As per title, Sainsbury's are doing 12 x 330ml bottles of Hoegaarden Wheat Beer for £10. The packs of 4 bottles are £4.03 each, or 3 for £10. This works out at 83p per bottle / £2.52 per litre / £1.43 per pint.
The best current offers elsewhere are 2 x 750ml bottles for £5.00 at Asda and Tesco, which works out at £3.33 per litre / £1.89 per pint.
There are a few other beers included int he 3 for £10 offer at Sainsbury's, but none of these stand out.