I'm working on some recipes with one of my groups, and we've stumbled on a problem. The ingredients list contains the following:

600 ea Emu fillets
3 ea cloves of garlic
750 ea (3 cups) good beef stock
80 ea (1/3 cup) vinegar
150 ea riberries

as well as some other ingredients which are listed in the normal way (1 tb coriander, 2 ts cardamom pods).

About that ea : I'd always understood this meant "each", but I wonder if it's being used like this in this recipe. After all, what can it mean to say "80 each vinegar"? Or "150 each riberries"?

What would y'all understand here?
Thanks!