I'm going to be doing meatloaf tonight and one thing I've always noticed is that after it's done cooking, there is a lot of fat. The meatloaf is basically almost submerged in it. I use typical 80/20 (I've even done it with 90/10) but I get the same results. When I search for meatloaf recipes, I never see or hear anything about this issue, I don't even see it in the videos for meatloaf. Why is this happening? I use a standard glass loaf pan.