Okay, random question. Most older technical recipes I read say that after mixing the cubed meat, salt, cure you need to let it sit for 24-48 hours compressed in a tub stacked NO DEEPER THAN 6" before grinding & stuffing.
I'm assuming this has to do with osmotic pressure under the weight of the meat above? Or allowing air to circulate in between? Or ??
What is the reason for 6"? (Not that it matters as my meat lugs are only about 7" tall anyway and I rarely fill them to the top.)