Tinned tomatoes can lose their bitter, metallic taste with a simple addition: baking soda. The experts at Food Republic have shared a technique for rounding out the flavour of tinned tomatoes, and it does not involve sugar or salt.
Why Tinned Tomatoes Taste Metallic
Explaining why tomatoes can sometimes taste unpleasant, they said: "After long periods of sitting in the aluminum container, canned tomatoes can sometimes pick up a bitter, metallic taste. This often occurs because the tomatoes are canned in an acidic solution that acts as a preservative, which then reacts with the aluminum over time."
However, you can 'liven it up with minimal effort' by adding one simple ingredient - baking soda.
How to Use Baking Soda
Baking soda, a common kitchen staple, can counteract the acidity of tomatoes, raising their pH and making them taste more fresh and lively. To carry out the hack, place the contents of the tin in a saucepan and simmer over low heat until it starts to gently cook.
Then, gradually add in the baking soda. You should not need very much - around a quarter of a teaspoon should do. The experts said: "The baking soda may react with the tomatoes and produce some fizz or bubbles, but this is okay. Just be sure to keep gradually stirring and tasting as you go, until the tomatoes taste more lively and fresh."
Other Ways to Improve Flavour
Worcestershire sauce is another option for boosting depth of flavour and reducing acidity. The experts said: "The dark, tangy sauce contains glutamates, which trigger an umami flavor response and can elevate sweet and savory notes in foods like canned tomatoes. But, as with the baking soda, add a small amount at a time for best results — otherwise, you can overwhelm the flavor of the fruit."
Caramelising tinned whole tomatoes can also bring out their sweetness. Drain and reserve some of the liquid from the can, then cook the tomatoes low and slow in a saucepan to allow natural flavours to emerge. The liquid can be added back when making the sauce.
