Any day they're open is fine. They don't really do a "tour", but they do have tastings and sell beer to go.
Idle tyme I think it is called across the street from the alchemist. The hide wide selection. In Burlington magic hat was good and switchback had good beer but didn't care for the staff. Google breweries in Burlington vt. Brings up a map. There are a few more in stowe area. Great place for beer. Check out stowe cider also but they only open on Friday Saturday Sunday
During the week is the quietest time. You may want to call ahead about a "tour" as I dont believe they offer them on the spot. You can see their production facility from the tasting room anyway.
Any day they are open. It's a really nice spot, great beer and everyone is nice. While you are in Vermont please make sure to also try Upper Pass beer. A fantastic new brewery.
Tour?
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