{"product_id":"foam-stopper-46-50mm","title":"Foam Stopper (46-50mm)","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\n\u003cp\u003eThe large foam stoppers are 46-50 mm wide and fit our \u003ca href=\"\/products\/erlenmeyer-flask-2000ml\" title=\"2000 ml Erlenmeyer Flask\"\u003e2000 ml borosilicate glass flasks\u003c\/a\u003e\u003ca href=\"\/products\/2000-ml-erlenmeyer-flask\" title=\"2000 ml Erlenmeyer Flask\"\u003e.\u003c\/a\u003e\u003c\/p\u003e\r\n\u003c!-- PROP65-WARNING START v1 --\u003e \u003ch4\u003eCalifornia Proposition 65\u003c\/h4\u003e\r\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" title=\"Proposition 65\" href=\"\/pages\/about-california-proposition-65\" target=\"_blank\"\u003e⚠ Proposition 65 Warning:\u003c\/a\u003e This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.\u003c\/p\u003e\r\n\u003c!-- PROP65-WARNING END v1 --\u003e","brand":"Northern Brewer","offers":[{"title":"Default Title","offer_id":48200921940227,"sku":"42950","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0618\/5005\/9011\/files\/34-0001_2ad7c415-2b57-4f5d-b50d-d38fbdfeeb40.jpg?v=1779398486","url":"https:\/\/austinhomebrew.com\/products\/foam-stopper-46-50mm","provider":"Austin Homebrew Supply","version":"1.0","type":"link"}