The secret to a perfecting a cup of coffee could be pouring the espresso shot over a frozen ball of steel, a top barista has claimed.So-called extract chilling, which involves the coffee-maker holding a frozen piece of metal over the shot of coffee, is said to shock and cool the espresso quickly making it hit a more optimal drinking temperature immediately and protect the flavours. It was invented by three-time Australian Barista Champion Hugh Kelly at the 2021 World Barista Awards, where he explained that the extraction method helps to 'preserve the flavour compounds in the coffee and heighten sweetness' .
Load More
Load More