Guaja Brewery is a personal craft brewing project based in Madrid, Spain, founded by Jose Antonio Quero — a software engineer by trade and a familiar face in the Madrid craft beer scene. What started as a personal passion project has grown into a recognizable name among Spanish craft beer enthusiasts, with a clear focus on hop-forward brewing. Guaja Brewery's portfolio leans heavily into modern hop-driven styles, with India Pale Ales and Double IPAs at the heart of their lineup. Beers like "Billie's Hop Quest," a 6.2% IPA, showcase their affinity for expressive hop character, while "Toad Slime," an 8.3% DDH Double IPA brewed in collaboration with Cervezas Speranto, highlights their interest in hazy, intensely hopped recipes using techniques like double dry-hopping. Collaborations appear to be an important part of Guaja's identity, connecting with other craft breweries and participating in Madrid's growing independent beer culture. Their presence at local tap events and on platforms like Untappd reflects an engaged community following among craft beer lovers in Spain.