Sour Blue Razz by Frunk Bar is an intense longfill that combines tangy blue raspberry flavour with bright fruit freshness. The profile delivers a sharp sour note up front, softened by a smooth sweetness for a well-balanced finish.
The product is supplied as 20 ml flavour concentrate in a 60 ml bottle and is intended to be mixed up to 60 ml of finished e-liquid. Sour Blue Razz is ideal for vapers who enjoy bold sour flavours without harsh edges.
Note: This is a longfill and cannot be used on its own. You must add base liquid and/or nicotine shots to create a ready-to-use e-liquid.
Contents
- 1 × 20 ml flavour concentrate in a 60 ml bottle (longfill)
Features
- Flavour: Blue raspberry (sour)
- Volume: 20 ml concentrate in a 60 ml bottle
- Type: Longfill – requires base liquid and/or nicotine shots
- Mixing ratio: Adjustable (VG/PG and strength)
- Possible nicotine strength: up to approx. 13.3 mg/ml (at 60 ml final volume)
- Manufacturer: Frunk Bar
Nicotine calculation (example, 20 mg/ml shots, final volume 60 ml)
| Nicotine shot 20 mg/ml | Base liquid 0 mg/ml | Nicotine strength | Total volume |
|---|---|---|---|
| 10 ml | 30 ml | 3.3 mg/ml | 60 ml |
| 20 ml | 20 ml | 6.7 mg/ml | 60 ml |
| 30 ml | 10 ml | 10.0 mg/ml | 60 ml |
| 40 ml | 0 ml | 13.3 mg/ml | 60 ml |
FAQ
How sour is Sour Blue Razz?
It has a clear tangy edge that is balanced by smooth fruit sweetness.
Is the flavour more candy-like or fruity?
The profile leans fruity blue raspberry with a candy-style sour twist.
What is a longfill?
A longfill is a flavour concentrate that must be mixed with base liquid and optionally nicotine shots before use.
Do I need anything besides the bottle?
Yes, you need base liquid (VG/PG) and nicotine shots if you want nicotine.
Is Sour Blue Razz suitable for all-day vaping?
Yes, the balanced sour profile makes it comfortable for extended use.
About Frunk Bar
Frunk Bar focuses on modern longfills with bold fruit and candy-style flavour profiles. The range is designed to deliver intensity with balanced performance.


