Custard Monster Blueberry Review: Tart Blueberry on a Cream Base

You will get on with it if you like the idea of a dessert but find most custards too heavy to live with. The tart edge does the work that cooling does in an iced fruit, resetting the palate without adding menthol. It is the best all-day candidate in the range.

Skip it if you want a rich dessert. This is the least indulgent of the seven, and if you came looking for something that tastes like pudding, Banana or Butterscotch are the bottles to look at.

One thing worth knowing: Blueberry tolerates a little more power than the plainer custards, because the fruit survives heat better than the cream does. If you normally find custards too soft at your usual wattage, this is the one to try before turning anything down.

Juicy, slightly tart blueberry with velvety custard. The tartness is the point. Blueberry has enough acidity to cut through a cream base, and that acidity is what stops the bottle turning into undifferentiated sweetness by the third tank. The custard is smooth rather than eggy and carries the fruit without burying it. The exhale is rounder and heavier than a straight fruit e-liquid, but noticeably lighter than Butterscotch or Banana. Of the seven, this is the one that behaves most like a fruit bottle while still reading as a dessert.

Retailer copy consistently calls this the tart one, and pairs it with Blackberry as the two single berry options. Velvety is the word that recurs for the base.

We have not tasted this bottle, so treat the description above as a reading of the maker’s own wording rather than our tasting notes.

The 100mL freebase bottle is mixed at 75VG/25PG. That ratio favors vapor production and a softer throat hit, which suits sub-ohm tanks, box mods and coils rated under 1.0 ohm. The thicker mix wicks slowly, so give a fresh coil a minute to saturate before the first pull.

The 30mL salt nicotine bottle is mixed at 50VG/50PG. The balanced ratio is thinner, so it feeds small pod coils without starving them, and the extra PG carries the custard base more directly than a high-VG mix does.

The more vapor your device makes per puff, the lower the strength you want. If you are between two strengths, go down rather than up: a strength that is slightly too low is a minor annoyance, and one that is too high will put you off the bottle entirely.

If you are moving away from cigarettes and unsure where to start, the vape quiz covers strength and device together in about a minute.

Match the format to the hardware. This is the single most common mistake made with a 100mL bottle.

For the 30mL salt version at 50VG/50PG, use a mouth-to-lung pod with a coil around 1.0 to 1.2 ohm. The 50/50 mix wicks fast enough for small coils and the tighter draw concentrates the custard. The Black Note Pod System is our own refillable and is built around 50/50 liquids. The Uwell Caliburn G3 Pro adds adjustable airflow, which is the main lever on how sweet this reads, and the Vaporesso XROS 6 Mini is the steadier choice for all-day carry.

For the 100mL freebase version at 75VG/25PG, go sub-ohm. A restricted direct-lung coil around 0.6 ohm is the sweet spot for a custard, giving you vapor without cooking the cream. The Vaporesso Luxe XR Max 2 handles 75VG without a full tank setup, and the Geekvape Aegis Solo 3 is the one to pick if flavor matters more to you than pocket size.

This one has the widest usable window in the range. The blueberry stays legible a few watts past the point where a plain vanilla would flatten, which is why it suits a sub-ohm setup better than most custards. Still climb gradually, and back off when the cream disappears behind the fruit rather than the other way around.

Close the airflow down further than you would for a fruit bottle: a tighter draw concentrates the cream, while wide-open airflow spreads it thin and the custard starts reading as generic sweetness.

Prime a new coil properly by wetting the exposed cotton, filling, then leaving it five to ten minutes before the first pull. At 75VG the liquid moves slowly, and not waiting is the most common way to ruin a coil on day one.

Sweetened custards are the most demanding e-liquid category on coils. Sweeteners caramelize on hot wire and a cream base leaves residue of its own, so both mechanisms work against you at once. Blueberry sits at the lighter end for a custard, though it is still a sweetened dessert and heavier on coils than any fruit bottle. Coils darkening within a few days of regular use is this category behaving normally rather than a fault with the liquid or the hardware. This is a general statement about dessert e-liquid; we have not tested coil life on this bottle.

Three things genuinely help: run at the lower end of your coil’s range, avoid chain pulls that let the wick run dry, and rinse a pod between refills when switching flavors. Mesh coils outlast round wire here because the heat spreads across a wider surface.

If coil cost is the thing that bothers you, that is a real argument for an unsweetened blend rather than something to work around. Black Note Special Blend and Special Blend 3.0 are naturally extracted tobacco e-liquids made without added sweeteners.

The closest comparison is not inside this range at all. Jam Monster Blueberry uses the same berry over buttered toast instead of custard. The jam version is sweeter and bready; this one is tarter and creamier. If you have tried the Jam Monster and found it too sweet, this is the same fruit with the sugar pulled back. Within the range, Blackberry is darker and rounder, Strawberry lighter, and Mixed Berry combines all three ideas if you cannot choose.

Custard Monster Blackberry is the darker and softer sibling, worth having alongside this if you like the berry and custard idea but want variation.

Jam Monster Blueberry is the same fruit on toast rather than custard, which is a genuinely different bottle despite the shared berry.

Custard Monster Blueberry is the most liveable bottle in the range. The tart edge keeps it from wearing out, and it takes power better than the plainer custards do.

Both formats sit on the same page, so you can pick the bottle that matches your device rather than buying twice. Shop Custard Monster Blueberry at Black Note.

WARNING: This product contains nicotine. Nicotine is an addictive chemical.

This is an editorial product review for adults 21 and older. It is based on the maker’s stated flavor description and on Black Note’s live product record, checked on September 25, 2026. Nobody at Black Note has vaped this bottle, so it carries no tasting notes, no score and no performance claims. Where a judgment is ours rather than the maker’s, the text says so.

Written by Jon Rankin. Custard Monster Blueberry is made by Monster Vape Labs and is carried by Black Note; it is not a Black Note product and does not share the naturally extracted tobacco process used in the Black Note range. This review makes no health, safety or risk comparison of any kind, in any direction.