Checking the temperature by testing the tool on a piece of white paper towel is performed for:

The practice of checking the temperature by testing the tool on a piece of white paper towel is particularly relevant for stove-heated thermal irons and combs. This method allows the stylist to assess the temperature accurately and ensure it's appropriate for safe and effective styling.

When using stove-heated tools, the temperature can fluctuate and may not have a built-in temperature indicator like some electric tools. By applying the heated tool to a piece of white paper towel, the stylist can observe whether the paper burns or turns brown. This gives a visible indication of the tool's heat level. It ensures that the tool is neither too hot, which could damage the hair, nor too cool, which could lead to ineffective styling results.

Maintaining optimal temperature is crucial in hairstyling to achieve the desired results while minimizing damage to the hair strands. Hence, using this testing method with stove-heated thermal irons and combs helps ensure the safety and efficacy of the styling process.