The Dragons’ Den is back and open for business and the multi-millionaire investors who are ready to back the best ideas and inventions with their own cash are on scorching form in this first episode of the new series.

Duncan Bannatyne, Deborah Meaden, Richard Farleigh, Theo Paphitis and Peter Jones are all worth millions and they’ve all built their own business empires from scratch. But will any of tonight’s entrepreneurs persuade them to invest?

The line-up includes a beach towel with a surfboard printed on it to help learner surfers to pop (get to their feet quickly); a lemon-slicing device for pubs; Reggae Reggae jerk sauce; streetwise puppets used to provide educational resources for teenagers; the Woollie Warmer for newborn lambs; walk-in stress-relief shops; a right-hand glove to aid safe driving abroad; head hammocks for airline passengers; and a refrigerated delivery business.