By Joke Kujenya
WHEN IT’S time to cook, the type of onion you choose can make or break a dish.
JKNewsMedia.com writes that sharpness, sweetness, and even appearance shift depending on the variety, so picking wisely can transform everyday cooking.
Nutritionists says that onion sharpness is linked to pyruvate content, the compound that determines how strong the bite will be.
The higher the pyruvate, the sharper the taste and the more likely it is to make your eyes water.
For white onions, they note that it usually carries more pyruvate, giving them a pronounced raw edge while red onions are milder, although variety, ripeness, and storage also affect intensity.
However, cooking changes everything.
Heat evaporates water, softens the texture, and brings out natural sweetness.
White onions turn subtly sweet and are ideal for soups, sauces, and stir-fries while red onions soften too, but their colour often fades as heat affects the pigments.
The red hue comes from anthocyanins.
In acidic conditions, they appear redder; in neutral environments, they lean violet.
Also, heating partially breaks down these pigments, which is why raw red onions look fresher and more vibrant.
JKNewsMedia.com also writes that simple rules make everyday use easier.
Red onions are best for salads and cold dishes, while white onions perform well in frying, long-cooked meals, or soups.
Then, storage matters too so you should keep onions cool, dry, and ventilated, ideally at 2–4°C with low humidity.
Also, cut onions should be sealed in the fridge to last longer and reduce odours as even small choices make a difference.
Picking the right onion can enhance taste, texture, and colour, turning a basic ingredient into a standout part of any recipe.
