Start with an exercise that takes fifteen minutes and is quietly uncomfortable. Take the eight products that make up most of your buying — the cost control course found that in the example restaurant they are about $11,500 of the $16,000 monthly food spend — and write next to each one where it comes from. Not the distributor's name: the origin. Most owners get to the third line before they have to write "I don't know", and that is not a failure of character. It is what buying from two or three distributors does, and it is the honest starting point for everything in this course.
🧾 The list, and the blanks in it
Fill in what you can from the invoices and the boxes in the walk-in, and leave the blanks visible. A typical result for an independent restaurant looks like this.
| Product | What the invoice says | What you actually know |
| Beef | A distributor, a cut, a price per kilo | The country, sometimes. Rarely the farm |
| Chicken | A brand | The brand, which is not an origin |
| Fish | A species and a price | Wild or farmed, if you asked. Usually not the area |
| Vegetables | A crate, sometimes with a label | Whatever the label says, when there is one |
| Cheese, oil, coffee, wine | Brands | Usually the most, because these carry their own labels |
The blanks are the subject of this course. Filling one of them takes a phone call, and filling all of them takes a year — which is why topic 3 insists on starting with a single product rather than the list.
And notice what the exercise costs: nothing. It uses invoices you already have, for the eight items the cost control course already told you to watch, because they are where the money is. That is not a coincidence — the items worth knowing about are the same items worth buying well, which is why the two courses point at the same short list from opposite directions.
🔀 Three different things called "sustainable"
The word covers at least three separate questions, and most arguments about it are two people answering different ones. It helps enormously to say which you mean.
- Where it comes from and how far it travelled. Distance, and whether the producer is somebody you could visit. This is the one everybody means by "local", and topic 2 explains why it is the least reliable of the three on its own.
- How it was produced. Farming method, animal welfare, fishing method, chemical use, water use. This is where the certifications live, and it is usually where the real difference is — a field tomato in season from two hundred kilometres away beats a heated-greenhouse tomato from twenty.
- Who produced it, and under what conditions. The people. Fair trade schemes are the visible end of it, and it is the part of the subject a restaurant can least verify on its own, which makes it the part where certifications matter most.
A restaurant cannot do all three at once for every product, and pretending otherwise is how this becomes a poster. What a small restaurant can do is pick the question that matters most for each of its main items — method for the eggs, origin for the beef, the certification for the coffee — and work on one at a time.
🧭 What belongs here and what does not
This is the second of the three sustainability courses and it sits tight against several others.
- Buying as a cost belongs to the cost control course: the specification, the three quotes, comparing by usable unit, negotiating terms. This course does not renegotiate anything — its subject is origin, not price.
- Packaging belongs to the previous course, which counted it in pieces and dealt with compostables. The catalogue version of this subject had a whole chapter on packaging; it is already written and it is not repeated here.
- What is left over belongs to the waste course, the next one.
- Traceability for safety belongs to the food safety courses. Knowing which supplier a batch came from so it can be withdrawn is a different job from knowing where it came from so you can say so. Same paperwork, different purpose.
- Telling people belongs to the marketing courses — but the warning about overclaiming came from the previous course, and topic 4 and topic 6 apply it here, because this is the subject where restaurants most often say more than they can prove.
💵 What this actually costs, once
The last thing to establish before starting is that sourcing decisions cost money, that the amount is usually smaller than people fear, and that it is knowable in advance rather than a matter of faith.
Take the beef in the example restaurant. Five hundred burgers a month at a hundred and eighty gram portion, with ten percent trimmed away, is a hundred kilos of raw beef. Moving from the current supplier at $12.00 a kilo to a named local producer at $13.20 — ten percent more — costs $120 a month. That is 0.75% of the food bill, and it is the whole price of being able to say where the beef comes from.
Whether $120 a month is affordable is the budgeting course's arithmetic, and it takes one division. What matters here is the shape of the decision: it is one product, the number is small and specific, and it either survives that arithmetic or it does not. Sourcing goes wrong when it is decided as a philosophy instead of as eight separate decisions with a price on each.