- Notes recording the recipe version, date and test conditions
An RDA is convenient because it is easy to clean, rewick and move between samples. It is not compulsory.
If you develop e-liquid specifically for a pod, that pod can be your reference platform. If you formulate for an RTA, use a consistent RTA setup.
Consistency matters more than owning the biggest collection of shiny hardware in the village.
The controlled troubleshooting method
1. Stop attacking the bottle
Do not add more flavour. Write down the exact concentrate names, manufacturers, percentages, PG/VG ratio, nicotine strength and mixing date.
Once extra concentrate enters the bottle, you cannot politely ask it to leave again.
2. Clean the suspect device
Clean the atomiser and mouthpiece. Fit fresh cotton or a known-good coil.
Make sure the ghost of last week’s coffee custard is not still living in the chimney.
3. Test a familiar e-liquid
Use something whose normal flavour you know well.
If that also tastes soapy, burnt, metallic or strange, the DIY recipe has not been convicted. The problem is probably the coil, wick, residue, power setting, device—or your senses.
4. Return to your reference setup
Use your established atomiser, coil, cotton, wattage and airflow.
Do not fiddle with everything until the recipe eventually surrenders and tastes acceptable. You may find a pleasant vape, but you will learn bugger-all about why it changed.
5. Describe what you actually taste
Record the main flavour, supporting flavours, sweetness, warmth, throat sensation, separation between layers and any floral, chemical, burnt, metallic or soapy note.
“Nice” and “rubbish” are verdicts. They are not useful development notes.
6. Change one hardware variable
Once the recipe has been tested on the reference platform, move it to the intended device.
Change only one variable where practical. Adjust the power slightly, then retest. Return it to the original setting before changing the airflow.
If you change the coil, wattage and airflow together, you have started a new experiment whether you admit it or not.
7. Decide whether the recipe needs changing
If the off-note appears only on one hotter setup, that device may be exposing a weakness the pod hides.
If every e-liquid tastes wrong on the same device, stop reformulating. The hardware is standing there with chocolate smeared across its face.
8. Make a small new version
Once you have identified a likely recipe problem, mix a small corrected version.
Reduce or remove one suspected ingredient. Keep everything else unchanged and return to the reference platform.
Do not “repair” the entire original bottle unless the small test proves the change works.
9. Verify it where it will actually be vaped
A recipe intended for a pod must eventually work in a pod. A DTL recipe must survive suitable DTL hardware.
The reference setup is your measuring instrument. The intended hardware is the final examination.
A recipe can be excellent on your testing RDA and completely unsuitable for the pod your customer actually uses.
Quick troubleshooting
- Good in a pod, soapy on a mod: Clean the hardware, rewick it and test a familiar juice before touching the recipe.
- Good in an RDA, dull in a pod: Test with a fresh pod before deciding the flavour percentage is too low.
- Good on fresh cotton, worse later: Inspect the coil for deposits and rewick.
- Flavour changes when airflow moves: Pick one airflow setting for comparisons.
- Harshness increases with power: Reduce the power and stop if the wick tastes dry.
- Every juice tastes wrong: Try a clean second device and a familiar e-liquid.
Safety before cleverness
- Use a regulated mod in good working order.
- Inspect batteries, wraps and atomiser connections.
- Measure an installed rebuildable coil and check for shorts before use.
- Stay within the manufacturer’s stated range for replaceable coils.
- Stop if you detect a dry hit, unusual heat, leaking or unstable resistance.
- Never dry-fire cotton.
- Do not blindly increase wattage to chase flavour.
- Handle nicotine according to the supplier’s safety instructions and keep it away from children and pets.
- If familiar foods, drinks and e-liquids all taste distorted, stop blaming the recipe. A persistent or sudden change in taste or smell deserves proper medical attention.
For rebuilding fundamentals, read From Wire to Wick and Ohm’s Law for Vapers.
Common ways mixers ruin their own testing
- Changing the recipe before checking the hardware
- Comparing old cotton with fresh cotton
- Testing each version in a different atomiser
- Adjusting wattage and airflow simultaneously
- Assuming lower resistance automatically means better flavour
- Blaming PG/VG for every odd note
- Adding more flavour whenever a mix tastes weak
- Developing only on an RDA when the recipe is intended for a pod
- Keeping no notes and trusting memory
Your memory is not a laboratory instrument. Mine occasionally struggles to remember why I walked into the kitchen.
Write it down.
FAQ
Do I need an RDA for testing DIY recipes?
No. An RDA is quick to clean and rewick, which makes it an excellent tool, but a consistent pod or tank can also become a useful reference platform.
Can one recipe need separate pod and DTL versions?
Absolutely. Different hardware may require a different flavour balance, PG/VG ratio or nicotine strength. That is formulation, not failure.
Does lower resistance mean better flavour?
No. Resistance is one number inside a much larger system.
Did the 50/50 ratio cause the soapy note?
Not by itself. It may affect wicking and presentation, but first check the coil, cotton, residue, power and individual concentrates.
Should I increase the flavour percentages for a pod?
Only if controlled testing shows that the recipe needs it. Adding more concentrate can make a weak mix stronger—or turn it into a crowded mess.
How often should I rewick?
When the flavour changes, deposits build up or the cotton is no longer performing properly. For important comparisons, begin from a known clean baseline.
The Old Goat verdict
A mixer who changes the recipe, coil, cotton, airflow and wattage at the same time is not testing.
He is gambling with concentrates.
Choose a reference platform. Keep it stable. Change one thing at a time and write down what happened. Then test the finished recipe on the hardware it was actually designed for.
And before you execute a perfectly innocent bottle of e-liquid, make damn sure it is not the atomiser standing behind you holding the soap.