If you only need to store it for a couple of days don't wash the leek, instead lightly wrap it in plastic wrap and store in the crisper drawer.
When ready let it sit in a solution. The loose dirt will fall off.
For the solution: Add 1 part vinegar
3 parts water
Slice the dark green leaves and the root off. It may be especially dirty from the farmers market or if they've just been picked.
Wipe the dirt away
You may want to let it soak again in a clean solution.
You can also use a veggie brush to scrub the dirt off. This one is specifically for asparagus but I use it for everything.
To make cleaning easier slice the leek in half. This will also allow you to see the caked in dirt.
You could even go as far as cleaning the leeks 2 layers at a time. I had to 👅
Now slice the leek for easy consumption.
I've been using the kitchenaid ceramic knife. Using ceramic will help postpone oxidation (more specific to storing).
If you have extra leeks you may want to store them in the freezer. However, they'll lose some of their texture and flavor the longer their stored. Remember to mark your ziplock bags.
The creator of this guide has not included ingredients