As the weather gets hotter and hotter, people like lemon more and more. The most popular one is lemonade. However, we must have many questions about lemonade. Today, we will choose ten questions to answer. Q: how thick is lemon water? A: it must be light, and the energy without sugar is low. Lemonade is very, very light and belongs to a drink with only a little lemon flavor. It is definitely not a lemon juice drink, and there is no obvious sour taste. This point must be understood, otherwise the answers to the following questions will be different. Drinking lemonade is to replenish water, not to make sweet drinks. Compared with boiled water, lemonade is fresher and better to drink because it has a little more lemon flavor. The lemon must be light in water. A piece of lemon with skin needs to be soaked in a bar of water, which can be poured into 3-4 small cups. A large lemon can soak 5-7 liters of water, enough for a person to drink for two or three days. This kind of lemon water has no strong sour taste, and can be drunk without sugar or honey. The energy content is almost negligible, and it can be considered as a zero calorie drink. Q: how do you soak lemonade? Hot or cold? A: do not peel, but it is best to remove the seeds. It is recommended to soak in hot water before drying. When soaking lemonade, the cut lemon slices must be cut together with the peel, because the peel contains higher flavonoids, and the lemon essential oil is mainly in the peel, which is the source of the faint aroma of lemonade. The slice must be thin. If it is thin, the aroma components in the lemon peel can be easily soaked out. Lemon seeds contain very bitter limonin. After the seeds are cut, the strong bitter taste will be released into the water, so it is best to remove the seeds when soaking. First soak in hot water, then cool it, and then refrigerate it to achieve the best aroma and taste. This is because hot water can better extract essence oil from lemon peel. However, the sour and bitter flavor will be slightly heavier when it is hot. After cooling, the taste will be more elegant and pleasant. Q: will hot water destroy vitamin C in lemons? Answer: the vitamin C content of lemon is lower than expected, and the vitamin C has good heat resistance under acidic conditions. In fact, lemonade is not for drinking a lot of vitamin C. The VC content of lemon is lower than many people think, only 30-50 mg / 100g, which is similar to that of ordinary green leafy vegetables. Since green leafy vegetables can be thrown into the pot for frying and boiling, why can't lemon be soaked in hot water? Chinese cabbage, cabbage, mustard, green pepper, cauliflower and other daily vegetables are the main source of vitamin C. Although heating cooking will lose vitamin C, if you eat it right away, the loss is only about half. Since the acidity of lemon is strong, and the heat resistance of VC is good under acidic conditions, it is not as easy to lose as expected. The water temperature of soaking lemon slices is higher than 60 ° C. Q: how do you store lemons that can't be used up in a day? A: the lemon can be wrapped in plastic wrap. Even if the surface becomes dry, the inside is still juicy. The storage property of lemon fruit is quite good. The problem of long-term storage of lemon is that the surface becomes dry, but it can still be used after drying, and the inside is still juicy. It is OK to put it for a month. Wrap the lemon that is not used up after slicing with fresh-keeping film and put it in the fresh-keeping box in the freezer for two or three days