A month ago I bout a shoulder of pork from Tescos and put it in the slow cooker with Westerns organic cider, onion, herbs and veg stock. Cooked it on low for 6 hours and it was delicious. The meat wasn't fatty at all(once the top layer was cut off) and sort of flaked apart. It was quite solid. I blended the cooking juices and added flour and it made a wonderful cidery sauce.
The other day I bought a shoulder of pork from ladls and cooked it in the same way but for an hour less (wasn't frozen though and other cut was part frozen). It was so fatty. Fat was running through the meat. It really put me off and I couldn't eat it. Was it the fact that it was from Lidls or did I need to cook it for longer? Was it just bad luck?