Yield 325 - 400 gr m2. Hi, i dont have microwave foil so instead i poked a couple of holes on the cling film. But the choice is yours.  Source: <a href=https://mscoastchamber.com/list/member/wendy-tromp-9740>https://mscoastchamber.com/list/member/wendy-tromp-9740</a>