A single drop of a citrus or herb essential oil can add a burst of flavour to a dish in seconds. But before reaching for the bottle, there's one thing every home cook needs to understand: not every essential oil is intended to be eaten.
The Golden Rule: Check the Label First
Only oils specifically labelled and intended for internal or dietary use should ever be added to food or drink. Not all essential oils on the market — including some sold as "pure" or "therapeutic grade" — are formulated or approved for consumption. Before using any oil in cooking: read the label carefully, follow the manufacturer's guidance exactly, and if in doubt, don't use it in food — use it aromatically instead. Keep oils out of reach of children, and never assume an oil is food-safe just because it smells familiar. Always check the individual product description on our site before adding an oil to a recipe.
Which Oils Are Commonly Used as Flavourings?
Citrus oils (pressed from the peel): Lemon, Lime, Wild Orange, Grapefruit. Herb and spice oils (distilled from the plant): Basil, Oregano, Rosemary, Peppermint, Black Pepper.
Potency: A Little Goes a Very Long Way
Essential oils are highly concentrated — a single drop can carry the flavour intensity of a much larger quantity of fresh herb or peel. Always start with a single drop, taste, and add more only if needed. Use a cocktail stick to add a partial drop for delicate dishes. Stir thoroughly, since oils don't dissolve in water and can pool. Add citrus and herb oils toward the end of cooking, off direct heat where possible.
Three Simple Recipe Ideas
Citrus Vinaigrette — whisk 4 tbsp olive oil, 1 tbsp white wine vinegar, 1 tsp Dijon mustard, salt and pepper, and a single drop of food-safe Lemon or Wild Orange oil.
Peppermint Hot Chocolate — dip a cocktail stick into food-safe Peppermint oil and stir through a mug of hot chocolate, tasting as you go.
Herb Oil Marinade — combine 3 tbsp olive oil, 1 tbsp balsamic vinegar, a crushed garlic clove, and a single drop each of food-safe Rosemary and Oregano oil for a 30-minute marinade.
Final Thoughts
Cooking with essential oils is a fun, low-effort way to add flavour — as long as you use products intended for dietary use and follow label guidance every time.