Casleah Herwaldt

Casleah Herwaldt

Sommelier & Wine Blogger

Casleah Herwaldt recently became a Certified Sommelier through the Court of Master Sommeliers, Americas and was awarded the Walter Clore Scholarship for receiving the top score on her exam. She has also completed level 2 of the Wine and Spirit Education Trust (WSET) program, and plans to begin level 3 this year.

Her passion for wine extends to teaching others about wine in hopes that they too will fall in love with it. Cas presents in home wine tastings and educational classes as well as hosts multiple events in the LA area and Napa Valley area for wine enthusiasts, influencers and bloggers with a goal of bringing the wine community closer together.

Casleah runs an Instagram account called @bythestem where she makes wine recommendations, teaches her audience about wine, and shares her experiences at different wineries. Her enthusiasm for helping others learn about wine is shown through her tasting groups and her blog (

Although Casleah has much respect and love for the wine traditions and classic wines of the world, she also enjoys discovering new wines and new wine trends. To her, the best part about wine is how it brings people together for the sole purpose of enjoyment.