What is crucial to ensure before using a new cleaning product?

Conducting a patch test in an inconspicuous area is essential before using a new cleaning product because it helps assess how the fabric will react to the cleaner. Different fabrics can have varying sensitivities to chemicals, and a patch test allows you to check for any adverse reactions, such as discoloration, fading, or damage, without risking the visible parts of the upholstery or fabric. This step is crucial in preventing permanent harm and ensuring the product is suitable for the specific material being cleaned.

While reading the product label thoroughly is important for understanding the product's intended use and chemical composition, the patch test directly addresses the safety and compatibility with the fabric. Mixing cleaners might produce unintended chemical reactions and is generally discouraged without knowing the compatibility of the products involved. Storing the product at room temperature is more about the longevity and effectiveness of the cleaner but does not directly relate to its immediate effect on fabrics when applied. Therefore, the patch test takes precedence as a critical safety step.