Fibonacci Brewing Co. will celebrate its fourth anniversary Saturday. (July 27)

“We are really excited for this birthday because everything has been finally coming together for our beer garden, Fib Farm, and Airbnb expansion," co-founder Betty Bollas said in a prepared statement. "We are keeping our fingers crossed that our goats, Fiddlehead and Honey, will be on site to celebrate with us.”

The Mount Healthy brewery will release several special beers, including Lower Gravity, a sour ale made with local blueberries and star fruit. The beer, made in collaboration with bottle shop Higher Gravity, is a celebration of the 50th anniversary of the Apollo 11 moon landing.

Other beers include:

• Origin of Species English Mild with berry muffin rooibos and pistachio pu-era tea from Churchill's Fine Teas

• Earth Daisy IIPA

• Compton Horapha Cream Ale with Thai basil from Running Creek Farm, honey from Carriage House Farm, and organic lemon

• Secale Double Dry Hopped Red Rye

• Imperial Tollhouse American Stout

• Imperial Tollhouse with organic peanut butter and Fibonacci house-made vanilla

The celebration runs from noon to midnight.