London: The world’s most expensive pineapple is six inches long and was grown in Cornwall in a glasshouse heated by horse manure.
It carries an estimated price tag of 10,000 pounds, which covers labour costs, equipment – and urine-soaked hay.
"We were so excited about it; so much hard work and hard labour has gone into it. We shared it round the gardeners and it was delicious," The Independent quoted Nicola Bradley, supervisor at the productive gardens as saying.
Heated through glass light in the summer, the pit relies on 30 tonnes of decomposing hay, which is soaked in horse urine and refreshed three or four times during the winter months to help it reach the right growing temperature.
In future, farmers are hoping to spray their hay with artificial nitrogen fertilisers instead of urine.
The "hotbed" system is thought to date back to the time of Charles II but with the advent of steam boats in the mid-19th century, it fell into disuse, as importing the fruit from the Americas became more viable.