Pure coffee is a way of making coffee, that is, no sugar, no milk and no partner.
Black coffee refers to a very heavy coffee base, which is made of coffee powder ground from Sumatra coffee beans.
So they are not the same concept.
Starbucks has heavily roasted Sumatra coffee beans, which can be ground into powder for free, so if you need to taste real black coffee, you can buy it, and the price is not too expensive, 100 yuan. Coffee machines are definitely available, and they are cheaper. Philips has two models: 200-300 yuan, which beginners or economic considerations can choose.
Black coffee is coffee without milk and sugar. Only in this way can we achieve the effect of losing weight. Coffee itself basically only has diuretic and fat-reducing effects, but it is not good to drink coffee for a long time to lose weight. Of course, drinking espresso (coffee without sugar and milk) can have a certain weight loss effect, but it also varies from person to person. Some people can't accept caffeine in their hearts, and their heartbeat will be accelerated, flustered and dizzy.