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Oatfield is an Irish confectionery brand originating in Letterkenny, County Donegal, and known for traditional boiled sweets, toffees, mints, chocolate products and assortment boxes.

Last updated August 24, 2026

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Overview

Oatfield is an Irish confectionery brand whose roots are in a family wholesale and retail business on Letterkenny's Port Road in County Donegal. The McKinney family began producing sweets behind the shop on 15 August 1927, initially using an open coke fire in a shed. The enterprise first operated under the name Mayfield Confectionery, but changed its name after discovering that the Mayfield name was already used by another company in Manchester. The replacement name, Oatfield, was taken from the local name of the land on which the factory was built. The business expanded from small-scale production into factory manufacturing during the early 1930s. The factory site was purchased in November 1929 and construction began after the first sod was cut in February 1930. Six people were employed during this early phase. Production was initially measured at roughly three tons of confectionery per week. Over the following decades, Oatfield developed into one of Ireland's best-known confectionery manufacturers and was described as the country's oldest confectionery manufacturer. Its manufacturing model relied heavily on Irish agricultural inputs in later years, including Irish sugar, Irish glucose and Irish creamery butter. Earlier supply arrangements included sugar from Tate & Lyle and glucose from Manchester, delivered through Derry and the Letterkenny railway and port systems. The brand's product portfolio became associated with traditional Irish sweets, including boiled confectionery, toffees, chocolate-coated products, mints and boxed assortments. A major strategic change came in 1960, when Oatfield stopped marketing packaged sweets made by other companies, including Cadbury's, Rowntree, Urney's, Bassetts, Jacobs and other suppliers. It instead concentrated on selling products made under the Oatfield name. The decision strengthened the brand's identity and was described as a major commercial success. Exporting began in August 1964, first to Northern Ireland and later to a wider group of markets. At the height of its reach, Oatfield products were exported to countries including the United States, Canada, Hong Kong, Australia, Kuwait, Greece and France. Ownership changed in February 1999, when Donegal Creameries PLC purchased the company for £783,750. In 2007, the Oatfield brand was acquired by Zed Candy, an Irish confectionery company known for chewing gum. Zed Candy subsequently closed the Letterkenny factory on 27 May 2012, and production was moved to the United Kingdom. The former factory was demolished in May 2014. Before closure, the site employed approximately 15 people and had production capacity of about 65 tons of sugar and chocolate confectionery per week. The former factory's main lines included Emerald, toffees, Eclairs and boiled sweets. Emerald, Colleen Assortment and Orange Chocolate were identified as particularly strong sellers. Following the relocation of production, the Oatfield brand continued to be sold in Ireland and its products came to be manufactured by Valeo Foods. Oatfield therefore represents both a long-running Irish confectionery name and a brand whose manufacturing base moved away from its historic Donegal factory while retaining a presence in the Irish market.

History

Oatfield began as an extension of the McKinney family's wholesale and retail business on Port Road in Letterkenny, County Donegal. The family started making sweets on 15 August 1927, using an open coke fire in a shed behind the shop. The operation was first called Mayfield Confectionery. Because another business in Manchester already traded under the Mayfield name, the company adopted Oatfield instead. The new name referred to the land on which the factory was established. The company acquired the factory land in November 1929, and the first sod was cut in February 1930. Six people worked for the business at that time. Production expanded from approximately three tons of confectionery each week in its early period to about 65 tons of sugar and chocolate confectionery per week in the years before the Letterkenny factory closed. The business became known as Ireland's oldest confectionery manufacturer and developed a broad range of traditional sweets. Supply arrangements reflected the changing Irish food and transport economy. During the 1930s, sugar was purchased from Tate & Lyle and glucose came from Manchester, with deliveries moving by ship and rail through Derry to Letterkenny railway station. Later, glucose was shipped from the Netherlands through Letterkenny Port. In subsequent years, the company used Irish sugar and Irish glucose, while Irish creamery butter remained an important ingredient in its butter-based products. In 1960, Oatfield made a defining commercial decision. It stopped marketing packaged products made by outside confectionery companies, including Cadbury's, Rowntree, Urney's Chocolates, Bassetts Licorice Allsorts, Jacobs Biscuits, William and Wood, Ritchies Mints and Milroy Confectionery. The company focused instead on its own sweets. This concentrated strategy helped establish Oatfield as a distinct consumer brand rather than simply a retailer or distributor of packaged confectionery. Exports began in August 1964, initially reaching Northern Ireland. At its peak, Oatfield products were sold internationally in markets including the United States, Canada, Hong Kong, Australia, Kuwait, Greece and France. The portfolio included boiled sweets, toffees, mints, chocolate products, glucose confectionery and assortment boxes. Emerald, Colleen Assortment and Orange Chocolate were among the strongest sellers, while Eclairs and several traditional toffee lines were important production categories. The business changed ownership in February 1999 when Donegal Creameries PLC acquired it for £783,750. Zed Candy, an Irish confectionery company associated with chewing gum, bought the brand in 2007. Zed Candy later closed the Letterkenny plant on 27 May 2012. Approximately 15 people were employed at the factory before closure, and production was transferred to the United Kingdom. The factory building was demolished in May 2014. After the closure and relocation, Oatfield continued as a consumer brand sold in Ireland. The available reference describes the products as subsequently manufactured by Valeo Foods. The brand's history consequently combines local Irish manufacturing heritage, international export activity, ownership changes and a transition from a Donegal factory operation to production outside Ireland.

  • 2014

    Factory site is demolished

    [1]

    The former Letterkenny factory was demolished in May.

  • 2012

    Letterkenny factory closes

    [1]

    The factory ceased operations on 27 May and manufacturing was subsequently moved to the United Kingdom.

  • 2007

    Acquisition by Zed Candy

    [1]

    Zed Candy acquired the Oatfield brand from Donegal Creameries.

  • 1999

    Acquisition by Donegal Creameries

    [1]

    Donegal Creameries PLC acquired the company for £783,750.

  • 1964

    Exports begin

    [1]

    Oatfield began exporting in August, initially to Northern Ireland, before expanding to markets farther abroad.

  • 1960

    Oatfield focuses on its own products

    [1]

    The company stopped marketing packaged sweets from other manufacturers and concentrated on confectionery sold under the Oatfield name.

  • 1930

    Construction of the Letterkenny factory begins

    [1]

    The first sod was cut in February, marking the transition from small-scale production toward factory manufacturing.

  • 1929

    Factory land is purchased

    [1]

    The company purchased the land on which its future Letterkenny factory would be built.

  • 1927

    First Oatfield sweets are made

    [1]

    The McKinney family produced its first sweets on 15 August in a shed behind its Port Road shop in Letterkenny.

Products and positioning

Traditional Irish confectionery with a strong regional heritage, centered on familiar boiled sweets, toffees, mints, chocolate products and assortment packs.

  • Boiled sweets

    Oatfield Emerald

    Emerald was one of Oatfield's principal traditional sweet lines and was identified among the brand's biggest sellers. It represents the company's emphasis on familiar, long-running boiled confectionery associated with its Irish manufacturing heritage.

  • Assortment confectionery

    Colleen Assortment

    Colleen Assortment was one of the strongest-selling Oatfield products. The assortment format reflects the brand's historic role in packaged Irish confectionery, combining multiple traditional sweet types in a single consumer offering.

  • Toffee confectionery

    Oatfield Eclairs

    Oatfield Eclairs belong to the brand's soft-toffee and chewy confectionery range. Eclairs were listed among the factory's main production lines, alongside boiled sweets, Emerald and other toffee products.

  • Toffee

    Oatfield Irish Butter Toffee

    Irish Butter Toffee is a traditional butter-based sweet associated with Oatfield's use of Irish creamery butter. It illustrates the brand's focus on familiar, ingredient-led confectionery rather than novelty products.

  • Liquorice confectionery

    Oatfield Liquorice Toffee

    Liquorice Toffee combines the brand's toffee-making tradition with liquorice flavoring. It forms part of Oatfield's broad traditional sweets portfolio.

  • Mint sweets

    Oatfield Mint Humbugs

    Mint Humbugs are hard mint confectionery within Oatfield's traditional boiled-sweets and mints range. The product fits the brand's longstanding emphasis on classic formats sold in the Irish market.

  • Chocolate confectionery

    Oatfield Orange Chocolate

    Orange Chocolate was identified as one of Oatfield's biggest sellers. It extends the brand beyond boiled sweets and toffees into flavored chocolate confectionery.

  • Glucose confectionery

    Oatfield Glucose Barley

    Glucose Barley is part of Oatfield's glucose-based confectionery range. The product reflects the company's historical production of glucose sweets and bars.

  • Glucose sweets

    Oatfield Glucose Fruits

    Glucose Fruits are fruit-associated glucose sweets in the Oatfield portfolio, representing the brand's traditional sugar-confectionery offering.

  • Mint sweets

    Oatfield Eskimo Mints

    Eskimo Mints are part of Oatfield's named mint products. They sit within the wider range of hard sweets and traditional confectionery associated with the brand.

  • Boiled sweets

    Oatfield Clove Drops

    Clove Drops are a traditional boiled-sweet product flavored with clove. They exemplify Oatfield's heritage-oriented assortment of distinctive classic sweets.

Brand decisions

  • 2012

    Relocation of manufacturing from LetterkennyStrategy

    Background

    The historic Letterkenny factory was operated by Zed Candy and employed approximately 15 people before closure.

    Action taken

    The factory was closed on 27 May and Oatfield production was moved to the United Kingdom.

    Aftermath

    The local manufacturing site was later demolished, while the Oatfield brand continued to be sold in Ireland.

  • 1964

    Start of export operationsStrategy

    Background

    After building a domestic confectionery business, Oatfield began seeking customers outside the Republic of Ireland.

    Action taken

    The company began exporting in August, first sending products to Northern Ireland and later to international markets.

    Aftermath

    At its peak, Oatfield products reached markets including North America, Asia, Australia, the Middle East and continental Europe.

  • 1960

    Concentration on Oatfield-branded confectioneryStrategy

    Background

    Oatfield had been marketing packaged sweets made by a range of other confectionery and food companies.

    Action taken

    The company stopped marketing those outside brands and focused entirely on confectionery sold under the Oatfield name.

    Aftermath

    The change was described as a major success and strengthened Oatfield's identity as an independent Irish confectionery brand.

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