Water-Straining Yogurt Maker Large - Yogurt, Water Strainer, Dressing, Convenient, Whey, Greek Yogurt, ST-3002, Water-Straining Yogurt, Kitchen, Easy, Cooking Utensil, Diet, Homemade, Sweets, Cooking, Health, Idea, Hardness Adjustment, Made in Japan I have used it 2-3 times since I purchased it. There is some white staining on the water-straining mesh part. Please check the photos for confirmation. This is a large-capacity size that allows you to easily make water-strained yogurt by simply putting in two whole packs of commercially available yogurt. The transparent container with a scale makes it easy to see how well the whey (whey) is draining, and it's easy to adjust the hardness of the yogurt. It will be wrapped in bubble wrap and sent in a bag for simple shipping, so please be aware of this.