It wouldnt let me edit after 3 min, so I just lost a bunch of tweaks 😞
Looked at their goose stick recipe. I think that is a typo, should read 3/4 quart, not gallons. Most recipes use around 10% water, so for 12.5 lbs meat thats 1.25 lbs water, or 2.3 cups.
In their pepperoni stick recipe below, from their meatgistics video page, you can see how they give the meat amount they are using, then the UNADJUSTED WATER AMOUNT. Only later in text, easy to miss, do they adjust the water! This is a terrible way to list a recipe, all ingredients listed already adjusted per calculation except one, then telling you to adjust that one later:
MEAT BLOCK
4 lb of Beef Trim
6 lb of Pork Butt
ADDITIVES
1 Bag Pepperoni Unit
2 Quarts of Ice Cold Water <--------!!!
Fibrous Casings
Or
Hog Casings
Or
Collagen Casings
Optional Additives:
Carrot Fiber
Encapsulated Citric Acid
PROCESS
Since we are making 10 lb of pepperoni we will need to divide out the seasoning, cures water and additives we are going to us. Since this bag of seasoning is enough for 25 lb of meat and we are making 10 lb we need to divide the weight of the seasoning by 2.5, make sure you do the same for the additives as well. That gives us .562 of a lb of seasoning, 1.6 oz of carrot fiber, 1.6 oz of Encapsulated Citric Acid and 0.8 of a quart of water. <-------!!!