Whey is a unit of weight for butter and cheese.[1][2]
Whey (Essex) is exactly equal to 236 pounds (107 kg).[1]
1 Whey (Essex) ≡ 59/56 Barrel[1]
1 Whey (Essex) ≡ 236 pounds[1]
1 Whey (Essex) ≡ 107.04779932 kg