House Nest is stewed for 45 minutes mostly, and Cave Nest is stewed for 3 hours or more; Yellow Nest and Blood-Red Nest require longer time for stewing.

• 屋燕一般只炖四十五分钟即可,洞燕需炖三小时或以上;而黄燕或血黄燕也需炖较长时间。