Usually, I strain small batches of yogurt through a cheesecloth, but cleaning the cloth afterward is cumbersome. I'm thinking to buy an industrial stainless strainer (40cm / 16" diameter, 10cm / 4" tall) with a mesh, akin to a flour sieve.
What's the best mesh size that would work for full-fat yogurt? The factory has all the sizes from 12.5mm to 0.003mm (3µm).
Have you seen this piece and the Bouillon strainer mentioned in it? There is no information on mesh size unfortunately.
I am part of the Instant Pot (pressure cooker) community and we make a LOT of yogurt. I don't strain mine, but others swear by this strainer. I think it's plastic, though, so this won't help if you're trying to avoid it.
https://www.amazon.com/dp/B0091XNL0I/ref=cm_sw_r_cp_dp_T1_CS3DzbDN0MKPP
The comments by michael and jolenealaska on the answer to this similar question, suggest, if no pressure is applied, that a standard mesh strainer can be used.
Unfortunately I don't know what measurement the holes are but this implies that an extra fine mesh is not necessary.
