The standard size of a spirit bottle being 700ml is not a fixed rule, but rather a common convention. There isn't a singular reason why this particular size became prevalent, but there are a few factors that likely contributed to its popularity:
Global Standardization: In many countries, including the United States and many European countries, the standard bottle size for spirits is 750ml. However, the metric system is widely used in most parts of the world, including Europe, and 700ml is roughly equivalent to 23.7 fluid ounces, which is close to the 750ml size. This might have led to the adoption of the 700ml size in metric-using countries, as it's a convenient approximation.
Cost Efficiency: The size of a bottle can impact the cost of production, shipping, and packaging. A slightly smaller bottle like 700ml compared to 750ml can lead to cost savings in terms of glass usage, labeling, and transportation. These cost considerations could have influenced the choice of bottle size.
Historical Influence: Traditionally, bottles for spirits were of various sizes, and there wasn't a strict standard. Over time, certain sizes became more common due to market preferences, production capabilities, and regulations. The 700ml size might have gained popularity due to historical reasons, and once established, it continued to be used.
Consumer Perception: The 700ml bottle size can create a perception of being slightly more affordable than the standard 750ml size, which might attract budget-conscious consumers. It's a subtle marketing technique that could influence purchasing decisions.
Regulations and Customs: Different countries have regulations and taxation structures that can affect bottle sizes. Some regulations might encourage or require certain bottle sizes for taxation purposes. This could have contributed to the adoption of the 700ml size in some regions.
It's important to note that while the 700ml size is common, there is still significant variation in bottle sizes for spirits across different regions and brands. Some spirits might come in larger or smaller bottles, and the 700ml size is just one of the many options available.
