Getting Chilli and Green Pepper Past the Two-Week Mark
Left in standard cold storage, chilli and green pepper hold reasonable quality for roughly two to three weeks before shrivelling, chilling injury, or decay set in. Published MAP trials have pushed that out considerably further — in some cases past six weeks — which makes packaging one of the highest-leverage decisions for exporters of this crop.
Chilling Injury Sets the Temperature Floor
Chilli and pepper are chilling-sensitive below roughly 7°C (45°F). Storage at 5°C reduces water loss and slows ripening initially, but chilling injury — pitting, calyx darkening, decay — typically appears within about two weeks at that temperature. The workable storage range is generally 7–13°C: warm enough to avoid chilling injury, cool enough to meaningfully slow ripening and decay.
Humidity Is the Other Half of the Equation
Water loss is the main visible driver of quality loss in this crop — shrivelling and softening happen fast once relative humidity drops. At the same time, excess condensation inside packaging increases decay risk from soft rot and Botrytis. This is precisely the balance MAP packaging is designed to manage: reducing water loss without creating a wet, decay-prone environment inside the bag.
What MAP Packaging Changes
Published trials combining low-temperature storage with MAP packaging have extended green chilli shelf life well beyond standard cold storage alone — with some studies reporting over six weeks of marketable quality at 8°C when MAP was used, compared to a much shorter window without it. The atmosphere modification reduces respiration rate and slows the physiological changes that drive shrivelling and softening, while the film’s water vapour transmission rate manages humidity from both directions — retaining enough to prevent shrivel, releasing enough to prevent condensation.
What This Means for Packaging
A Lifepack® MAP bag engineered for chilli and pepper balances these two competing pressures — moisture retention against condensation risk — while holding the optimal 7–13°C range. Where cold chain breaks are a risk (common on longer sea-freight routes), a Fresh Up® ethylene absorber sachet helps limit the accelerated ripening and softening that follows any ethylene exposure during a temperature excursion.
The Practical Takeaway
Chilli and green pepper are genuinely well-suited to MAP packaging — the research shows a clear, substantial shelf-life benefit over standard cold storage alone. The main discipline required is staying inside the chilling-injury temperature floor while letting the packaging do the humidity balancing work.
