how long did they carb for? carbing can be uneven at times...some seem more carbonated than others. also, if you added the sugar directly to the bottles, it can be uneven that way as well as each bottle wont get the exact same amount of sugar.
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DINOSAUR BASEMENT BREWING
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Fermenting: Nothing at the moment
Carbing: World Series Tripel, Pale/Citra SMaSH
Conditioning:
Drinking: Dilophosaurus Doppelbock, Allosaurus Amarillo Pale Ale, Sinraptor Sorachi Ace AIPA, Caseosaurus Cascade APA (AG), Helioceratops Hefe, Witty Monk Modified, ESB (AG), SWMBO Nut Brown Ale
Up Next: Vienna/Simcoe SMaSH, DNR Clone
R.I.P: Stegosaurus Cream Ale (Awesome), T. Rex Red Ale (Great after conditioning)