London's food landscape has changed. The city is home to a growing network of urban farms, vertical grow operations, salad brands, and farm-to-fork subscription services that have turned fresh produce logistics into a serious business problem. Growing Underground operates beneath Clapham. GrowUp Farms supplies London retailers from its indoor growing facilities. Dozens of smaller urban farms and microgreens producers have built supply relationships with restaurants, grocers, and box scheme customers across the city.

What they have in common: their product is alive, fragile, and highly perishable. And the logistics challenge they face is fundamentally different from moving a parcel or a pallet of ambient goods. Fresh produce courier services in London need to understand how produce behaves in transit — not just that it needs to stay cold.

Why Fresh Produce Needs a Specialist Courier

Fresh produce logistics is more complex than refrigerated food delivery for one core reason: different produce types have radically different requirements, and getting them wrong does damage that cannot be undone.

The problems that a generalist courier typically causes for produce businesses:

  • Wrong temperature for the product. Leafy greens need to travel as close to 2°C as possible. Citrus fruit held at 2°C suffers chilling injury — rind pitting, flavour degradation, and accelerated rot once warmed. Tomatoes and peppers held at 4°C suffer the same way. A van set to a single temperature and loaded with mixed produce will either over-chill some products or under-chill others. There is no single "produce temperature" that works for all crops.
  • Mechanical damage. Produce is fragile. Leafy greens crush. Microgreens bruise. Tomatoes split. A driver trained to handle parcels and parcels only will not instinctively treat a tray of microgreens with the care it requires. Specialist cold chain drivers understand that produce is a living product, not a box of components.
  • Transit time. Produce shelf life is measured in days, not weeks. Every hour in transit is an hour of shelf life consumed. A produce delivery that takes six hours across London when it could have been done in two has cost the recipient four hours of shelf life they cannot recover.

Temperature Bands by Produce Type

Understanding the temperature requirements of the specific produce you are moving is the starting point for any produce logistics plan:

  • Leafy greens and herbs (1–4°C): Spinach, rocket, watercress, basil, and salad mixes all perform best near 2°C. Leafy greens are highly sensitive to ethylene gas (see below) and to temperature fluctuation. They will show wilting and yellowing within hours of significant temperature deviation.
  • Brassicas and root vegetables (0–4°C): Broccoli, cauliflower, Brussels sprouts, and most root vegetables tolerate temperatures down to just above freezing without damage. For urban farm produce delivered directly to restaurants, 2–4°C is the standard operating range.
  • Citrus and tropical fruits (8–12°C): Citrus, avocado, mango, and most tropical fruits suffer chilling injury below 8°C. Transporting these in a standard 0–5°C refrigerated van will cause visible and invisible damage. If you are moving citrus or tropical fruit, you need a vehicle set to a higher band.
  • Tomatoes, peppers, courgettes (8–12°C): These warm-season vegetables are chill-sensitive. Holding them at standard refrigeration temperatures causes texture degradation, flavour loss, and accelerated decay post-delivery. Many London food businesses are unaware that their tomatoes are being damaged in transit by over-chilling.
  • Microgreens and sprouted produce (4–7°C): A growing category supplied by urban farms, microgreens are fragile, oxygen- sensitive, and have a shelf life of seven to ten days at best. Any temperature deviation compresses that window significantly.

The Ethylene Problem in Produce Transport

Ethylene is a naturally occurring plant hormone that accelerates ripening and senescence. Many fruits — apples, pears, stone fruits, avocados, bananas — produce significant ethylene gas as they ripen. When ethylene-producing produce is transported in the same enclosed space as ethylene-sensitive produce, the results can be severe:

  • Apples stored with leafy greens will cause premature yellowing and wilting of the leaves within hours.
  • Bananas stored with cucumbers will cause the cucumbers to yellow and soften abnormally fast.
  • Even small quantities of ethylene-producing fruit in a mixed van load can compromise the shelf life of sensitive salad leaves loaded elsewhere in the vehicle.

The practical implication: if you are running a produce delivery that mixes ethylene-producing fruits with sensitive vegetables or salad leaves, they should ideally be in separate compartments or separate vehicles. A cold chain courier that understands produce handling will know this. One that does not will simply load everything together and deliver a mixed bag of results.

How Chillio's Temperature Options Map to Produce Needs

Chillio operates refrigerated vans at selectable temperature bands — 0–5°C for cold produce, and 5–10°C for produce requiring a slightly warmer environment — as well as cargo bikes for inner-city same-day consignments where transit time is the primary variable. For London urban farms, salad brands, and farm-to-fork subscription operations, this means you can specify the right temperature for your product rather than accepting a one-size-fits-all chilled service.

We understand that leafy greens and citrus should not share a temperature zone. We understand that microgreens need gentle handling and a short transit window. We understand that a farm-to-fork restaurant receiving produce at 7am has a completely different operational requirement to a subscription box brand dispatching on Friday afternoons. These are not generic delivery requirements — they are specialist produce logistics, and the courier you use should treat them as such.

If you are an urban farm, a salad brand, or a produce business in London that has been frustrated by temperature failures, mechanical damage, or late deliveries from a generic courier, it is worth exploring what a dedicated produce cold chain service looks like.