This is how we're screening the soil for now. This has emerged as the main bottleneck in the total process so we will hopefully be able to improve on how it's done as time goes on. We're using a pretty fine screen (about 1/4"). Our first day of testing involved the use of different screen sizes to see which made the best block and the smaller size seemed to be the best. It's more work but the quality of block is much better. We tried screening twice, first with a large screen then with the smaller one and decided that the extra effort wasn't worth it. So, we now are screening once with the small size.
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