Cascade Ice Sparkling Water Organic Grapefruit

How exactly does one get an essence of something, specifically fruit in this situation? The way I see it either it's with magic, or a lot of beakers and Bunsen burners are involved. I'm not sure which route Cascade Ice chose to go, but the results are right her in this bottle. This is nothing but water, carbonation, and organic essences from fruit oils and extracts. It doesn't taste like an entire grapefruit was scaled down to fit in this bottle, but the flavor of it is there lightly. The majority of the flavor in this bottle is just bubbly water and there is a hint of grapefruit flavor. I personally like more flavor in my drinks, but as I get older I see the appeal of lighter drinks more and more. Guys, I think I'm finally growing up.