Brave AI Search (NOT me) gives this: "A pot roast can be prepared using Malta Goya as a flavorful ingredient, particularly in recipes inspired by Latin American and Caribbean cuisine. While traditional German pot roasts use malt beer, Malta Goya serves as a non-alcoholic alternative with a rich, malty flavor that complements the meat. The beverage, made from malted barley, corn syrup, hops, and other ingredients, imparts a sweet and slightly bitter taste with notes of caramel, toast, and molasses, often likened to a non-alcoholic stout."
Never heard of the stuff - looked at a couple of online comments which were mixed & I think I will stick with coffee; however it was an interesting suggestion :-)
I think adding beer would be fine - the recipe only calls for 2/3 cup liquid, though. You’ll be adding liquid via the onions you saute in the bottom of the Dutch Oven first. Just FYI.
I add beer instead of water when I make Chili. Love? Schmuv! Beer and Bacon are the ‘secret’ ingredients. ;)