All mince is packed fresh on a tray under gladwrap. Product can be frozen. Topside mince is leaner, regular mince has more fat (grass fed mince is a lot leaner than feedlot mince anyway). Ironman/Ironwoman mince are exactly the same, they contain 1/2 liver, 1/2 mince for people needing more protein and more iron. Half ironwoman contains 25% liver and 75% mince. Still the same great benefits of the liver, but not so much of it. Heart mince is 1/2 heart, 1/2 mince. All mince is 100% grass fed with no antiobiotics or growth promotants. Our trays are made from 100% recycled water bottles and are fully recyclable.