The content of vitamins in fruit drinks made from fresh and frozen berries is much higher than in fruit drinks made from jam. But whether fruit juice from jam is healthier than juice from a tetrapak is a moot point.
The main component of the jam is vegetable fiber. The benefits of jam are determined by its chemical composition - that is, it is important from which berries it is cooked.
Nowadays, many people prefer to freeze fruits and berries. An alternative to jam is berries grated with sugar. It is believed that this is more useful. In addition, there are many simple ways to preserve berries and fruits that preserve vitamins as much as possible. One of the surest ways to cook vitamin jam is not to overcook the berries. It is enough to boil thick sugar syrup, and boil fresh berries in it for 2 minutes.
It is known that blueberry jam is good for eyesight, raspberry jam helps with colds, currant jam - increases immunity, strawberry jam - rehabilitates a child's body after an illness. But, again, all this is appropriate if all the vitamins and nutrients are preserved in the jam.
There is only one harm from jam - its excessive use, leading to excess weight and frequent visits to the dentist, since the main component of jam is sugar. To prevent this harm is quite simple - to observe the measure of its use, exactly as to increase the benefits - to observe the technology of making healthy jam.
Accordingly, fruit drink from homemade, properly prepared jam is a storehouse of vitamins and microelements.
How packaged juice is made
When “natural juice” is written on the packaging, it means that this product consists of 10% concentrated juice + 90% purified water. There are no more additives here - this is on condition that the manufacturer is "honest on hand."
If “nectar” is written on the tetrapak, it means that the product consists of 5% concentrated juice + sugar + water.
If we talk about juice drinks, then they contain up to 5% juice, and the rest is flavors, dyes and other "chemicals". The good news is that the manufacturer of such a “juice” cannot now write “juice” on the tetrapak, but only “nectar” or “drink”. Direct-squeezed or reconstituted juices are labeled “Recommended for baby food” and are sugar-free.
Surely, having tasted freshly squeezed juice, a person asks the question: why is the juice from a juicer absolutely not similar in taste or structure to the juice from a tetrapak? Because packaged juice is obtained not by direct extraction, but by boiling and simultaneously sterilizing it.
Of course, looking for vitamins in packaged juice is quite optimistic. Because "live" vitamins are simply unable to survive after the processing that juice is subjected to for long-term storage. Therefore, in most cases, fruit juice from a tetrapak is like soda - tasty, but useless.