{"product_id":"foam-stopper-35-45mm","title":"Foam Stopper 35-45mm","description":"\u003cp\u003eBreathable foam stoppers will withstand boiling or autoclaving temperatures, making them ideal for use in preparing a yeast starter. The honeycomb structure of the foam stoppers will act is a filter for any airborne bacteria or wild yeast that might enter the flask. That important because a lot of air is sucked into the flask while it is cooling. You can also leave the stoppers on the flask instead of a fermentation lock. Some people use foam stoppers to replace fermentation locks in their carboys, too.\u003c\/p\u003e\u003cp\u003eThe small foam stoppers are 35-45mm wide and fit our 500 or 1000 ml borosilicate glass flasks, or a glass carboy.\u003c\/p\u003e","brand":"Northern Brewer","offers":[{"title":"Default Title","offer_id":35321074811032,"sku":"42949","price":2.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/5811\/6248\/products\/foam-stopper_2.jpg?v=1595086070","url":"https:\/\/supergoop532e-com.myshopify.com\/products\/foam-stopper-35-45mm","provider":"supergoop532e.com","version":"1.0","type":"link"}