Fortnum & Mason, Tritensil

Reinventing the combination knife, spoon and fork

Reviving a 100 year old product

We worked with Fortnum & Mason on reviving the combination, knife, spoon and fork, a product they are credited with inventing. It was first shown in Fortnum’s 1914 Christmas catalogue for Army officers. Now, 100 years after its initial introduction, the F&M Tritensil has been reintroduced as part of Fortnum & Mason’s picnic and takeaway offer.

Menu analysis

We analysed F&M’s likely takeaway and picnic food offerings to understand the optimum functionality for the Tritensil. This led us to optimise the fork for salads, the spoon for desserts and the knife for simple cutting and for spreading the clotted cream and jam on F&M’s iconic cream teas.


Replacing three separate items of cutlery with one bio plastic Tritensil reduces weight by 46% and CO2 by 50%

Left & Right

One of the challenges of providing three functions in a single item of cutlery is that the design is inherently a compromise. To reduce the level of compromise, we decided to remove one ergonomic restriction, making unique left and right-handed versions of the Tritensil. The asymmetric design is recognisable and unique and suggestive of Fortnum’s reputation for perfection. Modern manufacturing processes mean that the Tritensil can be produced in appropriate quantities for each type.

Plastic and metal

We created a design that could be realised in metal or plastic. The plastic version is used in cafes as a takeaway plastic item in signature Eau de nil self coloured bio-plastic. The stainless steel version is offered as a picnic accessory.

Tritensil is made from a bio based resin that reduces the non-renewable content of the plastic by 9%