Inside the Dispergo Flavour Lab: How We Build Fruza from the Ground Up
Inside the Dispergo
flavour lab:
building Fruza
Every Fruza bottle starts as a concept plus goes through seven stages before it lands on a Dispergo shelf. Ingredient sourcing, formulation iterations, tasting panels, stability tests, MHRA notification, production plus quality check. Here is how we actually build Fruza.
Every Fruza flavour goes through 7 stages across 6-9 months before it reaches Dispergo shelves. Concept research, ingredient sourcing, formulation iterations, internal tasting panels, stability plus laboratory testing, MHRA notification plus UK bottling. Everything happens in the UK. Nothing is white-labelled. Every recipe passes our internal quality gates before launching. The result is a deliberately small 9-flavour curated range rather than the 50+ flavour catalogues some competitors carry.
Three numbers
define our process
Development time, testing iterations plus ingredient sourcing. Three numbers that show why Fruza takes longer than white-label alternatives.
Production stages
From concept to bottle. Each stage has formal sign-off criteria before a flavour moves forward to the next.
Time to shelf
Including the mandatory 6-month MHRA notification wait. No shortcuts. No launching before compliance clears.
Recipe iterations
Average flavour iterations per new Fruza release. Each iteration tasted, scored plus refined before the next.
Most vape brands outsource everything. Dispergo owns the full Fruza supply chain from ingredient to bottle. That changes what you taste.
The UK vape market is dominated by white-label operations. A brand picks a flavour concept, passes a brief to a third-party contract manufacturer plus receives bottles a few weeks later with their branding on the front. The actual formulation, testing plus quality control happens behind a curtain. This approach is fast plus cheap but it means the brand has limited visibility into what is actually in each bottle.
Dispergo took a different path with Fruza. We built the full production process in-house plus source every ingredient ourselves. Our chemists develop each recipe from scratch. Our tasting panel scores every iteration. Our MHRA notification paperwork gets filed directly by our compliance team. Nothing about Fruza gets outsourced. When you open a 10ml bottle you are tasting work done by people whose day job is specifically making Fruza.
This approach is slower. A new Fruza flavour takes 6-9 months from concept to launch. Most of that time is spent iterating the recipe plus waiting out the mandatory MHRA notification window. A white-label flavour can reach market in 2-3 months because most of those controls happen at the contract manufacturer rather than in your own team. We accept the slower pace because the quality control is tighter plus the end product is more consistent.
Why the range stays small
Fruza holds at 9 core flavours while competitors run 50+ options. The reason is simple. Every flavour we launch goes through the same 7-stage process plus has to score above internal quality thresholds during the tasting panel stage. Most candidate flavours fail this screen. We would rather launch 9 great flavours than 50 mediocre ones.
The curation approach has a side effect: stock consistency. When a flavour is in the core range it stays there. No sudden discontinuations because sales dipped. No rotating seasonal specials that vanish after three months. You pick a Fruza favourite today plus can still buy it 2 years from now. The trade-off is less variety in any given month. We think the trade-off is worth it.
- In-house formulation. Every recipe developed by our own chemists not a contract manufacturer.
- Own tasting panel. Internal scoring plus iteration on every candidate flavour.
- Direct MHRA filing. Our compliance team handles notification paperwork.
- Curated over broad. 9 core flavours rather than 50+ options.
From concept
to Dispergo shelf
The full journey every Fruza flavour takes before it launches. Seven formal stages with sign-off gates between each one.
Seven stages, six to nine months, zero shortcuts
Each stage has formal sign-off criteria. A flavour cannot progress to the next stage until the current stage is complete plus approved. If a stage fails the flavour either iterates or gets dropped entirely.
Flavour concept research
We start by identifying a gap in the current range. Customer feedback, sales data plus competitor analysis point to flavour profiles UK vapers want but cannot currently buy from Fruza. A brief is written covering target profile, ingredient parameters plus launch window.
Ingredient sourcing
Our chemists shortlist food-grade flavour concentrates from approved UK plus EU suppliers. Every supplier must provide full traceability, Certificates of Analysis plus MHRA-compliant ingredient documentation. We reject any ingredient flagged in MHRA restriction lists.
Recipe formulation
Our lab runs 15+ recipe iterations adjusting ratios of concentrates, cooling agents plus nicotine salt. Each iteration is bottled in small batches plus tasted through our panel. Iterations continue until the recipe scores above our internal quality threshold on all four dimensions.
Internal tasting panels
The Dispergo team taste-tests the candidate across multiple device types: OXVA Xlim, Uwell Caliburn, Vaporesso Xros plus a reference pod kit. Scoring covers balance, sweetness, throat hit plus finish. Scores are aggregated plus the recipe is refined further if any dimension underscores.
Stability & laboratory testing
Samples sit in controlled temperature chambers for 4-6 weeks to verify no flavour drift, chemical separation or bottle-liquid interaction. An independent UK laboratory tests nicotine content accuracy, heavy metals, impurities plus MHRA-restricted substance compliance.
MHRA notification
We file the full notification dossier with the MHRA including ingredient list, toxicological assessment, emissions test results plus product specifications. UK law requires a minimum 6-month waiting period after notification before any nicotine-containing product can be sold.
UK bottling plus QA
Once MHRA clears the flavour, UK bottling begins. Every batch gets batch-level QA covering nicotine strength, fill volume, seal integrity plus label compliance. Finished stock ships to Dispergo warehouses ready for sale. The flavour goes live on the Fruza landing page.
Measured activity
behind every Fruza bottle
Mandatory minimum notification period before any new nicotine product can be sold in the UK.
Average number of iterations per flavour before the formulation passes our internal quality threshold.
Different pod kits used in our tasting panel to verify the recipe works across common UK hardware.
Zero diacetyl, acetyl propionyl, acetoin or any other MHRA-flagged restricted ingredients in any Fruza bottle.
Six quality pledges
we maintain on Fruza
Six commitments that define how we build Fruza. Each one is verifiable through MHRA documentation, lab certificates or supplier paperwork.
UK manufactured
Every Fruza bottle is formulated, tested plus bottled in the UK. No offshore production. Full supply chain traceability from ingredient to bottle.
MHRA notified
Every flavour holds a valid GBID notification number. All ingredients, emissions plus toxicological data submitted to UK regulators before launch.
No restricted substances
Zero diacetyl, acetyl propionyl, acetoin plus all other MHRA-flagged ingredients. Every batch lab-verified before release for sale.
Full stability testing
Every formulation spends 4-6 weeks in controlled temperature chambers before launch. Ensures no flavour drift or chemical separation during shelf life.
Ingredient traceability
Every flavour concentrate, VG, PG plus nicotine batch traced back to UK or EU suppliers with full Certificate of Analysis documentation on file.
Internal tasting panels
Every recipe tasted plus scored by the Dispergo team across 4 different pod kits. Panels verify the flavour works across common UK hardware setups.
Try the full
Fruza range
Every Fruza flavour went through the 7-stage process you have just read. The 9 flavours that made it through are stocked at Dispergo in all three strengths. Multi-buy pricing applies automatically.
Browse the full Fruza collection at Dispergo to see every flavour that made it through the 7-stage process. Each product page lists the MHRA GBID number, VG ratio plus strength options so you can verify the compliance status of every bottle.
For more context on the Fruza brand including flavour picks, strength selection plus the mission statement, head to our complete Fruza consumer guide hub where every practical question has its own article.
Back to the Fruza Consumer Guide hub
This article is one chapter in our complete Fruza knowledge base. Head back for the full index covering flavours, strength selection, device pairing plus brand comparisons.
More on the
Fruza brand
For the Fruza mission statement plus what drives our approach, see the Fruza mission: cleaner taste, better consistency, stronger reliability. For the brand comparison with Bar Juice 5000 based on real customer feedback, Fruza vs Bar Juice: real customer feedback covers the head-to-head. Plus for the full flavour catalogue produced by our lab, a full guide to Fruza nic salt flavours and how to pick the right one has the shelf overview.