The TV personality, 28, was pictured at the Mindful Drinking Bar by Harrogate Spring Water, as part of a campaign to support moderation in drinking for adults.
Toffolo joined celebrity bartender Merlin Griffiths as they debuted a new alcohol-free summer cocktail, The Royal Raspberry Spritz.
She wore a white dress with flared sleeves and embroidered with red line-drawn rose heads, complementing the outfit with a dark crimson hat.
Toffolo, who starred on reality TV show Made In Chelsea, previously told the PA news agency she had become more of a “mindful drinker” over the past three years.
“My attitude to wellbeing has changed hugely,” she said.
“I try to get balance and moderation, which is a constant battle, whether I am looking at how I eat, drink, work, or exercise.
“In my early 20s, it was so manic and I tried to work all the hours God sent, so the theme of my mid-20s has been trying to find moderation.”
Toffolo won I’m A Celebrity… Get Me Out Of Here! in 2017, following a series which saw her and Stanley Johnson, father of former prime minister Boris Johnson, strike up a close friendship.
She returned to the jungle earlier this year for the ITV all-star spin-off series, I’m A Celebrity… South Africa which saw former contestants battle it out to become the first I’m A Celebrity Legend.