Larger types of potato barely grew at all over the summer, with the popular Maris Piper variety particularly badly affected.
Nick Melmoth-Coombes, the executive chef at Fish! in Borough Market, told The Telegraph: "The potatoes are coming out smaller because of the drought in July and August. We buy our potatoes off a company that just finished harvesting this week but they think it’s 15 to 20 percent down this year. The width is still there but the length isn’t what it was last year."
"I'd say the chips are around 10 percent shorter. This is because the whole potato is smaller, so there's less to cut from."