For some reason the Lactose-free milk available here is UHT pasteurized. Tastes OK to me while regular UHT milk tastes poor to me.
All factory milk is based on milk powder and water ... It's higher than 3.5% as it comes off the farm (contains cream). They put some through a dryer to get powdered milk, and dilute the rest with water, then bring the Milk Fat up to the target with powdered milk.
So ... Farm (up to 30+%) -- 3% (for whole milk, adjust as required) --3.25% ( store 3.25)
It should be obvious that a gallon of 2% has more water than whole milk.
All factory milk is based on milk powder and water ... It's higher than 3.5% as it comes off the farm (contains cream). They put some through a dryer to get powdered milk, and dilute the rest with water, then bring the Milk Fat up to the target with powdered milk.
So ... Farm (up to 30+%) -- 3% (for whole milk, adjust as required) --3.25% ( store 3.25)
It should be obvious that a gallon of 2% has more water than whole milk.