What happens when your only supplier lets you down

If one supplier is your only source for a consumable, their problem becomes your stopped line. It doesn't take a disaster. A late lorry, a short batch or a supplier that quietly changes a spec is enough. The fix is a second approved source, set up before you need it.

How common is supplier disruption?

More common than most sites plan for. The Business Continuity Institute's 2024 survey found that almost 80% of organisations had experienced supply chain disruption in the previous 12 months. That's global data across all sectors, not UK food alone.

Of those, 43.6% of disruptions came from third party failures. That means the supplier, or the supplier's supplier, not your own site.

Closer to home, the Food and Drink Federation's Q2 2026 State of Industry report puts business confidence at minus 31%, the ninth negative quarter in a row. It also shows that small manufacturers' costs rose 6.3%, against 1.2% for large ones. A smaller site has less room to absorb a rush order or a stoppage.

The pressure on supply isn't easing. The Office for National Statistics reports input prices up 6.1% in the year to August 2026. The FDF's July dashboard has UK haulage up 6.7% and Brent crude at $83.40. When a supplier's costs jump like that, thin-margin lines and slow-moving consumables are the first to see short batches or late loads.

Timing makes it worse. Lunar New Year 2027 falls on Saturday 6 February, and one forwarder expects a shutdown from about 30 January to 14 February with recovery around March. The Red Sea routing is still fluid, and the Cape route alone added 10 to 14 days. A single supplier with stock on the water has no way round that.

Why are consumables the weak spot?

Because they're easy to overlook. Ingredients have approved supplier lists, specs and audits. Gloves, wrap, pallet edges and layer pads are bought on price, usually from one supplier, often by whoever placed the last order.

They're low in value but high in dependency. You can't ship a pallet without wrap. You can't run a line without gloves on the packers' hands. The product is cheap, so the stock is lean, and the stock is lean because it's cheap. One late delivery then stops a line that's making money.

What does a stopped line cost?

Here's an illustrative example, with assumed numbers. Say a line normally produces £6,000 of finished product in a shift. It stops for half a shift because the gloves ran out.

That's £3,000 of output delayed. Eight people stand idle for four hours at an assumed £15 an hour, which is £480. You buy emergency gloves from a local merchant at an assumed £4 a box extra on 20 boxes, which is £80, plus a driver. Then you pay overtime to catch up, say £600.

Call it £1,160 in direct costs on an item that, say, costs £100 for the week. And that's before the retailer order that ships late, or doesn't ship.

The absence of the item matters more than its price. Which is why price per pack is the wrong measure of a consumable. Cost per use, and the cost of running out, tell you more.

Not sure which of your products could stop a line? We'll go through them with you on site.

Does dual sourcing mean double the admin?

Not if you set it up properly. The mistake is to run two suppliers at full volume, with two sets of invoices, two logins and two lots of paperwork. That's twice the work for little gain.

What you want is one primary source and one approved alternate. The alternate is qualified in advance, with its spec locked and paperwork filed, and used only when you need it, or for a small share of volume to keep it warm.

How do you set up approved alternates?

Start by listing every consumable that stops a line or blocks a shipment if it isn't there. Wrap, edges, layer pads, gloves, labels, hairnets. Mark each one as single source or not.

For each single-source item, write the spec down. Include the size, thickness, material, strength and any compliance requirements. Then find a second manufacturer that can meet it, and test a sample against the spec before you approve it.

Lock the spec. The alternate has to be an exact match to what's written, not close enough. If it's different, you re-approve it in writing before it goes on the line.

Keep the paperwork on file. Under BRCGS Issue 9, as commonly summarised, supplier approval is a fundamental requirement, and it covers primary packaging. Plastics that touch food need a declaration of compliance under Regulation 10/2011, naming the issuer, the manufacturer, the material, the date and the conditions of use. Get the alternate's documents before you need them, not on the morning of the delivery.

The buyer owns the list, QA signs off the alternate, and operations confirms it runs on the line. Review the list every three months. Review each spec at least every three years, and every time a supplier changes a material, size or factory.

What should you ask your suppliers?

Ask where the product is made and whether there is more than one factory. Ask what their lead time is today and how it changed in the last six months. Ask how much stock they hold of your product, and whether they'd tell you before changing a material, a size or a factory. Ask for their Christmas and Lunar New Year shutdown dates in writing.

A good supplier answers quickly and in detail. One that dodges the question has told you something.

How does KP handle this?

There are several manufacturers behind every product we supply. If one is late or short, another can fill in, and your spec stays the same.

We test what you buy and lock the spec, and we never swap without your approval. We buy ahead and hold stock in the UK, so you call it off and pay on delivery. You still get one account, one order, one delivery and one invoice, so a second source doesn't mean a second set of admin.

Every client also gets a login with every spec sheet, certificate and declaration of compliance for what they buy from us.

Frequently asked questions

Is single sourcing always a bad idea?

No. It can be sensible for stable, low-risk items. It becomes a problem when the item would stop a line and there's no approved alternative.

How many suppliers do I need for each consumable?

Two approved sources is usually enough, with one as primary. More just adds admin.

Can I swap to a backup supplier in an emergency?

Only safely if you've approved it first. Swapping to an untested product on the day can cause line problems, and for food contact items you need the paperwork too.

How do I know which items are the biggest risk?

Ask what happens if you run out tomorrow. If the line stops, it's a risk. Rank those by how long it would take to get a replacement.

Send us your single-source list

Send us your list of single-source consumables and we'll map the backups. We'll show you where one failure would stop the line and which approved alternates could cover it.

You can also book our free site check. We walk the site with your operations team for about 30 minutes and send a written report. There's no contract, and testing is arranged only where it's needed.

Email sales@kptrading.uk or call 020 4576 5500.

Sources

Business Continuity Institute, Supply chain disruptions drive increased tier mapping and insurance uptake: https://thebci.org/news/supply-chain-disruptions-drive-increased-tier-mapping-and-insurance-uptake.html

FDF State of Industry Report Q2 2026: https://www.fdf.org.uk/fdf/resources/publications/state-of-industry-reports/state-of-industry-report-q2-2026/

Techni-k, Managing suppliers: https://techni-k.co.uk/supplier-management/managing-suppliers/

ASC Food Safety, BRCGS Food Issue 9: https://ascfoodsafety.com/?p=41258

Legislation.gov.uk, Regulation 10/2011 Article 15: https://www.legislation.gov.uk/eur/2011/10/article/15

ONS Producer price inflation, August 2026: https://www.ons.gov.uk/economy/inflationandpriceindices/bulletins/producerpriceinflation/latest

Food and Drink Federation prices dashboard, July 2026: https://www.fdf.org.uk/globalassets/business-insights-and-economics/economic-insights/fdf-prices-dashboard-july-2026.pdf

SEKO Logistics, Lunar New Year planning guide: https://www.sekologistics.com/emea-en/resource-hub/knowledge-hub/lunar-new-year-complete-supply-chain-planning-guide-for-asia-sourcing/

Zencargo, Red Sea reopening 2026: https://www.zencargo.com/resources/red-sea-reopening-2026/

Illustrative figures are labelled in the text. Images are illustrative.