I posted this as reply to someone else but thought it might be of interest to a wider audience. There is probably enough information from the 2 sites for the more adventurous to have a go at reproducing. They also make a Lincolnshire Red but is probably just a variation on a Red Leicester.
Lincolnshire Poacher & the cheese makers description is as follows:
The cheese is made a little bit like traditional West Country Cheddar though we have several key differences in our recipe that give Lincolnshire Poacher its own unique flavour and texture. It is matured for 14-24 months and although the taste varies with the seasons it usually has a distinctive fruity, nutty taste with a clean sweet finish.
It has been described as sitting somewhere between the continental hard mountain cheeses (such as Comte) and traditional West Country Cheddar.
http://www.lincolnshirepoachercheese.com/our-cheese/cheese-making/Here's another website with transcript of an interview with the cheesemaker:
http://www.homemadecheese.org/lincolnshire-poacher-transcript.html#sthash.X5GxRRkj.dpbs
