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A woman has found what she believes is the world's biggest CRISP - measuring a whopping 20cm.

Stunned Janine Ross, 38, made the bombshell discovery while sharing a packet of 69p Asda own brand onion ring snacks with her friend's daughter Izzy.

Their humble bag contained a massive sausage-shaped crisp - measuring a hefty eight inches.

The previous record for the biggest crisp in Britain was 15cm - a large Best Sweet Chili Crisps from Morrisons .

Janine says it said it was hard to get an exact reading as the long onion ring bends and twists.

(Image: SWNS)

But she says if it was straightened it would beat the previous British record - and even the world title.

There have been bigger crisps made but they were specifically produced as a record attempt - rather than occurring by accident.

Janine, from Liverpool, said: "We were at a birthday party when I found it, every was shocked and just started laughing hysterically.

"We weren't expecting one that size, we have quite a few packets a month and they are usually the regular 'o' shape - but this one was huge.

"If it was straightened out it would be about 20cm long, I took a picture of it by a tape measure and you can see it's massive."

(Image: SWNS)

Janine was sharing the packet of onion rings with her friends daughter, Izzy, who was pictured with the monster snack and looks dwarfed beside it.

Janine continued: "It looks like a production line error. It's like they all come in a tube and are cut down, but that process missed this one.

"This one must have slipped the net, it feels lucky - we might go buy a lottery ticket now.

(Image: SWNS)

"We haven't eaten it, it's our prized possession. I might give it to Izzy - if she behaves."

The 15cm crisp discovered by Daniel Heginbotham in December was a contender for the world's largest crisp title.

He had picked up a packet of The Best Sweet Chili Crisps from Morrisons and pulled the packet open, discovering the huge crisp inside.

Daniel, 44, thought it could be Britain's biggest - but now he's been thoroughly beaten by Janine's find.