DIY toilet bombs

Spray one or two ice cube trays with cooking spray. Trays must be flexible, made of silicon or something similar. Do not use the hard plastic trays!!

Combine all the ingredients in a bowl. Mix well with hands, crushing all the little hard pieces you may find. It is very important that your hands are perfectly dry!! Or else the mixture will activate.

Transfer mixture in the ice cube trays, pressing strongly with fingers.

Let dry for several hours, pressing with fingers once in a while, till they feel very hard.

Unmold delicatly trying not to break any.

Keep in a sealed jar.

Use at least once a week by dropping one bomb in your toilet and letting it sit in for 20 minutes or so before brushing off your toilet.

Enjoy!