Over 14,000 farms are registered in Spain, with laying poultry groups numbering 1,000 farms, with 40,000,000 laying hens. A hen produces one egg per day, which amounts to 40,000,000 eggs per day. Eggs usually weigh 60 grams, including the shell which weighs about 6 grams, or 10%. Accordingly, 240,000,000 grams of the shell is generated daily for the full egg (eggshell + egg product), an extremely valuable by-product that should be managed efficiently.

In order to preserve the planet and preserve our quality of life, eggshells need to be used for sustainability. Shells can be used in a number of ways. Biodegradable packaging, insulation, and even building materials can be made from them. Therefore, finding efficient and sustainable solutions is crucial. Additionally, we could try to find an effective solution for the health sector, contributing to the health of plenty of people.