Long Bottle Necks
Adult beverages are often placed in long neck bottles. Its shape lets you hold bottles more comfortably! Not only that, it is easier to pour the drink into a glass or mug. This way, heat is also distributed better. Unfiltered beers often have a more bulbous neck, which is useful when it comes to sediments.
Can Tabs
What are the tabs on cans for anyway? Apparently, they are supposed to be used as straw holders. However, this is simply a remnant of the past now. After all, not many people use straws when drinking from a can. In fact, the mouth was even widened to ensure it is easier to do this.