The best stouts and porters you can buy in London during the Guinness shortage

'What a treat, what a delightful, wonderful, perfect treat. The Kernel is in a league of its own in terms of London beer anyway, but its London Porter is on another level. It's deeply dark, syrupy, an abyss of toasted, warming flavours that I'd happily spend the entire Christmas period falling into.' Eddy Frankel, Art Editor

'Does it taste like Guinness? No. Is it a nice drink? Yes. Dark Matter is a velveteen beverage from the Deptford pale ale specialists. Less of a 'challenge' than the fightier stouts, this is a peppy, fun drink that has more in common with low ABV craft beers than Guinness.' Joe Mackertich, Editor

'This peanut butter milk stout is similar to what you'd get if you dropped a Mr Tom bar into a pint of Guinness and fished it out a few hours later. It's as creamy as the much-missed ol' faithful, but with a nutty, teeth-tingling twang that starts off sweet, but mellows into something highly sippable.' Leonie Cooper, Food & Drink Editor

'I don't like Guinness. I don't like stout! But this, this is quaffable. It's fizzier than your normal stout. It's certainly not your typical dark beer experience.' Anonymous Reviewer

Read at Time Out London