Analysis of 20 Common Vape E-liquid Issues

2025-09-30

You may have many questions about vape liquids - don't worry!

This article will answer 20 of the most common questions in a simple and easy-to-understand way.

1. Why does vaping cause a dry mouth?😮‍💨

This is perfectly normal.

The main components of e-liquid - VG (Vegetable Glycerin) and PG (Propylene Glycol) - are hygroscopic, meaning they absorb moisture. This can temporarily reduce saliva and cause a dry mouth.

If you happen to be among those with low saliva production, simply drink more water. There's no need to deliberately change your e-liquid to avoid dry mouth.

The main components of e-liquid inherently have some hygroscopicity, which can cause a slight dry mouth sensation.This is a common characteristic in the industry and cannot be completely eliminated by any specific brand or formula.

2.Why does e-liquid need to be left to stand for a period of time after opening or filling?🧪⏳

E-liquid is composed of a variety of complex chemical substances with high molecular weights. It also includes various flavorings and contains both oily and watery substances.

Although their densities are very similar, they can still separate, just like water and oil.

Letting the e-liquid stand for a period of time allows these substances to fully blend and eventually reach equilibrium.

3.Is it difficult to make your own e-liquid? Is it safe?⚠️

Making your own e-liquid isn't difficult in itself. Once you've chosen the ingredients, simply follow the recipe.

The real risk in DIY e-liquid lies in the reliability of the raw materials.

If you DIY, choose materials from suppliers with:

  • FDA certification

  • USP grade

  • EP grade

Simply chasing the lowest price is definitely not a good idea, since it's something you inhale.

4.Why does my e-liquid have no taste when I smoke it in my mouth?🛠️

Everyone's experience with vape liquid is different. For some heavy smokers, the feeling of vapes may not meet their expectations, which is perfectly normal.

However, novice users sometimes encounter insufficient vapor production due to device settings issues. Lacking the sensory experience of vapes, they may mistakenly believe that vapes have no flavor.

In fact, a high-quality vape liquid, besides differences in flavor profile, should have a rich and sweet overall taste.

5.Why does the smoke from this vaporizer not taste as good as the other one?🌬️

Different atomizers have unique airflow and vaporization characteristics.
Even experienced users only stick to one or two favorites long term.

Beginner tip:
➡ Choose popular, well-reviewed atomizers rather than relying on advertising or appearance.

6.What should I do if the e-liquid is too sweet and cloying?🍬🤔

Some e-liquids are inherently sweet. If you find it too sweet, the flavor might not be suitable for you.

However, it could also be because the e-liquid wasn't allowed to fully settle before use.
👉 You can choose to let it sit for two weeks before trying it,
👉 add VG to dilute the flavor,
👉 or simply switch to a different flavor.

Therefore, when trying a new e-liquid for the first time, we don't recommend buying many large bottles at once, as the flavor might not suit you.

Most experienced users buy small bottles first, decide which flavor they want to try, and then buy several larger bottles of the same flavor later. ✔️

7.What is the throat hit sensation?🚬➡️😮‍💨

This is a tricky question to answer. The moment the vapor is inhaled, the nicotine in it causes a slight irritation to your throat, similar to the sensation of inhaling a cigarette.

However, cigarettes contain many other chemicals besides nicotine when burned, making the irritation more intense.

Vapes don't have that strong irritation; they only simulate the feeling of inhaling a cigarette. It's inaccurate to say they taste exactly like cigarettes.

⚠️Therefore, when buying a vape, be wary of any seller claiming it tastes the same as a real cigarette.

8.What are VG and PG?🧪💧

VG refers to Vegetable Glycerin, also known as glycerol.
Glycerin is one of the two main base solutions in e-liquid and a primary source of vapor.
💨 The higher the glycerin content, the more vapor the e-liquid produces.

PG refers to Propylene Glycol, also known as propylene glycol.
It is the other base solution in e-liquid.
Its role in e-liquid is to dissolve flavorings and mix with other solutions, while also providing a certain throat hit.

9.Why do I feel dizzy after just two puffs?😵‍💨

Everyone's tolerance to nicotine is different. E-liquid itself contains nicotine.

If you experience dizziness while vaping, you can try e-liquid with low nicotine content or nicotine-free content.

If you still experience dizziness, please stop using e-cigarettes immediately; after all, health is not something to be taken lightly.

10. What nicotine concentration is best to choose?⚖️

We cannot advise you on which specific saturation level of e-liquid to choose.

Currently, most e-sports enthusiasts use 6mg, which provides sufficient throat hit and flavor.

11.What is the relationship between nicotine solution and the throat hit?🔥

The higher the nicotine content, the stronger the throat hit, and the greater the irritation.

12.Do I need to clean the e-liquid tank before changing the e-liquid?🧼

Cleaning the e-liquid tank before changing it is a good habit.

If you're not particularly meticulous, not cleaning it isn't a big problem.

Regular maintenance of your equipment is sufficient.

13.What causes a choking sensation in the throat?😖

The irritation, slight stinging, or discomfort in the throat caused by the smoke usually occurs in the first few puffs after refilling.

This is because the e-liquid on the new wick hasn't fully evaporated before filling, and you're inhaling it directly through the vent.

Before closing the reservoir, please put a small amount of e-liquid on the new wick, light it, and let it burn completely. This will prevent this from happening.

14.Is it true that the longer e-liquid is stored, the better?🕒

Absolutely not. Some e-liquids become smoother with time, but not all e-liquids do.

Some e-liquids will even lose some of their flavor if left for too long.

Any e-liquid should be used as soon as possible after opening.

E-liquids are generally pre-set before leaving the factory, so there is little need to let them sit for extended periods.

15.Does good e-liquid require a good atomizer?🔧

There's no rule that says you have to do it this way, but a good atomizer is more likely to bring out the full flavor of your e-liquid, especially premium e-liquids.

16.How do I determine the quality of e-liquid and whether it's suitable for me?🎨

Even with longtime friends, we don't readily recommend flavors.

E-liquid is a matter of personal taste; what I like, you might not.

Try different brands and flavors, and you'll gradually find one that suits you.

17.Why does the smoke taste like rust when it's inhaled?🔥⚠️

This is because the wick wasn't fully attached to the heating coil, or the e-liquid flowed onto the coil too slowly, causing the coil to evaporate the e-liquid on the surface instantly without replenishing it, resulting in a burnt, "dry-burnt" taste.

Usually, simply rearranging or adjusting the wick will restore the normal flavor.

18.Why does my tongue feel numb when I vape?👅⚡

The e-liquid wasn't completely atomized in the atomizer, and some of it ended up in my mouth, causing a tingling sensation on my tongue.

Since vape vapor is in a vapor form, some condensation in the mouth is normal, and a slight tingling sensation is not a major concern.

Try increasing the output power to ensure the e-liquid is atomized more completely.

19.Why do the same e-liquid taste different when used with the same atomizer?🔄

Even with the same settings, each adjustment to the atomizer will result in slight differences.

However, the reason for the impact on flavor is that the cotton wick is repeatedly heated, causing some of it to caramelize.

If the flavor has changed significantly with a new cotton wick, check if the e-liquid has expired or if there are suspended particles that have caused it to spoil.

20.Why do some vapes damage the atomizer chamber?🍃

Currently, only e-liquids with high VG content may damage acrylic tanks.

VG can corrode acrylic materials, so if you choose to use an acrylic tank, please pay close attention to the VG content of your e-liquid.

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