I have to admit I found this is a guidebook covering the best beer gardens of the region. It was (rather) conveniently placed, and it does not offer beers from the big players in Münich, but rather the smaller Erharting brewery, a brewery owned by the same family from the start in 1872.
Leiberheim is located in the Southeastern suburb Neubiberg, I advise you to print a map before you start your expedition. The less techically challenged can probably find their way using their mobile phone.
The sprawling Biergarten is in the middle of a residential area. No table service, at least not in the main garden, you place your order and pay at the counter.
One peculiarity of the Bavarian beer garden law (yes, there is one, but it is far younger than the Reinheitwsgebot, is that people are permitted to bring their own food in the beer gardens. What you typically see is one area with tablecloths and cutlery, one with just plain wooden benches and tables. This means that families bring their own baskets, with the ladies arranging impressive displays of Tupperware boxes of homemade food.
I go for two small glasses, wanting to sample two beers instead of just one Mass. I felt like a sissy, obviously, this is a place where the full liter glass is the custom.
Ther Erharting Helles is nice and crisp. I’d call it a pilsener, but don’t tell anyone, they might have to take out the hops. Liquid bread, to use a cliché.
The Erharting Dunkelweisse is sweet, malty, full bodied and earthy. But malty beers can be boring, the hoppiness would have been as welcome in this beer.
Ten or fifteen minutes to the S-bahn station. Low Dirndl factor.
If there were other foreigners around, they were not noticeable. No signs or menus in English or Japanese. Well worth the walk and the time. Bring along a book and spend the afternoon.