why do they wear the same clothes on bake off

The contestants on "The Great British Bake Off" wear the same clothes across the multiple filming days of each episode primarily for continuity purposes. Since the show is filmed over a period of days, often with challenges and interviews shot on different days, wearing the same outfit allows the editors to splice footage seamlessly without noticeable changes in appearance. This continuity helps maintain the illusion that the entire episode happens in one continuous timeline. The contestants usually wear their own clothes but must follow some guidelines such as no visible logos or offensive items, and they are encouraged to wear colorful clothes. Despite the baking being messy and physically demanding, requiring clothes to be washed and ironed overnight, they have to stick to the same outfit. Some even resort to hand-washing their clothes in hotel sinks to have them ready for the next day. The aprons are the only garments that get changed between days to avoid looking stained, but otherwise, the contestants must wear the same tops. This has been described as a "horrendous" and "stinky" experience by former contestants, as baking in the hot tent for long hours leaves clothes sweaty and dirty. Some contestants buy duplicate clothing items to manage this, but many do not. This approach is a production necessity to keep the episode visually consistent and enable flexible use of footage from different filming days during editing.