The principle of hedging is to hedge risks. If you want to hedge risks, you must open positions in different directions in the two markets and short 10 ton (1 hand) in the futures market, and the corresponding spot is 10 ton. When the market began to decline, the empty orders in the futures market began to make profits, which just supplemented the losses caused by the decline in the spot market, realized risk hedging and played a hedging role.

If you only use spot or futures, you can't hedge, because the spot market can't make a profit by shorting, and the futures market can't deliver without spot, so you can't avoid naughty hedging.