Wash your hands to keep germs out of the mix.
Clean the container you’ll use to mix the sanitizer and any bottles you’ll store it in. If the containers are heat-resistant, you can sterilize them in boiling water or in the dishwasher on high heat.
Pour the isopropyl alcohol into the clean container.
Mix in the hydrogen peroxide.
Add 4 teaspoons of glycerin.
Add 1 cup of sterile water and mix everything together.
If you divide the batch into smaller bottles, use clean tools to transfer it.
Wait 72 hours before using the sanitizer.
Note, if using 91% isopropyl alcohol, omit the water.
