Your scale should have a tare function on it.
Dollar-store ziploc sandwich bags weigh .3-.4g, brand-name sandwich-sized ziploc bags generally weigh out at about .5g. If the bag is the sort with an actual plastic ZIPPER, it will be more, or if it's 'food storage' weight and the plastic is thicker.
stinkyattic Reviewed by stinkyattic on . Question about 1/8ths. People have been trying to pass off 1/8ths as 3.5g's.. and i've always thought it was 4g's. What is the real amount of g's that should go into an 1/8th? Rating: 5