Sour | The Flavor Apprentice (20/50/100ml)

Sour by The Flavor Apprentice adds a sour-candy effect to other flavours. It is a malic acid solution in propylene glycol, useful when you want to adjust tartness without choosing another fruit flavour. Treat it as a supporting recipe component rather than a complete blend.

Flavour profile

The manufacturer describes Sour as a sour note for use with other flavours. It identifies the product as malic acid at a 20% dilution in PG. That figure describes the supplied solution, not a recommended percentage to add to a drink, dessert or DIY mixture.

Recipe ideas & pairings

• Sour fruit sweets: trial a measured addition in a suitable candy recipe alongside your chosen fruit flavour.
• Berry blends: compare a small raspberry or strawberry test batch with and without Sour.
• Fruit drinks: explore a tart accent in a diluted drink recipe, adjusting sweetness separately.
• Apple-inspired recipes: test whether a small sour adjustment gives the balance you want.

Divide a base recipe into two small portions and leave one unchanged. Add a measured amount of Sour to the other, mix thoroughly and compare. This makes its effect easier to judge than changing fruit flavour, sweetener and Sour at the same time.

Using the concentrate

Dilute before use. Begin with a small measured addition to a trial recipe and assess the fully mixed result before adding more. There is no single dose that suits every application. For food and drink recipes, assess the final prepared base. This is not a validated preservation method: do not use flavour taste to establish pH, shelf life or microbiological safety.

For repeatable results, record the measured addition and final batch size. Measuring tools help you make controlled adjustments. For DIY e-liquid, check guidance appropriate to the exact product and recipe; food-use information alone does not establish suitability for inhalation.

Product details

• Manufacturer-listed ingredients: propylene glycol (PG) and malic acid.
• Water-soluble sour modifier; manufacturer describes a 20% malic acid dilution in PG.
• From The Flavor Apprentice, USA.
• Available in 20 ml, 50 ml and 100 ml.
• Rebottled from bulk by Flavour-Concentrates.eu; supplied in our bottles.

Explore The Flavor Apprentice concentrates for more recipe components.

Handling & storage

Keep tightly closed, away from heat and direct sunlight, and out of reach of children and pets. Check the label and batch documentation when allergies or dietary restrictions matter.

Frequently asked questions

Is Sour the same product as TFA Tart and Sour?
No. They are separate manufacturer products with different declarations. Use the exact ingredient your recipe specifies.

Can it replace a lemon flavour?
It can add sourness, but it does not supply a lemon aroma. Choose a lemon concentrate when the citrus flavour itself is wanted.

Should I mix a recipe at 20% Sour?
No. The stated 20% refers to the malic acid concentration of the supplied product, not a recipe dose.

Will Sour make a finished recipe safe to store?
No shelf-life or preservation claim follows from using it. Food safety and storage depend on the complete recipe and a suitable validated process.