Up to 50% Off Select Items at Great Fermentations As of this posting, Great Fermentations is discounting select items by up to 50% as part of a Halloween sale. up to 50% off at Great Fermentations Also: Brewer’s Reserve Recipes at GF Check sale or product page for current availability & pricing Also at Great Fermentations: Tapcooler Counter Pressure Bottle Filler! – Hands on Review More: Recent Great Deals