De Moersleutel Rock is a sour ale from Alkmaar's Brouwerij De Moersleutel, crafted with the precision and boldness the four brothers are known for. This is no trend-chasing beer, but a deliberate design: a light, tart ale with snap and character.

At 5.5% ABV, Rock offers an accessible entry into De Moersleutel's sour portfolio. The brewery is renowned for fearless innovation and complex flavours, and this sour follows that principle: clean, sharp, and with a clear identity.