RY4 Double | The Flavor Apprentice (20/50/100/250/500ml)

RY4 Double by The Flavor Apprentice combines a tobacco-style blend with caramel tones. It offers a starting point for custom RY4 recipes, whether you keep the blend simple or explore vanilla, cream and nut accents.

Flavour profile

The manufacturer describes a tobacco blend with caramel tones. Some customers perceive a very slight fruity note, while others do not; it should not be treated as a guaranteed prominent fruit flavour. The name “Double” does not establish a dosing rule or mean you should automatically halve a recipe’s flavour amount.

Recipe ideas & pairings

• Simple RY4 blends: assess the concentrate in a suitable diluted recipe base before adding accents.
• Vanilla combinations: trial a measured vanilla addition alongside the caramel and tobacco direction.
• Nut accents: explore a separate nut flavour in a small custom blend.
• Cream pairings: test a cream accent while keeping the RY4 identity clear.

Keep a sample of the diluted RY4 Double alone when testing additions. Comparing it with each variation helps you judge whether an accent improves the blend or hides its caramel and tobacco character.

Using the concentrate

Dilute this concentrated, water-soluble flavouring into a suitable recipe. Choose the amount for your recipe and intended application, with product-specific suitability guidance.

Make a small test batch, measure each addition and mix thoroughly before assessing the result. Record the amount and final batch size so you can reproduce your recipe. Measuring tools help keep small adjustments consistent. For DIY e-liquid, follow a recipe and product-specific suitability guidance; food-use guidance does not establish suitability for inhalation.

Product details

• Manufacturer-listed ingredients: artificial flavourings, propylene glycol and water.
• Water-soluble concentrated flavouring.
• Made by The Flavor Apprentice in the USA.
• Available in 20 ml, 50 ml, 100 ml, 250 ml and 500 ml.
• Rebottled from bulk by Flavour-Concentrates.eu; supplied in our bottles rather than original manufacturer packaging.

Explore more The Flavor Apprentice concentrates for your recipes.

Handling & storage

Dilute before use. Keep the bottle tightly closed in a cool, dry place away from direct sunlight, children and pets. Check the label and batch documentation when dietary restrictions or allergies matter.

Frequently asked questions

What is the main flavour direction?
The manufacturer describes a tobacco blend with caramel tones.

Does it have a fruity note?
The manufacturer says some customers detect a very slight fruity note, while others do not.

Does Double mean half the usual dose?
No automatic dose conversion follows from the name. Choose the dilution for your recipe and assess a small measured test batch.

Which sizes can I choose?
20 ml, 50 ml, 100 ml, 250 ml and 500 ml, rebottled from bulk into our own bottles.