220μ –This is the common size for the workbag, but Dropbags, among others, makes a 230μ and some larger sizes, up to 400u (suited for different plant material, just saying).
209μ
200μ
190μ
185μ
180μ
170μ
COOKING HASH BAGS (The following size bags are generally considered only good for cooking, adulterant for good hash for sale, or mixed with 25μ and given away to friends.)
160μ
150μ
135μ –I haven’t seen this size used, but I would think that depending on strain/sativa dominance this could fall into either this or the next category.
TRICHOME/HASHISH COLLECTION BAGS (Yum.)
120μ –Generally considered the start of what you want. Trichomes form Sativas will collect more on the smaller size bags, whereas with indicas you will see more quality stuff at this layer.
110μ
100μ
90μ
75μ
73μ —
72μ
70μ
55μ
50μ
49μ
45μ
THE FINAL BAG (Anything that drains below the final bag is not worth collecting, so the size of the final filtering screen is important. This final bag is a low yielder and is most often considered lower-quality than the above micron sizes. Higher-quality when using a sativa as starting material.)
38μ –This seems like it would be a great alternative to the more common 25μ size if the quality of the 25μ was substandard. From Mila’s Ice-O-Lator bags.
35μ
33μ
25μ –A common size bag most often used as the final bag.
20μ –Sounds tiny to me, but I haven’t done runs with small-gland pure sativa material before.
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