You can easily make 5 medium-sized onsen tamago (soft-boiled eggs) just by pouring hot water. - Product Name: Onsen Tamago Maker - Color: Yellow - Cooking Time Chart: Cooking times for making medium-sized onsen tamago are listed. I bought this for my family, but I never used it and have been storing it. It has been stored, so the box has some scratches, but the contents are new (see photos 8 and 9). Downsizing! I hope someone who loves onsen tamago will buy it.