Kold Blog
Cold Storage & Post-Harvest Answers
Practical, no-nonsense answers on PCM cooler boxes, post-harvest management, and electricity-free cold storage — for vendors, farmers, and restaurants across Rwanda and Africa.
How Can You Reduce Food Spoilage Without a Fridge?
You do not need a fridge to slow spoilage dramatically. Here are the practical steps that cut food loss, from handling habits to off-grid cold storage.
Read more5 min readComparisonsWhat Are the Best Cold Storage Solutions in Rwanda?
Fridge, cold room, ice, or PCM cooler box? Here is an honest look at the cold storage options in Rwanda, and which one fits a vendor, farmer, or restaurant.
Read more6 min readPost-Harvest TipsPost-Harvest Spoilage in Rwanda: Why It Happens and How to Stop It
In Rwanda, a large share of every harvest spoils before it earns a franc. Here is why post-harvest spoilage happens, and the single change that cuts it most.
Read more6 min readChoosing a BoxWhere Can You Rent Cooler Boxes in Rwanda?
If you sell or move fresh food in Rwanda, an ordinary ice box is not enough. Here is where to get a cooler box that holds cold for a full day, no electricity needed.
Read more5 min readCost & ROIHow Can Small Farmers Compete With Big Suppliers on Freshness?
Big suppliers don't beat small farmers on quality — they beat them on the cold chain. Close that gap with off-grid cold storage and the advantage flips.
Read more6 min readPost-Harvest TipsWhat Foods Benefit Most from PCM Cooling?
Anything that spoils in heat gains from steady cold — but some foods gain dramatically. Here's what a PCM cooler box protects best.
Read more5 min readChoosing a BoxHow Often Do I Need to Recharge or Replace the PCM?
PCM packs recharge in a freezer after each use and last a long time before they ever need replacing. Here's the simple upkeep — and Kold's free swap.
Read more4 min readChoosing a BoxWhat Size Cooler Box Do I Actually Need?
Kold boxes come in 50L, 120L, and 270L. Too small and you can't fit your harvest; too big and you're cooling empty air. Here's how to pick right.
Read more5 min readComparisonsWhat's the Best Cooler for Transporting Fresh Food?
Transport is where cold chains break. The best transport cooler holds steady cold for the whole trip, keeps food dry, and needs no power — here's why.
Read more5 min readCost & ROIIs It Worth Investing in a PCM Cooler for a Small Farm?
You don't need to gamble on a big purchase. Because a PCM box is rented, the question is simply: does the cold save you more than it costs? Usually, yes.
Read more5 min readCost & ROIHow Much Does Post-Harvest Loss Really Cost Me?
Post-harvest loss is a silent tax on every harvest. Up to 40% can spoil before sale. Here's how to calculate what it's really costing you.
Read more6 min readCost & ROIWhat's the Cheapest Way to Keep My Farm's Harvest Fresh?
A cold room costs a fortune to build and run. The cheapest real path to fresh harvest is smart handling plus a rented PCM box — no capital, no power bill.
Read more6 min readPost-Harvest TipsHow Do Farmers Keep Vegetables Fresh Until Market Day?
The farmers who show up with the crispest produce aren't lucky — they follow a routine. Here's how to keep vegetables market-fresh without a cold room.
Read more6 min readPost-Harvest TipsWhy Does My Produce Go Bad So Fast?
Wilting greens and mushy tomatoes aren't bad luck — they're heat, moisture loss, and time without cold. Here's the root cause and the fix.
Read more6 min readCold Storage BasicsWhat Temperature Should My Produce Cooler Be?
Most produce keeps best just above freezing — but 'steady' matters as much as the number. Here are practical targets and why PCM holds them well.
Read more5 min readPost-Harvest TipsIs Pre-Cooling Really Necessary for Fresh Produce?
Freshly picked produce carries 'field heat' that speeds spoilage. Pre-cooling is often the single highest-return step a small farmer can take.
Read more5 min readCold Storage BasicsHow Long Can Food Actually Stay Fresh in a PCM Cooler?
A Kold box holds a safe cold band for 24+ hours per charge — but how you pack and open it changes the real-world number. Here's how to get the most.
Read more5 min readComparisonsWhat's the Difference Between Regular Coolers and PCM Coolers?
A regular cooler buys you a few hours with melting ice. A PCM cooler holds a steady cold for 24+ hours and keeps food dry. Here's the honest comparison.
Read more6 min readCold Storage BasicsWhat Does PCM Mean in Cold Storage for Food?
PCM stands for phase change material. It's the science that lets a Kold box hold cold for 24+ hours without electricity — here's how it actually works.
Read more5 min read