Nitrite is due to the consumption of nitrate or nitrite content of high cured meat products, pickles and spoiled vegetables can be converted into nitrite.

Salted vegetables and kimchi can also produce nitrite, but the peak of production in the pickled seventh day, if consumed half a month later, the nitrite will be greatly reduced.

Vegetables in the production of nitrite, raw materials are vegetables in the nitrate, the transformation conditions are mainly bacterial growth

Vegetables in the nitrate into nitrite. This conversion process can be realized by the original reductase enzyme in the vegetables, but in the process of the vegetables are heated and cooked, these enzymes lose their activity, and this pathway is also cut off. The other way is through bacterial action. Originally, when vegetables are cooked, the bacteria in them are almost killed. However, during the eating process, some bacteria from the chopsticks may enter the leftovers, and during the preservation process, some airborne bacteria may also enter. Cooked vegetables are better suited to bacterial growth, and under the right conditions they can grow in abundance, and nitrates can be converted to nitrites during the growth process.

The overnight meal is not said to be overnight, the scientific time is (1 to 10 hours) after ten hours this time is called overnight

Your applesauce will suffer from bacterial attack after a long time and spoiled

It is recommended to put it in the refrigerator, but the shelf life of the refrigerator should not be more than three months

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It is a good thing that I have a lot of time and I'm not sure if I'm going to be able to do this.