BAILEYS lovers have been warned about a simple drinking mistake that could "wreak havoc" this Christmas.
Despite the cream liqueur's immense popularity during the festive season, leftovers are often poured down the sink as it goes off once opened and will spoil after six months.
Tradesmen at MyBuilder.com explained that pouring any leftover Baileys down the sink can cause serious damage to pipes underneath.
They said: "This sort of beverage should never be disposed of in this way. Cream liqueurs have a large fat content, and as such falls into the category of FOG (Fats, Oils, and Greases).
"FOG should never go down the sink, as it sticks to pipes and can cause blockages. It’s also what’s responsible for ‘fatbergs’ in our sewers.”
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And it's not just Baileys that Brits should avoid pouring down the sink this Christmas. Trade experts also warned against disposing of leftover turkey fat in the sink.
Experts said turkey fat is also classed as FOG, which cools and can lead to blockages and fatbergs in your pipes.
They said: "Half the population admit to pouring FOG down the drain, but don’t be one of them."
The warning comes after supermarket giant Morrisons slashed the price of a 1L bottle of Baileys to £9.99 - making it the cheapest around at the moment.
How long does Baileys last for?
According to Fitbility.com, you should try and consume your Baileys before the expiration date.
However, it can last longer than its expiration date if stored properly but the quality isn't guaranteed.
You'll need to check the look, smell and taste of the product. If you observe any spoilage changes such as curdling, you'll need to bin the bottle.
The FSA also states consumers should look out for the use-by date stating: "A use-by date on food is about safety. This is the most important date to remember. Never eat food after the use-by date, even if it looks and smells okay, as it could make you very ill."