The recommended time to leave a towel after adding fabric softener and drying it once without it first time around is usually indicated on the fabric softener bottle or packaging. However, if there is no specific recommendation, a general rule of thumb is to wait until the fabric softener has been absorbed by the towel before drying it in the dryer.
Typically, this waiting period can range from a few minutes to about 5-10 minutes, but it can vary based on the specific fabric softener brand and type you are using. The idea behind waiting is to allow the fabric softener to penetrate the fibers of the towel properly, which helps make the towel softer and more comfortable to use.
Additionally, some fabric softeners are designed for use in the washing machine only and may not be suitable for use in the dryer. Always follow the instructions provided by the fabric softener manufacturer to ensure you are using the product correctly and to achieve the best results.
If you don't find any specific instructions on the fabric softener packaging or bottle, you can start with a short waiting period, such as 5 minutes, and adjust it based on your experience and preference. Remember that using too much fabric softener or not allowing enough time for absorption can leave residue on the towel or reduce the effectiveness of the product.