Optimising Purchasing for Your Catering Business: Less Waste, Better Prices
In many catering businesses, purchasing still runs on habit: call the same supplier, order by gut feel, and only find out afterwards what's left over. That costs you money in two directions, because you buy too much for one event and end up short for the next. A few consistent steps in your purchasing process, from forecasting demand to supplier agreements, keep you in control of both your stock and your purchase prices. In this article we show you how to organise purchasing more intelligently without turning it into a full-time job.
Why purchasing so often stays a matter of gut feel
Most caterers start small: one regular wholesaler, a list on paper or in an app, and ordering based on experience. That works fine as long as the number of events stays manageable. Once you're running several events at once, that same experience becomes a risk. You no longer remember exactly what was left over from the last similar event, and you only spot a wrong call once the van is already at the door, or once you're just short for a last-minute top-up.
Optimising purchasing doesn't mean automating everything. It means building in a few consistent habits, so your estimate comes together the same way every time instead of depending on whoever happens to pick up the phone that day.
Start from your calendar, not your stock
Good purchasing starts with what's booked over the coming weeks, not with what's still sitting in the walk-in. Go through each event to see how many guests are coming, what menu's been agreed, and which ingredients repeat across several events. That way you can spot where to combine orders at a glance, instead of placing three separate orders for the same base products across three unrelated events.
- Group events with a similar menu together in your planning, even if the dates are far apart.
- Work with a small margin above the confirmed guest count rather than ordering to the exact number.
- Note what was left over after each event, so you can order more precisely next time round for a similar one.
Standing agreements with your suppliers
Anyone who keeps placing one-off orders usually pays the highest price, and ends up last in line when a supplier has to choose who gets priority during a shortage. A few standing agreements save margin straight away: guaranteed volumes at a fixed price for your recurring products, a fixed order day so the supplier can plan around your delivery, and a clear understanding of what happens with a last-minute change in numbers. Caterers who've put this in place once don't have to renegotiate every week.
Order lists per event instead of one long list
One running purchase list for your whole business sounds tidy, but in practice you lose track of which product was meant for which event. Work instead with a separate order list per event, tied to the confirmed guest count and menu. That way you can see straight after the event whether your estimate held up, and you build a real picture of your actual usage per type of event over time.
Keeping an eye on purchase prices without daily tallying
You don't need to check the numbers every evening to stay in control. Pick a fixed moment, after every big event or once a month, and compare your actual purchase price against what you budgeted in the quote. If a product is running structurally more expensive than expected, you know you either need to talk to the supplier or adjust your pricing before it keeps eating into your margin.
Optimising purchasing isn't a project you finish once. It's a handful of habits you keep up: planning from your calendar, standing agreements with suppliers, and checking after each event whether your estimate held up. That keeps you in control of both your stock and your margin, without costing you extra time.
Frequently asked questions
How much stock should I keep as a buffer?
That depends on the product. For perishables, keep as little buffer as possible and order specifically per event. For non-perishable staples you use often, a small standing buffer can help if a supplier delivers late.
Is automated purchasing only for large catering businesses?
No. Even as a small business you benefit from standing order lists per event and a fixed rhythm with your suppliers. Scale mostly affects how much time you save with it, not whether it's worth doing.
How do I avoid over-ordering for an event?
Work with a small, fixed margin above the confirmed guest count rather than a generous gut-feel estimate, and record what was left over afterwards. After a few similar events, you'll spot a pattern and can order more precisely.
What if a supplier becomes structurally too expensive?
First check whether it's a temporary price rise or a structural difference. Then have the conversation with concrete figures, and keep a second supplier in reserve for your key products so you're not dependent on a single one.