摘要内容：在现代都市生活中，瓶装咖啡因其便利性而受到广泛欢迎。然而，超市销售的瓶装咖啡是否属于速溶咖啡这一概念引发了争议。本文将从定义、制备工艺、成分和口感等多个维度深入探讨，为消费者提供全面的了解。

一、定义之辨：速溶咖啡是一种经过精心萃取与浓缩后的咖啡粉末或颗粒，它以迅速溶解、高携带性和简易冲泡为特点。相比之下，瓶装咖啡则是直接将萃取出的咖啡液无需干燥地封存起来，以保持原汤味。

二、制备工艺之变：速溶咖啡的制造过程包括三步骤：首先是高效率的热水与研磨好的豆粒混合进行提取；然后通过高压力浓缩去除多余水分，使得可饮用的浓缩液体；最后利用冻干或喷雾干燥技术消除水份形成固态产品。

bottles of coffee, on the other hand, skip this drying process and directly fill the extracted liquid into sealed containers to prevent any contact with air, thus preserving the original flavors.

三、成分之别：两者的主要组成部分都是来自于新鲜豆子的可溶物质，如氮气（N2）、单宁酸及挥发性芳香化合物，但由于生产流程略有差异，其组成比例也有所不同。

The aroma compounds in instant coffee may be partially lost during the drying process, resulting in a less aromatic taste compared to bottled coffee. Moreover, some additives such as stabilizers and emulsifiers might be added to instant coffee for better texture and longer shelf life.

四、口感之争：Bottled coffee is known for its richer flavor profile due to retaining more volatile compounds. Instant coffee tends to have a lighter taste but can offer a sweet or creamy sensation thanks to additives.

Consumer preferences vary; those who appreciate robust flavors tend towards bottled coffee while those seeking convenience and value opt for instant varieties.

五总结后，我们可以明确地看到，在定义上超市销售的 bottle-contained-coffee 与 speed-soluble-coffee 存在差异，并且在制作方法上也存在显著区别。但同时，这两种产品都能满足人们对便捷性的需求，并且它们之间存在一定程度上的相似性，因此我们可以把 bottle-contained-coffee 视作 speed-soluble-coffee 的一个延伸形式。

Ultimately, consumers should make their choice based on personal preference and specific needs when selecting between these two options.