With the increasing environmental pollution, it is crucial to consider eco-friendly options. The use of plastic bottles has led to a rise in pollution. Plastic bottles pose a severe threat to human health due to the release of microplastics. Made from the mineral rich soil of Gangetic plains, these terracotta bottles integrate seamlessly with the environment, making them highly desirable in the present scenario, ensuring safe drinking water. In the present time, most people rely on science. And that same science justifies the use of terracotta bottles. We all know that terracotta bottles can naturally keep water cool. Let’s discuss how it happens. Terracotta bottles have countless microscopic pores on their surface. Through these pores, water continuously evaporates and mixes with the environment as vapor. And for this evaporation, latent heat is absorbed from the water inside the bottle, thus keeping the water cool.