Her Majesty was accompanied by the Duke of Cambridge as they arrived at AG Barr’s factory, where the iconic Scottish Irn-Bru drink is manufactured.
The royal sported a powder blue coat for the occasion, along with a matching blue hat that featured stunning blue and white flowers.
The 95-year-old added her Pearl Trefoil Brooch to the coat and finished off the outfit with a pair of white gloves, her favourite three-strand pearl necklace and matching pearl earrings.
She is staying at her official residence, the Palace of Holyroodhouse in Edinburgh during Royal Week, also known as Holyrood Week.
In Edinburgh, Glasgow and Stirling, Her Majesty will visit businesses, charities and cultural institutions that highlight the pioneering work taking place to further community engagement, education, technology, and efforts to combat climate change.
The Queen will be joined by Prince William, known as the Earl of Strathearn in Scotland, for the first day of her visit on 28 June, and by Princess Anne for outings on Wednesday 30 June and Thursday 1 July.
Her Majesty has been wearing lots of bold colours lately, and delighted fans as she made an appearance during the final day of Royal Ascot.
She accessorised the ensemble with her Palm Leaf brooch which is from her late mother’s collection.