[Premium Quality] This sourdough starter jar kit comes with 1 × Sourdough Jar, 1 × Wood Lid, 2 × Rubber Band, 1 × Silicone Spatula, 1 × Thermometer Strip , 2 × Label Sheet, 1 × Pen and 2 × Cloth Cover and 1 × Spoon. Made of premium materials such as glass, wood, cotton linen, silicone, paper, etc. Reusable and durable. [Practical Thermometer Strip] This sourdough starter jar kit comes with sufficient sourdough fermenting accessories. The included thermometer strip can be used to read the temperature of the fermenting dough inside the yeast storage jar at any time. [Wide Mouth and Easy to Use] This sourdough starter jar features wide mouth design allows to easily add water or flour and effortless to clean that is reusable. And the package comes with a silicone spatula, which can be used to stir the stored food inside the jar and remove the finished fermented fermentation when needed. [2 Storage Ways] When need for refrigerator storage for a week or more, use the wood lid for better sealing and keep food from deteriorating. Suitable for storing canned food, dried fruits, mixed grains, caviar, pickles keeping fresh. When need for fermentation use, it needs a breathable cloth cover, adding a strong elastic band that allows the air to flow in and out smoothly. Suitable for a natural yeast fermentation. [Use Guidelines] Put the sourdough glass jar into the pot with cold water, boiling it for 5 minutes, turn off and cool the glass jar before removing and using. (Do not put the glass jar into boiled water) Note: The glass jar is heat resistant, but not for sudden hot and cold condition, it needs to preheat the jar first, increase the temperature gradually.) The sourdough glass jar kit is practical gift for baking beginner and yeast lovers.