"No preservatives" is clearly written on the ... bought fresh pasta with the tomato and burrata filling, contain sodium bicarbonate (baking soda), an ingredient used for pH control.

Baking soda, also known as sodium bicarbonate or bicarbonate of soda, is a popular baking ingredient. It gives foods like bread, cakes, muffins, and cookies a light, fluffy texture. That’s ...

Preservatives and other extra ingredients ... Ascorbic and citric acid and sodium bicarbonate are probably the most common, and they can prevent bacterial growth by increasing acidity.