Perlite is a versatile and lightweight volcanic glass that expands when heated. It is commonly used in construction, horticulture, and insulation. In construction, perlite is used as an aggregate in lightweight concrete mixes, providing improved thermal properties and reducing the density of the material. In horticulture, perlite is mixed with soil or other growing mediums to enhance drainage and aeration, promoting healthier plant growth. Additionally, perlite is used as loose-fill insulation, creating a barrier that reduces heat transfer and improves energy efficiency in buildings. With its lightweight nature, insulating properties, and multiple applications, perlite is valued for its contribution to various industries.

With the introduction of cost-effective, easy-to-use, high-efficiency ceramic insulation, perlite is no longer necessary in wood oven construction.