You can reuse freezer bags and Ziploc bags as many times as you want too as long as you wash the freezer bags or Ziploc bags out between reuse.
I usually can get at least 100 uses out of one Ziploc bag before it wears out.
So as long as the Ziploc bag or freezer bag has not worn out you can reuse it until it does.
Reusing freezer bags or Ziploc bags helps keep them out of the landfill and saves you money.
There's no need to throw the Ziploc bag or freezer bag out after one use like some people do.
I save money by washing out the freezer bags and Ziploc bags and using them over and over until they wear out.