Launching in April 2026, the new identity is focused on championing and celebrating the brand’s Cornish provenance, whilst continuing to position the company as a leader in the premium dairy sector.
Today, Ehrmann Cornish Dairy has announced that they will rebrand Trewithen Dairy to become Cornish Dairy Co. from April 2026, with the updated branding set to roll out across grocery channels as part of a strategy to drive brand recognition, shelf standout and continued national growth.
The exciting new chapter is designed to support long-term growth while celebrating the brand’s Cornish provenance, heritage, and commitment to quality. The rebrand will further establish the company as a leader in the premium dairy sector while showcasing its ties to the rich history of Cornish farming.
Following a visual rebrand in 2024 and an acquisition by Ehrmann (now Ehrmann Cornish Dairy), Trewithen Dairy has strongly established itself as a household name and leader in the dairy sector with sales increasing by 11% in 2025 and retail volume growing substantially. Now, a shift to Cornish Dairy Co. allows the brand to put that front and centre in a way that’s clearer, bolder, and more meaningful for today’s shopper across the UK. Ahead of this rebrand, Cornish Dairy Co. has already established a strong indication of success with over 60% of consumers choosing new branding over Trewithen Dairy in prior testing.
Importantly, long standing partnerships with local Cornish farmers will continue and the same quality consumers and retailers have come to love and know Trewithen Dairy for will remain.
On the decision to rebrand, Emma Lawes, Head of Marketing at Cornish Dairy Co., says: “This rebrand is about celebrating who we truly are. We have always been proudly Cornish, and Cornish Dairy Co. allows us to put that front and centre in a way that is clearer, bolder, and more meaningful for today’s shopper. We remain dedicated to delivering the high-quality dairy products our customers have come to love but to also connecting shoppers with our Cornish heritage and proud dairy farmers. We’re looking ahead to an exciting future that will see Cornish Dairy Co. become a staple in households, coffee shops, and restaurants alike.”
Cornish Dairy Co. packaging, marketing, and communications will begin from April 2026, with products beginning to appear on shelves nationwide from 22nd April 2026. The Cornish Dairy Co. packaging will roll out across the full product range throughout April and May 2026, supported by launch activity across marketing and social channels designed to build awareness of the new branding.
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