‘My customers like zero waste’: the blacksmith recycling canisters into cult kitchen knives

Tim Westley takes up chef friend's challenge to transform laughing gas litter

The little steel bulbs that litter parks, roadsides and city centres - the discarded canisters from Britain's second favourite drug, laughing gas - cause misery to many communities. But now one blacksmith has found an innovative use for them: turning them into handmade kitchen knives.

The prevalence of the canisters has prompted some councils to impose local bans, while the home secretary is keen to outlaw them nationally. But Tim Westley's handmade kitchen knives are gaining a cult following among environmentally conscious foodies after being endorsed by chefs committed to low waste.