As consumers 'cognition of coffee, coffee lovers to coffee requirements not only stay in the refreshing this just need, the pursuit of the more of boutique coffee flavor, and coffee shop function from Shared office to "day coffee night wine", and warm heart pet friendly shop, as the world's most cafe city, Shanghai is not only the number of the world, more rich and colorful model.IDrinking coffee drinks will not affect the health of adults, but special people will be more susceptible to caffeine.Considering the recommended value of caffeine safety intake proposed by the relevant organizations or institutions, the relevant data of caffeine were analyzed, and the results of this consumption survey were determined.The results showed that the recommended caffeine safety intake in healthy adults was not exceed 400 mg per day, a safe intake of 200 mg for pregnant and lactating women, and 85 mg for children aged 10-12 per day.

Brewing ratio is the ratio of coffee powder to water, usually in grams or ounces. The standard brewing ratio is 1:16.

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