500ml bottles of Kronenbourg 1664 Premier Cru are £2.15 each and Buy One Get One Free at Ocado. This works out at £2.15 per litre / £1.22 per pint.
The blurb for this beer goes: Indulge in Premier Cru - carefully crafted by our master brewers at Brasseries Kronenbourg for more depth, in a generous serving so you can savour the moment longer. Brewered by Brasseries Kronenbourg F-67200 Strasbourg.
Alc 6.0% Vol.
This is much cheaper than anywhere else for this lager. For example, Tesco have it on offer at 2 for £3.00.
Ocado also have some other good deals on beers and cider. As previously posted, they have a number of beers on a 3 for 2 offer including Cobra Premium Beer working out at 12 x 330ml bottles for £7.38 = £1.86 per litre / £1.06 per pint. They also have a bundle offer of 4 x 500ml bottles of 4 different varieties of organic cider for £4.50 = £2.25 per litre / £1.28 per pint.
There is a £15 off a £60 spend voucher for Ocado posted on here, but it doesn't seem to work on every person's account.