Precautions to be taken 
Always boil the shells before using them to avoid any risk of bacterial contamination (such as salmonella). 
- Pauline, 48,
an amateur gardener: “Since I watered my plants with boiled shellfish water, they have been more vigorous and healthier. ” - Jean-Marc, 60,
chicken farmer: “My hens are laying eggs with stronger shells since I gave them crushed shells. ” - Jean-Marc, 60,
a passionate gardener: “My fragile surfaces have never been so clean without spending a penny on chemicals. ”
A simple tip for maximum impact 
Cooking egg shells is a simple and effective procedure. Whether it’s enriching your garden
, cleaning your home
, or improving 
the health of your pets, this tip saves money and reduces waste. 
