It took an out-of-this-world arrival to get that perfect chemical combination for water to fill our planet. Water may have come to earth by way of comets and asteroids. Morning dew and roaring falls inspire poets. Hurricanes and typhoons wreak devastation.
It's also necessary to store and handle the cut onions properly to further reduce the risk of bacterial contamination. Cutting Onions Ahead of Time Cutting onions the day before you need them is safe when you take the proper precautions.
Again, they will need to be kept here for 2-3 weeks until they are dried out. I usually keep an eye on the tops of where I cut the stems off and if they are all dried they are ready for long term storage. 4 Storage. After 2-3 weeks have passed and the onions are dried out, they can be put away for long-term storage.