You've made a great vegan dish. Then it's cooked in the same oil as the fish, finished with a knob of butter, or served with the tongs that just picked up a sausage. To a vegan customer, it isn't vegan any more.
The good news is that most cross-contamination comes from a handful of habits, and fixing them doesn't need a separate kitchen. If you'd like a quick sense of where you stand overall, take the free 10-point vegan-friendly menu check.
What vegan customers worry about
Different vegans draw the line in different places. Many are happy to eat in a kitchen that also handles meat, as long as their dish has been prepared with care. Fewer are comfortable with food that has shared oil or a grill with meat or fish. What everyone wants is honesty, so they can decide for themselves.
These are the most common problems:
- chips and other vegan items cooked in the same fryer oil as fish or meat
- shared grills and hotplates
- butter on toast, vegetables or bread by habit
- shared boards, knives, tongs and ladles
- dairy milk left on the coffee machine's steam wand or in shared jugs
- a garnish of cheese, honey or a creamy dressing added without thinking
Vegan is not the same as allergen-free
This matters for safety. A vegan dish is made without animal ingredients, but that doesn't make it safe for someone with a milk, egg, fish or crustacean allergy. The Food Standards Agency advises food businesses to use a precautionary allergen statement, such as "may contain milk", alongside a vegan label when cross-contamination can't be ruled out. Never tell a customer with an allergy that a dish is safe just because it's vegan.
You still need to give customers information about the 14 major allergens in the food you serve, and your vegan label doesn't replace that. Keep your allergen procedures separate from your vegan ones.
Kitchen habits that make the biggest difference
Fryers
A dedicated fryer is the gold standard. If you can't have one, keep one fryer for chips and vegan items only, with no fish or meat. If even that isn't possible, tell customers clearly that the fryer is shared.
Grills, hotplates and ovens
Cook vegan items in a clean pan or on a clean tray, or on a cleaned section of the grill. In the oven, use separate trays and cook vegan items on the top shelf so nothing drips on them.
Boards, knives and utensils
Keep a colour-coded set of boards and knives for vegan prep. Pick a colour your kitchen doesn't already use for something else. Purple is often used for allergen-free prep, so choose a different one to avoid confusion. On the pass and in displays, give every dish its own tongs or spoon.
Storage
Label vegan ingredients clearly and store them covered and apart from raw meat and dairy. Keep vegan spread, mayo and cheese in clearly marked containers so they don't get mixed up with the dairy versions.
Finishing and garnishing
This is where most slips happen: a knob of butter, a sprinkle of cheese or a drizzle of honey added out of habit. Write the garnish on the spec sheet for every vegan dish, and mark vegan orders clearly on the ticket.
Coffee and drinks
Purge and wipe the steam wand between dairy and plant milks, and keep a separate, clearly marked jug for plant milk.
Make it part of the routine
- Write a short spec for every vegan dish: ingredients, garnish, and which pan, tray or fryer to use
- Mark vegan orders clearly on tickets and screens
- Show new staff the vegan routine on their first day
- Check bought-in products again whenever a supplier or recipe changes
Be honest with customers
When you can't separate something, say so. Clear, friendly answers build far more trust than vague ones. Here are a few lines your team can use:
- "Our chips are cooked in a shared fryer with fish. The roast potatoes are cooked separately in vegetable oil."
- "The burger is usually cooked on the same grill as meat, but we can cook it in a clean pan for you."
- "Everything in this dish is vegan, but it's made in a kitchen that also uses milk and eggs."
Put the key points on your menu too, so vegans don't have to ask. Our guide on how to label vegan options shows how.
Frequently asked questions
Here are the questions venue owners ask me most about shared kitchens.
Do we need a separate vegan kitchen?
No. Separate boards and utensils, a clean pan or tray for cooking, and honesty about any shared equipment are enough for most vegan customers.
Can we still call a dish vegan if it's cooked in a shared fryer?
There's no specific legal definition of "vegan" for food in the UK, but your menu mustn't mislead customers. If a vegan dish is cooked in shared oil, say so on the menu or make sure staff tell customers, so they can decide for themselves.
Is a vegan dish safe for someone with a milk allergy?
Not automatically. Vegan dishes can be prepared alongside milk, egg, fish and shellfish. Follow your allergen procedures, and use a precautionary statement such as "may contain milk" where cross-contamination can't be ruled out.
What's the single most useful change?
For most pubs and cafés, it's the fryer. In my experience it's the question vegans ask most, so a dedicated fryer, or at least an honest answer about it, makes a big difference.
Want it all in one place?
The Vegan-Friendly Business Toolkit takes you step by step through understanding vegan customers, building your menu, training your team and getting found, with a full 40-point audit and printable staff pages.