We relocated from California to Costa Rica last December. I’m in the process of setting up my studio here and have transported all my equipment. At the moment, everything remains packed in boxes in the garage as we’re building the studio from scratch. Given the heat in Costa Rica and in the garage, I’m uncertain about the condition of my glazes and underglazes. How can I verify their usability? Should I consider them a loss due to the heat or try a test run? If I opt for the latter, what should I be looking out for?

Any advice would be greatly appreciated; this is new territory for me.