Experts have warned that one in ten people could find themselves in hot water this Christmas with unexpected bills if they cook their dinner wrong.

Homeowners have been given a stark warning as families and friends get together this Christmas to take care when handling their Christmas turkeys - or risk a hefty bill.

But the festive season can still be enjoyed without worry if people listen to advice from utilities supplier Southern Water.

The Argus: A cross section of a blocked pipeA cross section of a blocked pipe (Image: Southern Water)

Some 250 tonnes of turkey fat and cooking oil can find its way into Southern Water's sewage network each Christmas for every 1 million turkeys cooked.

And with over 15,600 blockages over the past five years, the company is keen to cut back on drain blockages by telling its customers not to tip fat, oil or grease down the kitchen sink.

If turkey fat is allowed to seep down plugholes it could cause a blockage which even affects neighbours, running the risk of flooding or contamination from the bacteria-harbouring grease sludge. It is even known to burst pipes.

Read more: 6 ways to save on your energy bills this Christmas

The water company has said turkey fat can be frozen in containers to make stock cubes, which can then be added to casseroles, roast potatoes and stews for an extra kick of flavour.

A spokesman said: "Don’t be the party pooper and cause a blockage that could affect your neighbours too.

"Around 66 per cent of blockages are preventable. Fat, oil and grease should never go down the drain. Instead, allow them to cool in containers and put them in the bin."