Acid breaks down tough muscle fibers. It’s like a tiny chemical scissors. A splash of lemon juice, vinegar, or even yogurt can transform a shoe-leather cut into something you’d eat at a fancy restaurant. But watch the clock.
Don’t leave it in acid for more than 2–4 hours. Any longer, and your steak turns into mushy, sad meat. That’s not tender—that’s unappetizing pâté. Aim for a marinade with oil, acid, garlic, and herbs. The oil carries flavor into the meat.
How to Cook Tender Sirloin Steak: No-Fail Guide
Quirky fact: Pineapple and papaya contain enzymes that literally digest meat. It’s called bromelain. It’s so strong that in some cultures, they use pineapple juice to tenderize meat for 24 hours—but only for cut that will be ground up. For a steak? 30 minutes max. Otherwise, it turns to goo.
