But compared to bleach, calcium hypochlorite has several unique advantages.

Calcium hypochlorite is a powder so it has a much longer shelf life compared to bleach. It also takes up less space in your stockpile and is much cheaper.

Before SHTF, stock up on calcium hypochlorite, a versatile cleaning ingredient that's a great alternative to bleach. (h/t to PrepSchoolDaily.Blogspot.com)

A prepper's guide to using calcium hypochlorite
Use calcium hypochlorite powder to make a five percent stock solution.

When making the cleaning solution, always add the calcium hypochlorite powder to the water. Never add the water to the calcium hypochlorite.

Check the guide below if you want to use calcium hypochlorite to clean different surfaces.

Five percent calcium hypochlorite stock solution:

1 1/2 Cups water + one teaspoon calcium hypochlorite powder
1 Quart water + 2 3/4 teaspoons calcium hypochlorite powder
2 Quarts water + 5 1/2 teaspoons calcium hypochlorite powder
1 Gallon water + 10 3/4 teaspoons calcium hypochlorite powder
This is your bleach equivalent. Use the stock solution just like bleach for laundry or cleaning.

Here are more options if you want to mix some up for a particular usage:

Sanitizing solution for non-porous food contact surfaces, like glass or metal

Add 1 1/2 teaspoons of calcium hypochlorite to five gallons of water and mix well. The stock solution must maintain contact with the surface you need to clean for at least two minutes to properly sanitize.