
HARIO is a long-established Japanese brand best known for heatproof glass and products for coffee, tea, and beverage preparation. On its official website, the company states that it has been operating since 1921 and has focused on the design, production, and sale of heatproof glass from the beginning. HARIO also states that it is the only manufacturer in Japan with its own heatproof glass factory. The brand originally produced laboratory glassware and later expanded into coffee and tea equipment as well as a wider range of kitchen products.