tomato paste.

Per 100g, tomato paste contains approximately 82 calories and 18.7g of carbohydrates. Because it is highly concentrated, a typical serving of one tablespoon contains only about 13 calories and 3g of carbs.

Yes, tomato paste can be used on a keto diet in moderation. While it has 18.7g of carbs per 100g, most recipes only call for small amounts (1-2 tablespoons), which adds negligible carbs to a full meal. Always check labels for added sugars.

Pure tomato paste is naturally both vegan and gluten-free, as it is made simply by reducing tomatoes. However, always check the ingredient list for flavored varieties that might include additives or thickeners.

To unlock its full potential, sauté tomato paste with oil and aromatics (like onions or garlic) for 1-2 minutes until it turns a deep brick red. This 'blooming' process caramelizes the natural sugars and removes the raw, metallic taste.

You can, but you must adjust the ratio. Use 3 tablespoons of tomato sauce for every 1 tablespoon of paste required, and reduce other liquids in the recipe to compensate for the extra moisture in the sauce.

Canned tomato paste lasts about 5 to 7 days in the refrigerator once opened. If you use tomato paste sold in a squeeze tube, it can stay fresh in the fridge for up to 45 days because it is less exposed to air.

The best method is to freeze it. Portion out tablespoon-sized dollops onto a tray, freeze until solid, and then transfer them to a freezer-safe bag; they will stay fresh for up to 6 months and can be added directly to hot pans.

Check for any visible mold on the surface or around the lid. If the paste has developed a sour, fermented smell or the color has turned from a vibrant deep red to a dark, brownish-black, it should be discarded.