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How to heat steep ejuice?

2023.06.22
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E-liquid News

Steeping e-juice is a crucial process that facilitates the blending and enhancement of flavors. It involves the aging of e-liquids to attain a fuller, richer taste. The steeping process is achieved through the application of heat for a specific duration. This essay expounds on how to heat steep e-juice.

Before getting to the actual heating process, it is essential to consider a few factors that affect steeping. Firstly, the VG/PG ratio has an impact on how e-juices steep. E-liquids with a higher VG concentration require longer steeping periods compared to those with a higher PG ratio. Higher VG e-liquids require more heat to break down their molecular composition and facilitate the homogenous blending of flavors.

Secondly, the nicotine strength of the e-juice also matters. E-liquids with higher nicotine concentrations require minimal heat exposure to steep effectively. However, avoid excessive heat exposure when steeping high nicotine e-juices as this could degrade the nicotine, impacting its flavor and potency.

Lastly, the ingredients in the e-juice affect the steeping process. Some flavorings take longer to steep compared to others. For instance, custard, cream, and bakery flavors require more steeping since they are complex and need time to mix.


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Heating Methods – How to heat steep e-juice

1. Hot water bath method

One of the most straightforward ways to heat steep e-juice is through the hot water bath method. This involves submerging the bottle of e-juice in hot water for some time. Here are the steps to follow:

Step 1: Choose your container

Choose a container that is large enough for all your e-juice bottles and deep enough to submerge them in water.

Step 2: Heat the water

Fill your container with hot water and heat it on a stove or microwave. The water should be warm but not boiling.

Step 3: Submerge e-juice bottles

Once the water is warm, turn off the heat source and submerge the e-juice bottles in the container. The bottles' caps should be removed to prevent pressure buildup.

Step 4: Steeping time

Allow the bottles to sit in the warm water for 15-20 minutes. Afterward, remove the bottles and recap them tightly.

Note: It is essential to ensure that the water does not exceed 60 degrees Celsius to avoid degrading the e-juice. The hot water bath method can be used for both PG and VG- based e-liquids.

2. Ultrasonic cleaner method

Another method for heating e-juice is through an ultrasonic cleaner. Ultrasonic cleaners use sound waves to agitate the e-juice molecules, which facilitates an even blending of flavors. Here are the steps to follow when using the ultrasonic cleaner method:

Step 1: Choose an ultrasonic cleaner

Purchase an ultrasonic cleaner that is big enough to accommodate your e-juice bottles.

Step 2: Fill the cleaner

Fill the ultrasonic cleaner with warm water until half full.

Step 3: Submerge e-juice bottles

Submerge the e-juice bottles in the water, ensuring that they do not touch the bottom of the cleaner.

Step 4: Turn on the ultrasonic cleaner

Turn on the ultrasonic cleaner and allow the bottles to sit in the water for 15-20 minutes.

Step 5: Steeping time

After the 15-20 minutes, turn off the ultrasonic cleaner and remove the e-juice bottles. Recap the e-juice bottles tightly.

Note: Ensure that the ultrasonic cleaner is not too hot as it could affect the e-juice quality. This method is suitable for VG-heavy e-liquids and those with higher nicotine concentrations.

3. Crockpot method

The crockpot method is another technique used to heat steep e-juice. This method involves using a crockpot to heat the e-juice bottles. Here are the steps to follow:

Step 1: Choose your crockpot

Choose a crockpot that is big enough to hold your e-juice bottles.

Step 2: Fill the crockpot with warm water

Fill the crockpot with warm water until it is about half full.

Step 3: Submerge e-juice bottles

Submerge the e-juice bottles in the warm water, ensuring they do not touch the bottom of the crockpot.

Step 4: Heat the crockpot

Heat the crockpot on low heat for 2-3 hours.

Step 5: Steeping time

After 2-3 hours, turn off the crockpot and remove the e-juice bottles. Recap the e-juice bottles tightly.

Note: Ensure that the e-juice bottles do not get too hot as this could cause the e-liquid to degrade. This method is ideal for VG-heavy e-liquids and those with higher nicotine concentrations.


Heating is a crucial aspect of steeping e-juice. The warm temperatures break down the molecular composition of the e-liquid, resulting in a better flavor blend. These methods discussed above are some of the most effective ways for heating e-juice. When using any of the above methods, be sure to observe the necessary precautions to avoid affecting the e-juice quality. Always heat your e-juice to the required temperatures and observe the steeping times for optimal flavor blending.


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