London Broil marinades

[SecondHandSmoker]

I guess KraftHeinz stopped producing Lea & Perrins Orginal Marinde.
It was always a good non soy sauce based marinade for top round too.

 

[clifish]

I am surprised more people don't use fresh pineapple or mango juice (has to be fresh) like is in @chilerelleno marinade? I have used it and it will break down tough cuts incredibly well....to the point if left too long it can turn to mush.

 

[chilerelleno]

I am surprised more people don't use fresh pineapple or mango juice (has to be fresh) like is in @chilerelleno marinade? I have used it and it will break down tough cuts incredibly well....to the point if left too long it can turn to mush.

That's right the juice needs to be fresh, as in unpasteurized. Pasteurization neutralizes the 'Bromelain' enzyme that works as the meat tenderizer by dissolving collagen fibers.
The acidity of such juices can like @clifish said, turn meat to mush.