Hi Zola,
We recommend soaking your whisk in hot water before its first use to loosen the bristles! Then, for aftercare between making your drinks, we suggest soaking in warm water and leaving to air dry as you mentioned (if you have one, on a whisk holder which will help it retain its shape!)
If you have any further queries, please do reach out to us at info@birdandblendtea.com - we would love to help further!
Warmest brews,
Anna @ B&B