Cold Storage Shelf-Life Calculator & How Long Will It Keep?

Cooling slows respiration and decay. As a rule of thumb, the respiration rate roughly doubles for every 10 °C rise (the Q10 effect), so storage life roughly halves. This tool uses each commodity's optimum life and a Q10 model to estimate how many days it keeps at your chosen temperature.

Many warm-climate crops — banana, mango, tomato, citrus — are damaged if stored below a critical temperature (often 7–13 °C), even though that's above freezing. Symptoms include pitting, browning, failure to ripen and decay. The tool flags chilling injury and won't let cold mislead you into over-cooling sensitive crops.

Most fresh produce keeps best at high humidity (90–98% RH) to prevent shrivelling and weight loss. A few crops — onion, garlic, pumpkin — keep better dry (65–75% RH) to avoid sprouting and rot. The tool shows each commodity's optimum RH and warns if your humidity is too high or too low.

It varies: apples, grapes, carrots and leafy greens keep best near 0 °C; potatoes around 4–7 °C; bananas, mangoes and tomatoes at 12–14 °C. The tool displays the optimum temperature, humidity and shelf life for each commodity so you can set your cold room correctly.

They're planning estimates based on published optima (USDA Agriculture Handbook 66 and FAO guidelines) and a Q10 model. Real shelf life also depends on variety, maturity at harvest, handling, disease pressure and packaging — so treat the figure as a reliable guide, not a guarantee.

Yes — most fresh produce freezes around −0.5 to −2 °C, and freezing ruptures cells, causing collapse and decay on thawing. Keep storage temperatures above the commodity's freezing point. The tool warns when your set temperature risks freezing damage.

For cold-tolerant crops, near 0 °C does give the longest life. But for chilling-sensitive crops, going too cold actively shortens life and ruins quality. The optimum is a balance — cold enough to slow decay, warm enough to avoid injury — which is why the tool centres on each crop's own optimum.

A lot. Storing near the optimum can extend life many times over room temperature — apples can keep for months at 0 °C versus a couple of weeks warm. The tool shows the 'fold vs 25 °C' figure so you can see the payoff of cooling for each commodity.

Both — the model depends on temperature and humidity, not the size of the store. Use it to set a domestic fridge, a farm cold room or a commercial cold-chain target. Maintain steady temperature and humidity and good air circulation for results to match the estimate.

Ethylene-producing fruits (apples, bananas, ripe fruit) speed ripening and ageing of ethylene-sensitive produce (leafy greens, broccoli) stored nearby. This tool estimates temperature/humidity life; for best results also separate ethylene producers from sensitive crops in the same store.