Ximango Yerba Mate - 35.27 Oz - Erva-Mate para Chimarrão Ximango - 1kg

I thought it was packed vaccum sealed, but the one I received wasn't. Is it right?

can you use this in a tea infuser?

Is the product vacuum sealed?

What kind of straw works for this? I have a straw that works fine with other brands but not this one. I bought 2 lbs and can't drink without clogging.