Tesco Clubcard members can currently buy the device for £25 ... For those unfamiliar, Guinness Nitrosurge is a portable device that attaches to the opening of specially designed Guinness cans ...

While not the most substantial discount from the usual £50.50, the deal includes 10 pint cans of Guinness Nitrosurge and the Nitrosurge device – which typically retails for £30 to buy separately.

The retail giant has reduced the price of the Guinness Nitrosurge Starter Pack Device and Cans Bundle from £50.50 to £47. Whilst this may not be one of the most impressive discounts from Amazon ...