Three words: reservoir for bacteria.

When it comes to handling eggshells in the kitchen, there are some precautions to take.

But did you know there are some good uses for those used eggshells?

a dozen brown eggs in a cardboard carton

Credit:Caitlin Bensel; Food Stylist: Torie Coxe

Here’s how to keep everything clean and some better uses for your empty shells.

Caitlin Bensel; Food Stylist: Torie Coxe

Storing Eggs

First things first.

When shopping for eggs, always check for shells that are clean with no cracks.

Cooking it fully will kill any bacteria that may form.

Store eggs in their original container in the coldest part of the refrigerator, the middle or bottom shelf.

Save the egg compartment on the door for condiments like ketchup and mustard.

Storingeggs on the doorsubjects them to temperature changes every time the door is opened and closed.

Use eggs within three weeks of buying.

And if we’re being honest, it’s also just an all-around bad habit to fall into.

Empty eggshells have no business in your clean fridge.

Or, better yet, toss the shells in acompost binor use them in your garden.

The nutrients in eggshells make them aninexpensive fertilizerfor plants.

Your garden will thank you.

Eggshells are a good source of calcium carbonate, which encourages growth and lengthens the life of a plant.

You don’t want touse eggshells on plantsthat prefer acidic soil.

Starting Seeds

Because eggshells are so nutrient-rich for your garden, they make great vessels forstarting seeds.

Just double-check to give the shell a squeeze so the roots can grow.

The eggshell will decompose and help fertilize the plant.

2193(1):012009. doi: 10.1088/1742-6596/2193/1/012009