Ensure that perfect pour everytime. What is a Black & Tan? The answer depends on who you ask. The all-Guinness Black & Tan is Harp’s Lager and Guinness. (Harp’s is brewed by Guinness at Dundalk). Many consider the classic Black & Tan to be Bass Pale Ale and Guinness. (To some Irish, they appreciate the fact that the Irish comes out on top!) What is a Half & Half? A half-and-half is often just another name for a Black & Tan. However, in many North American Irish pubs, the Bass/Guinness combination is called a Black & Tan, while the Harp/Guinness combination is called a Half-and-Half. How to pour a Black and Tan (or Half & Half) Hold your pint glass at an angle, and fill just over halfway with Harp on tap Slow the flow control on the Draught Guinness tap down to a trickle. Fill to the top, letting Draught Guinness hit the side of the glass or… Pour Draught Guinness over an upside-down spoon to disperse the flow. Let settle and ENJOY!