Moersleutel

Moersleutel (the Dutch word for "wrench") is a craft brewery from Alkmaar in the Netherlands, founded in 2016 by four brothers from the Zomerdijk family, alongside their parents Sjaak and Margreet. The brothers are trained engineers, and that background shapes how the brewery operates: they build and modify their own brewing equipment and approach recipe development with a systematic, experimental mindset. The self-description as "Beer Engineers" isn't just branding.

The main range is emphatically full-strength: heavy imperial stouts, double and triple IPAs, barrel-aged rarities, barley wines, and pastry stouts. This is a brewery that skews towards big, complex beers with high ABV and intense flavour profiles. Their core audience is the serious craft beer enthusiast who wants something challenging.

On the alcohol-free side, Moersleutel has applied their stout expertise to produce a 0.5% imperial stout. Brewing a convincing dark, roasted, chocolate-forward beer at sub-0.5% ABV is considerably harder than brewing a 0.5% pale ale, so the fact that they've tackled the style says something about the ambition. The Motor Oil is the most visible example, delivering the dark chocolate and espresso character of a standard imperial stout without the alcohol.

Available through specialist craft beer importers and retailers in the UK and across Europe.

The Collection

Motor Oil Stout