The Adjust MySour 40K is a high-quality disposable vape with four sourness levels and five bold flavors. It features a triple mesh coil, an 850mAh battery, and a 20mL e-liquid capacity with 5% nicotine.
The MySour 40K is Adjust’s latest flavor-adjustable disposable, offering four sourness levels. It shares the same design and specs as MySweet and MyCool but with a tart twist. Powered by an 850mAh USB-C rechargeable battery, it features a smart screen, triple mesh coil, bite-friendly mouthpiece, and a 20mL capacity with 5% nicotine. While I was skeptical about adjustable sourness, MyCool surprised me—so let’s see if MySour can do the same!
Specifications
- Puff count:40000
- E-liquid capacity:20 mL
- Nicotine strength:5%
- Battery capacity:850 mAh
- Charging: USB-C
- 4-level adjustable sourness
- 3-level power & airflow control
Kit contents
- 1 x Adjust MySour disposable
Size, look, and feel
The MySour 40K shares the same compact, box-mod design as the MyCool and MySweet, measuring 102mm x 27mm x 9mm. Lightweight and ergonomic, it features a bite-friendly mouthpiece and a textured grip for comfort. A smart screen displays battery, e-liquid levels, and sourness icons, though visibility can be tricky in bright light.
The side button adjusts sourness and status, but its ice cube design with a lemon icon feels like an afterthought. Otherwise, it’s responsive with a soft click.
Getting started
The MySour 40K is draw-activated for easy use. Simply turn it on using the bottom slider switch, which also toggles between three power modes, each with a unique airflow setting. Just puff when ready!
Power Level I (MTL, lowest airflow): 40k puffs
Power Level II (loose MTL, medium airflow): 30k puffs
Power Level III (looser MTL, highest airflow): 20k puffs
To adjust sourness, press the button to activate the screen, then cycle through levels. A single press also shows battery and e-liquid status. Interestingly, increasing sourness boosts vape intensity, adding another layer of customization.
How does it hit?
The MySour 40K delivers a satisfying MTL draw, with Power Level III offering a looser hit. The 5% nicotine strength isn’t ideal for restricted lung hits. Increasing sourness also boosts warmth, vapor, and flavor. However, at Power Level I with Sourness Level 1, the vapor feels weaker than expected—easily fixed by increasing sourness. While the added customization is great, it’s unclear why sourness affects power output.
Adjust MySour 40K best flavors
I love the MySour flavors! They start tart, but increasing sourness enhances the mouthfeel and makes the flavors pop. I was skeptical, but the noticeable change at each level won me over!
Sour blue razz ice
A tangy blue raspberry reminiscent of Wonka Bottlecap candies. Try it at power level III/sour level 4.
Sour pinkberry
A pink lemonade flavor with other red fruits. This and sour island are my favorites. Try it at power level III/sour level 3.
Battery life and charging
The MySour 40K runs on an 850mAh battery, lasting about a day with moderate use. Heavy use, like with Sour Pinkberry, drains it faster. Battery life varies based on power and sourness levels, averaging 2.85mL per charge with around 4.5 charge cycles per device—less than the stated 20mL but typical for disposables.
The main downside is the 100-minute recharge time. The USB-C port is at the bottom, and the screen stays lit while charging for easy status checks, so keep a backup device handy!
Pros and Cons
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CONCLUSION
The MySour 40K is another hit from Adjust, proving their flavor-adjustable disposables are top-tier. Both MyCool and MySour exceeded my expectations, making me appreciate adjustable coolness and sourness more than I expected.
The only real downside is the long 100-minute charge time. Also, I’d love more insight into how flavor adjustments boost power—it’s a cool feature, but vapers enjoy knowing the details!
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