Hospitality has one of the highest staff turnover rates of any sector in the UK. Depending on the venue and region, annual turnover can run at 70% or higher. Some operations turn over their entire front-of-house team more than once a year.
Most owners know this, live with it, and have developed ways to manage the constant cycle of hiring and training. What's less discussed is the specific risk it creates for allergen management, and why that risk compounds the longer it goes unaddressed.
Where allergen knowledge lives
In most independent restaurants, allergen knowledge lives in people. The head chef who knows which dishes have hidden allergens in the sauces. The manager who's been there long enough to remember when the supplier changed an ingredient. The senior server who knows the right answers and can be called on when a customer asks.
This isn't a system. It's accumulated knowledge held by individuals. And when those individuals leave, the knowledge leaves with them.
The new server doesn't know the house dressing has sesame in it. The new line chef doesn't know which dishes were reformulated last season. The new manager is learning the operation as they go and doesn't have the full picture yet.
The timing problem
New staff don't tend to join during quiet periods. They join when the restaurant is growing, when someone left in a hurry, when the busy season is starting. They're often on the floor and taking responsibility before any formal training.
The people most likely to give an uncertain or incorrect answer to an allergen question are also the most likely to be working during a busy service. The staff members with the most knowledge tend to be the most senior, and the least available when a customer at table six has a question mid-service.
The multi-site version of this problem
For operators running two or more sites, the turnover problem multiplies. Different venues develop different practices. A standard set of procedures at the original site isn't automatically replicated at the second. A staff member trained at one venue doesn't arrive at another already knowing the menu or the allergen details.
Each new site is a new instance of the same risk: a team of varying experience, managing allergen information through a system that depends on individual knowledge rather than a shared reference. The operational inconsistency this creates isn't always visible until something goes wrong.
The induction gap
Most restaurant induction processes cover the practical basics. The till system. The menu. Opening and closing procedures. Health and safety.
Allergen information, if it features at all, is covered briefly. “Here's the spreadsheet”, without giving new staff the confidence to answer specific customer questions accurately. The gap between "I've seen the allergen spreadsheet" and "I know what's in every dish and which preparation methods pose a cross-contamination risk" is significant.
New staff won't always admit they're uncertain. In a busy service, the instinct is to admit you don't know and to check for the answer.
The fix isn't better training
Better induction helps, but it doesn't solve the structural problem. If the allergen knowledge lives in people, the knowledge base needs to be re-thought.
The fix is removing staff from the equation as the primary source of allergen information. Not removing them from the conversation, because they're still the ones talking to customers, but giving them a reliable reference they can point the customer to, and trust to be current.
A system where allergen information lives in the main menu itself, which is visible to staff and customers and updated by the person who makes menu decisions, doesn't lose knowledge when a staff member leaves. It's not dependent on who's working tonight. It's the same answer, every time, regardless of how long the server has been there.