How do you get into Hidden Key Brewing Co.?
We have not confirmed it. Hidden Key Brewing Co. is in the directory because it described as hidden, and that is the whole of what we can stand behind about its door.
The drinks at Hidden Key Brewing Co.
How the venue describes itself: “For thousands of years, beer has been the “Hidden Key” helping us let loose, bond with friends, and celebrate life’s victories. Our mission is to brew the highest quality beer & provide a unique space to enjoy it with friends.” (from its own website, retrieved 9 October 2026)
The current drinks list is published on the venue’s own site — see the menu.
Beyond what the venue publishes we have not verified a list, so what follows is the period rather than the bar: Mary Pickford, El Presidente, and Hotel Nacional Special are all drinks of this era, and each links to its origin and its build.
Where Hidden Key Brewing Co. sits
Hidden Key Brewing Co. is in Greencastle, Pennsylvania, in Franklin County, in the Mid-Atlantic of the United States.
This is currently the only verified hidden bar our directory lists in Greencastle. If you know another, tell us.
Pennsylvania holds 71 listed venues in this directory. See them all on our Pennsylvania speakeasy guide.
Prohibition in Pennsylvania
Pennsylvania came under national prohibition on 17 January 1920, when the Eighteenth Amendment took effect and the Volstead Act defined an intoxicating beverage as anything above one half of one per cent alcohol — a threshold strict enough to close breweries that had expected to survive.
More on the period in our history of Prohibition in Pennsylvania.
Planning a visit
Hours published by the venue:
- Friday: 4pm-10pm
- Saturday: 11am-10pm
- Sunday: 10:30am-3:30pm
- Thursday: 4pm-10pm
- Wednesday: 4pm-10pm
Hours as published on the venue’s own site, retrieved 9 October 2026.
You can reach Hidden Key Brewing Co. by phone on (717) 895-3816, through its own website, and on Facebook, Instagram, and X.
The address is 101 W Baltimore St, Greencastle, PA 17225. Open in Google Maps.
What we have confirmed
For Hidden Key Brewing Co. we hold street address, telephone number, official website, social accounts, opening hours, and a published drinks list. We do not yet hold an online booking link or a listed-building record.
It is in the directory because its own name calls it hidden.
Overture Maps carries this venue; OpenStreetMap has no matching record.
The source data classifies the premises as a brewery.