A chip shop's profit lives in four places: the fish, the spuds, the oil and the packaging. Everything else is rent, wages and the meter. Miss a change in any of those four and the till won't tell you. You'll find out weeks later, when the margins look thin and nobody can explain why.

A weekly count closes that gap. It takes about twenty minutes, needs no software, and turns "I think we've got enough" into a number you can order against. Print the checklist below, pin it to the office wall, and work through it every week.

Why Weekly Beats Monthly

Monthly counts are for your accountant. They tell you what happened a month ago, which is exactly when it's too late to fix it. A week is long enough to show a pattern and short enough to correct it. A crate of packaging that has quietly vanished cannot hide for seven days the way it hides inside a monthly figure.

Weekly also matches how you buy. Fish, oil and potatoes arrive on a schedule. If your count and your order happen on the same morning, you order what you need instead of what you assume.

Before You Start

A few rules make the difference between a real count and a ritual:

• Same day, same time, every week. First thing, before the delivery lands.
• Count before you order, never after. Otherwise you're counting your optimism.
• One person counts, someone else checks the order against the sheet. Two sets of eyes catch typos and hopeful arithmetic.
• Write what you see, not what you expect. "Should be five boxes" is how stock errors begin.
• Keep every sheet for a year. Twelve weeks of history tells you what a normal week looks like, and normal is the only benchmark worth comparing against.

Kit needed: printed sheet, pen, scales, fryer oil dipstick or sight glass, a torch for the back of the freezer, and a calculator.

The Count Sheet, Line by Line

Fish

Count fish in the units you sell it in, not just in boxes. If you buy boxes of cod portions, count full boxes, part boxes and loose portions, then convert everything to portions. Note the weight printed on the box. Check for freezer burn, ragged edges or anything that has been thawed and refrozen — that stock is a write-off you want to see now rather than on a plate.

Weigh three random portions. If your supplier's portions have drifted lighter, customers notice long before your accounts do.

Potatoes and Chips

Count full bags, part bags and any prepared chips sitting in the cold store. Note the variety and the size count if your supplier states one, because a change in either will change your yield and your frying times. If you peel and chip in house, count raw sacks separately from prepared chips so you're not double-counting the same potatoes.

Then weigh one standard portion of chips on the counter scale. Chips are the easiest thing in the shop to over-serve and the hardest to notice. A slightly heavier scoop, a slightly fuller bag, and your weekly potato usage creeps up while sales stay flat.

Fryer Oil

You cannot count oil by looking at it. Use a dipstick or read the sight glass before any oil is added or drained for the day, and record four things: litres in the pans, litres of fresh oil in the store, the number of filter cycles that week, and the number of top-ups.

Then read the oil itself — colour, smell, foam, and how early it starts to smoke in the first fry of the day. If it foams sooner than it used to or smells acrid when hot, quality has dropped. Follow your supplier's guidance and your local food safety requirements on when oil must be changed, and write the change on the sheet so the cost lands in the right week.

Oil is where wastage hides best. A fryer running too cool, a basket left in too long, a filter skipped on a quiet Monday: the oil pays for all of it, and the sheet is the only place it shows.

Packaging

The quiet line. Count boxes, bags, trays, wrapping paper, forks, napkins, sauce sachets and carriers — in sleeves or packs, not singles, or you'll be there all night.

Watch the ratio. If you sold roughly the same number of portions as last week but burned through an extra sleeve of bags, something changed: a new starter double-bagging, a bag size that no longer fits the box, or stock leaving by the back door. Store packaging off the floor and away from the door, and keep the count honest by counting the same shelves in the same order each week.

Usage Versus Purchases: The Only Calculation You Need

Opening stock plus purchases minus closing stock equals usage. Run that for each of the four lines, then compare usage to sales.

If usage rises while sales stay flat, you have a portion or wastage issue, not a buying issue. If usage falls while sales hold steady, check that portions are not quietly shrinking. You don't need percentages to two decimal places. Direction and size are enough: up, down, or about right.

Count what you buy in the units you sell it in. A number you can't compare to a portion isn't a stock count — it's a guess with a decimal point.

Turning the Count into an Order

Set a par level for each line: the amount you want in the building on delivery morning. Build it from a normal week's usage plus a small buffer for a busy weekend or a late lorry. Not so much that cash sits in the freezer and oil goes stale before it's opened.

Then order to par, not to feeling:

1. Estimate the coming week's usage from the last four weeks, not last week alone.
2. Subtract what is already in stock.
3. Add your buffer.
4. Round up to the pack size you can actually buy.
5. Note anything unusual — a match, a festival, a school holiday — before you place the order.

Handling Wastage Without Blame

Wastage happens in every shop: a burnt fillet, a dropped bag, an oil change that comes a day early. The sheet exists to spot it early, not to catch anyone out. Write the reason next to any unusual figure — a busy Saturday, a new fryer, a delivery that arrived warm. If staff know an honest line on a sheet won't get them shouted at, they'll tell you the truth, and the truth is what makes next week's order accurate.

The Twenty-Minute Weekly Routine

Pick your slot and protect it. A quiet mid-morning before the delivery, or the last half hour after close on the same day each week. Then work through this, in order:

1. Print the sheet and fill in the date.
2. Count fish, potatoes, oil and packaging.
3. Weigh one chip portion and three fish portions.
4. Log the oil readings and any change of oil.
5. Do the usage calculation for all four lines.
6. Place the order against your par levels.
7. File the sheet where you can find last month's.

If a week goes sideways and you can only manage part of it, do the count and the order. Those two carry the rest. Everything else is detail you can catch up on.

One last note: if you're making decisions about tax, staffing or premises based on these numbers, get proper advice from an accountant who deals with food businesses. The count gives you the facts. The advice tells you what to do with them.

Photo: Couleur / Pixabay