Start by mixing one part baking soda with one part white vinegar in a bowl. The reaction between the two products will create an effervescent foam.
Add 10-20 drops of essential oils to the mixture. Essential oils will not only give your sanitary blocks a pleasant scent, but they will also have antibacterial and anti-limescale properties.
Stir the mixture well until you get a paste-like consistency. If the mixture is too dry, add a little more vinegar. If it’s too runny, add a little more baking soda.
Once you have the desired consistency, pour the mixture into the ice cube molds. Make sure you pack the mixture well into the molds.
Let the sanitary blocks dry for at least 24 hours or until they are completely solid.
Once dry, remove the sanitary blocks from the molds and store them in an airtight container until used.
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