Perfect for mushroom growing and liquid culture production, these silicone and rubber bottle stoppers are a great alternative to traditional methods. They come with injection ports that allow you to add cultures directly into the jar lid or bottle, eliminating the need to remove the stopper. The openings are spacious enough to accommodate common cultures, and the self-healing feature ensures a safe and seamless injection process. These durable stoppers are compatible with a variety of mason jars and bottles, making them a versatile and convenient solution for your gardening and culinary needs.
  Packaged neatly in eco-friendly packaging, these mushroom culture lid stoppers are made with high-quality silicone and rubber, ensuring durability and heat resistance. The 3/4-inch wide top opening and 5/16-inch height design make it easy to insert the injection ports without tools. Perfect for those who want to keep their cultures fresh and convenient without sacrificing environmental sustainability. These reusable stoppers are ideal for both home and commercial use, providing a cost-effective and sustainable solution for mushroom growing and liquid culture production.