Had an interesting yeast class day at #blackwellbrewery with particularly the afternoon about wild yeast and sourbeer beeing very helpful. Great brewery concept they have! 👍🏾🍻#craftbeerlove #craftbeer #brewery #beerbrewery #wildale #wildales #localyeast #swisscraftbeer (hier: Burgdorf, Switzerland) https://www.instagram.com/p/Bq2hcAkgypf/?utm_source=ig_tumblr_share&igshid=1cpj6y85g10dq















