In the episode, Kate Connor (played by Faye Brookes) managed to convince The Bistro owner Nick Tisley (Adam Rickitt) to give her a trial behind the bar.
And eager to please the boss, she got to work straight away but made a very amusing error.
Toyah Battersby (Georgia Taylor) popped in for some cheering up after a row with her secret boyfriend Peter Barlow (Chris Gascoyne) and Kate suggested sharing a bottle of white wine with her friend.
The newbie got the bottle from the fridge and placed it on the counter alongside a large glass but viewers noticed one important element was missing.
Kate was trying to impress her boss at her trial shift when she made the error
Kate pulled out an empty bottle of wine for Toyah Battersby
It appeared she didn’t notice the bottle was actually empty.
Viewers flocked to social media to point out the noticeable gaffe.
One fan said: “£10 for an Empty wine bottle ? That's expensive #coronationstreet #coronationstreet.”
“@itvcorrie doesn't look like white to me! She can't be serving empty bottles her trials not going well,” another concerned viewer wrote.
A third added: “When the new barmaid tries to impress the boss and the first drink she serves is from an empty bottle #coronationstreet #corrie.”
The empty bottle of wine
8 of the biggest Coronation Street blunders
Wed, November 30, 2016
Coronation Street errors: Eagle-eyed viewers spotted 8 baffling blunders and mistakes on the popular soap.
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Coronation Street fans were left in hysterics when Debbie Rush, who plays Anna Windass, was seen to use a pair of crutches the wrong way around
Toyah Battersby didn't seem to mind the empty bottle of wine
Meanwhile, Coronation Street is about to undergo a huge overhaul as bosses have applied for planning permission to expand their enormous Manchester set.
And fans will be anticipating the return of Rosie (Helen Flanagan) and Sophie Webster (Brooke Vincent) as they come back to the cobbles next Monday.
As soon as the sisters arrive, drama will welcome the pair after police turn up to search their house for A-class drugs.
Coronation Street continues on Friday at 7.30pm on ITV.