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At first glance, the small notch found on the underside of some mugs looks like a manufacturing defect. But what many people mistake for a flaw is actually a clever design feature with a surprisingly practical purpose.
A Small Detail With a Useful Function
Many mugs are loaded upside down into a dishwasher to ensure that their interiors are thoroughly cleaned. During the wash cycle, however, water can collect on the base of the inverted mug. If the liquid remains trapped there, the mug may still emerge from the dishwasher wet, requiring extra drying by hand.
To solve this problem, some manufacturers add a small notch or gap along the bottom rim of the mug. The opening acts like a miniature drainage channel, allowing water to run off instead of pooling underneath. As a result, less water remains on the mug after washing, making it easier to dry and reducing the risk of water spots.
Not a Standard Feature
Despite its usefulness, the notch is not found on every mug. Whether it is included depends on the specific design, shape, and construction of the piece. Some mug bases are engineered in a way that naturally prevents water from collecting, while others rely on the additional drainage feature.
Because of these design differences, consumers may notice that some mugs have the small cutout while others do not.
Similar Notches Can Serve Other Purposes
A comparable feature can also be found on certain drinking glasses, particularly those used in restaurants, cafés, and bars. In these cases, the notch may have a completely different role.
For stackable glasses, small indentations or cutouts can help stabilize the stack and prevent the glasses from slipping when placed on top of one another. This makes storage easier and reduces the likelihood of accidents in busy hospitality environments.
A Clever Piece of Everyday Design
What appears to be a simple manufacturing imperfection is often a thoughtful design solution. On mugs, the notch helps water drain away after dishwashing, while on some glasses it can improve stacking and stability. It is a reminder that even the smallest details in everyday household items are sometimes carefully engineered to make daily life a little more convenient.
- source: vienna.at/picture:
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