The group’s flagship brand, Yorkshire Tea, is also doing well but it could face risks.

“The brand’s heavy and consistent investment in its advertising is clearly bearing fruit,” says Amy Price, a senior food and drink analyst at Mintel.

“But like its fellow black tea brands, the challenge for the future will be in engaging a younger demographic, which is less likely than average to drink black tea and more likely than average to drink green, fruit or speciality tea.”

Looking ahead, Mrs Wild says Bettys & Taylors of Harrogate will keep focusing on what it does best and only branch out if it really makes sense.

However, it has put some new, Swiss-themed items on the Bettys’ menu this year to celebrate its centenary and there will be an anniversary bash for staff.

“We’re already planning for the next 100 years,” Mrs Wild says. “Frederick will be sitting having a cigar and looking down at us quite fondly, thinking we’ve done okay.”