I guess my house IPA would be considered a "base" beer for IPAs......It is Eschatz's Two Hearted Ale clone recipe, but due to hop availability and shortages over the years of brewing it, the hop bill changes, while the grain stays the same.
Now are you really talking about "house" beers, beers we brew over and over with no changing, but have in regular rotation? I have quite a few that I brew repeatedly. They're pretty well known on here, having been brewed by many folks, my Belgian Blonde, Kentucky Common, and Vienna Lager are 3 beers, along with my IPA, that will get brewed several times a year...but I don't change the recipe.
TO me a "base" beer is like the IPA a grainbill that stays the same and other things are added to it. For example some folks use my Belgian blonde and a base beer, they add fruit to it, or honey to it, to make various different beers from the same base grain and hop bill.
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