Re: Newbie sausage questions
Do NOT use beef fat.
Use pork fat or better yet pork butt or pork shoulder. The butt and shoulder is a bit more money but it makes fantastic sausage and burger.
I don't really figure out the fat percentage but I would guess for burger I put in approx. 25 percent pork shoulder and a bit higher fat content for sausage. I kind of add the pork until I get the meat looking how I like it. It's important to not skimp on the pork because you need the fat for the sausage to cook properly and for the juices. Oh the juices.
Do yourself a favour and buy a book on sausage making. Start with fresh sausage like breakfast, italian, choriso, brats and the like.
I have found I like to make longer sausages than you can usually buy so when BBQin' them up I get a bit sticking out both ends of the bun. MMMmmm.
Have fun. It's a great hobby to get into.
Rejuvenation: Sitting in the slash in sub-zero temperatures waiting for first light and hearing antlers clashing together. Oh man, life is good!