What are the best techniques for rehydrating dry ale yeast before pitching it into the wort?

To rehydrate dry ale yeast before pitching it into the wort, the best technique is to follow the manufacturer's instructions carefully. Generally, you should use sterile water at the recommended temperature, sprinkle the yeast on the water, and let it sit for about 15-30 minutes before gently stirring. This helps the yeast cells rehydrate and become active before pitching into the wort for fermentation.