Edit: thank you so much for all the answers!:) I think my question wasn’t too clear. Sorry about that. I do understand that there is sugar naturally in our food. I am just wondering how it is measured when nothing is added. E.g my oat milk says 5g of sugar per 100ml. But since no sugar is added, how could 5g per 100ml be determined? How do they know?
In: Chemistry
Both oat and milk contains a lot of sugar on its own. So there is no need to add any. You can measure the amount of sugar and also its type by chemically separating the sugar from the rest of the food and then measure it out. There are also various ways of measuring it in less accurate but faster ways for use to check the assembly line. It is important to check this because oat contains a lot of fiber and starch which under certain conditions, such as when boiled or crushed, may break down into different forms of sugar. If these processes are not done correctly you get different types of sugars and different amounts which does affect the taste, texture and the dietary values.
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