Add some fizz and funk to your drinks menu with ferments

Fermentation has quietly become one of the most powerful tools in a bartender’s arsenal. Its rise aligns perfectly with the growing demand for functional, flavour-forward beverages, whether that’s in pubs and bars or Michelin-level restaurants. Fermentation offers operators a way to deepen complexity, introduce natural effervescence and create drinks with a story – all while tapping into the consumer appetite for a healthy product.

At its core, fermentation unlocks interesting layers of acidity, aroma and texture. For cocktails, this means as bartenders we can move beyond citrus and syrup into ingredients that feel more crafted and culinary. A kombucha reduction can replace a shrub, lacto-fermented fruit can add savoury brightness, and a kefir whey wash can soften spirits without diluting character. These techniques allow operators to build drinks that feel both innovative and rooted in tradition, as well as pairing with the kitchen’s seasonal offering.

In a pub setting, fermentation can be introduced through accessible and more everyday formats. House-made kombuchas or water kefir can sit alongside craft beer and cider, offering guests a non‑alcoholic option that feels grown-up rather than a sad imitation. These drinks can also be used as mixers – for example, a kombucha spritz or a kefir-based shandy. Because fermentation naturally produces carbonation and acidity, these drinks often reduce the need for added sugar, which sits well with those looking for a functional, healthy option.

A sommelier in a restaurant can take fermentation further, using it as a bridge between food and beverage, carrying the restaurant’s flavour philosophy directly to the glass. Lacto-fermented vegetables, koji-infused fruits and fermented teas can be incorporated into cocktails that mirror the flavours of the tasting menu. A fermented berry vinegar could form the backbone of a zero-proof pairing, or perhaps leftover coffee grounds, normally destined for the bin, can lead to a zingy alternative to a traditional espresso martini. These are drinks that don’t simply accompany a tasting menu; they converse with it, amplifying flavour and extending the story of each dish.

Operationally, fermentation can be surprisingly achievable. You can produce small-batch ferments with minimal equipment: jars, airlocks and temperature control sitting alongside a clear HACCP framework. Alcoholic ferments such as ginger beer require monitoring but are manageable; non‑alcoholic ferments, such as kombucha or kefir, can be even simpler. Staff training is essential – understanding pH, sugar levels and fermentation timelines ensures consistency and safety.

By treating fermentation as a culinary tool rather than a trend, operators reinforce a powerful message – the drinks programme isn’t an accessory, but an integral part of the restaurant’s identity. It becomes a continuation of the chef’s thinking, a reflection of the restaurant’s sustainability ethos and a showcase of technique in its own right. In this context, fermentation isn’t just a method – it’s a language that connects food and beverage into one experience.

Nicola Tickle is co-owner of Heft in Newton in Cartmel, Cumbria

Portrait: Jenny Jones Photography. Top photo: Tim-Oliver Metz on Unsplash