When vacuum-sealed meat is still in its packaging, you can’t tell if it’s bad unless it has developed an unpleasant odor. Check the meat with a plastic or a q-tip to check for discoloration, sliminess, or a bad smell. If you find any of these characteristics, throw them away and try again. If the smell persists, you might want to consider throwing the meat away. If the meat is still within its use-by date, it’s still best to get a refund.
One of the most important things you can check when purchasing vacuum-packed meat is its color.