What Marble Score Means (and Why We Serve MB5)

Steak menus have started speaking in codes. MB5, MB7, MB9. It looks like grading for insiders, and in a way it is, but the idea is simple, and it changes what arrives on your plate.

What marble score measures

Marble score, or MB, grades the amount of intramuscular fat in beef: the fine white web running through the red, not the fat around the edge. The scale used across Australia runs from MB1 (almost none) to MB9+ (fat and meat in nearly equal parts). It is assessed on the rib eye muscle, which is why rib eye is the cut most often labelled with it.

Higher score, more marbling; more marbling, more fat rendering into the meat as it cooks.

How it changes the steak

Fat carries flavour and moisture. A low-score steak is lean, firm and beefy; it needs careful cooking and is unforgiving when overdone. A high-score steak is soft, rich and buttery, almost melting, and very forgiving of heat. Between the two, texture and taste move together: each step up the scale is a little more tender, a little richer, a little less “steak” and a little more “fat”.

Why MB5

MB5 is the point most chefs and most guests land on. There is enough marbling for the steak to be juicy and tender without leaning on sauce, and the beef flavour is still the lead. You can eat a full 200g of MB5 and want more; a full 400g of MB9 is a project. That balance is why our rib eye is MB5 rather than a bigger number on the menu.

How we serve it

The Rib Eye MB5 at Maison Almaz is served as the cut alone, without sides, in two sizes: 200g at 670K and 400g at 1,200K. That is deliberate. A steak at this grade is the dish; sides and sauces are ordered around it, so the plate has one point. Our team will tell you the cooking we recommend for the size you choose, and medium-rare is where the marbling does its best work.

If you want the theatre, the Tomahawk 800g is the sharing steak; if you want lean and classic, the Beef Tenderloin with black pepper sauce. The steaks guide and tenderloin vs rib eye go deeper.

The one-line version

MB tells you how much fat is inside the meat. MB5 is rich enough to be memorable and lean enough to finish. Book a table and try it: reservations.