How Do They Do It?

The programme examines the manufacturing steps involved in creating surfboards, detailing each stage of the process. It also outlines the methods used to produce millions of tonnes of butter each year, highlighting the global scale of the industry throughout the year.

The programme is a single‑episode feature that takes viewers behind the scenes of two seemingly unrelated manufacturing worlds. Classified as a factual episode, it offers a straightforward look at how everyday items are created, from the beach‑ready boards that riders depend on to the massive quantities of butter that end up on supermarket shelves. In the first part, the show follows the step‑by‑step process of making a surfboard. It starts with the selection of foam cores, moves through the shaping and sanding stages, and then shows the application of fiberglass and resin. The episode captures each stage in clear detail, giving a practical sense of the craftsmanship and machinery involved before the finished board is ready for the waves. The second segment shifts focus to the dairy industry, outlining how millions of tonnes of butter are produced each year. It walks through the collection of milk, the churning process that separates butterfat, and the subsequent moulding and packaging steps that turn raw cream into the familiar blocks of butter found in stores worldwide. By pairing these two manufacturing stories, the episode provides a concise yet informative snapshot of both the niche world of surfboard construction and the large‑scale operation behind butter production, highlighting the care and technology that go into items we often take for granted.