Flavour Concentrates

Flavour Concentrates – Mixing Ratios, Flavour Strength and DIY Precision in Ireland

Key Takeaways:

• Flavour concentrates are used in controlled percentages, not as standalone liquids.
• Typical mixing ranges fall between 5% and 15%, depending on concentrate strength.
• Over-concentration can reduce flavour clarity and increase coil residue.
• Accurate measurement is essential for repeatable DIY results.

Definition: Flavour concentrates are highly concentrated flavour compounds used in DIY vape juice preparation, diluted with base liquid to create a final e-liquid suitable for refillable vape devices.

In practical terms, flavour concentrates define the final character of a DIY liquid. However, they do not behave like finished e-liquids. Their performance depends entirely on dilution, ratio balance and compatibility with the chosen VG/PG base. For adult users in Ireland, this means that flavour accuracy is not only about taste, but also about correct formulation.

Flavour Concentration and Mixing Behaviour

Each concentrate has a different strength profile. Some are designed for lower percentages, while others require higher dosing to achieve full flavour expression. Increasing concentration does not always improve flavour — beyond a certain point, it can flatten the profile or create unwanted harshness.

Technical Specification Matrix – Concentrate Usage Guide

How Much Concentrate to Add (Practical Guide)

• 50ml base: typically 5ml – 7.5ml concentrate
• 100ml base: typically 10ml – 15ml concentrate

These values depend on concentrate strength and desired intensity. Lower percentages produce lighter flavour, while higher percentages create a stronger and denser profile. The key is consistency — once a working ratio is found, it should be repeated precisely.

Mixing Compatibility with VG/PG Ratios

Flavour concentrates are usually PG-based, which means they slightly increase the PG content of the final mix. When building a DIY liquid, this must be taken into account. For example, a 50/50 base with added concentrate may shift toward higher PG, affecting throat hit and wicking behaviour.

Example DIY Recipe (Balanced Fruit Mix)

• Strawberry concentrate – 6%
• Watermelon concentrate – 4%
• Cooling additive – 1%
• Base liquid – remaining volume

This type of mix creates a balanced fruit profile with light cooling. The total concentrate level remains within a stable range, helping maintain flavour clarity and controlled coil behaviour.

What to Avoid When Using Concentrates

• Adding too much concentrate in one mix
• Ignoring VG/PG balance after dilution
• Changing ratios without recording measurements
• Mixing incompatible flavour profiles without testing

Most DIY issues come from overcomplication or lack of consistency rather than poor ingredients.

Price & Value Context – Ireland (2026)

With the introduction of e-liquid taxation in Ireland, DIY mixing using flavour concentrates has become one of the most efficient ways to manage long-term costs. A single concentrate bottle can produce multiple finished e-liquid batches, offering significantly more control over cost per millilitre compared to ready-made liquids.

• Lower cost per finished liquid volume
• More batches from a single bottle
• Greater control over flavour strength and waste reduction
• Better long-term efficiency when recipes are standardised

Regulatory Context – Ireland

• Intended for adults aged 18+ only
• Must be used in accordance with TPD-compliant nicotine components where applicable
• Not intended for direct use without dilution
• Should be stored safely and labelled correctly after mixing

This content is informational and focuses on flavour concentrate usage, ratio control and DIY compatibility in the Irish market.

FAQ – Flavour Concentrates

Last Updated: March 2026