How do I prevent rotting during storage?

Preventing onion rot begins before you even store them! I realized this the hard way when a single hidden rotten bulb rotted a whole crate of onions! Rot spreads rapidly in onions in storage, ruining many months of garden effort. Follow consistent prevention protocols, and you can expect healthier, firmer bulbs that retain flavor for at least half a year or more!

Humidity is essential in battling rot; aim for a humidity level between 60-65%, as measured by your hygrometer. Humidity levels above 70% will incentivize mold, while moisture below 55% will cause your flowers to shrivel. I use silica packs when it's very humid, or I use shallow water trays in dry climates. This achieves a beautiful moisture balance.

Establish regular inspection routines. Inspect bulbs in every two weeks under bright light. Gently squeeze the bulb if soft. Any with dark spots or mold should be removed immediately. After I established this habit, I lost fewer bulbs, and I was able to catch problems early.

Create air circulation systems. Still air promotes pathogen development. Installing small fans in storage areas works well. Providing some space between containers (6 inches) also helps. The above practices reduced my rot losses by 80% versus no air circulation.

By succeeding at rot prevention, you will enjoy fresh garden-cured onions for months. The crisp bulbs add a sweet flavor to soups and roasts. When your homegrown quality can be preserved through proper storage methods, the value of your harvest is showcased in the meals you prepare.

Read the full article: When to Harvest Onions: Complete Guide