Hydrogen gas is very flammable and yields explosive mixtures with air and oxygen. The explosion of the mixture of hydrogen and oxygen is quite loud. Tests should be made prior to the demonstration to adjust the total volume in the balloons so that the sound of the explosion is tolerable in the room.
How long does cooked beef stew last in the freezer? Properly stored, it will maintain best quality for about 4 to 6 months, but will remain safe beyond that time. The freezer time shown is for best quality only - cooked beef stew that has been kept constantly frozen at 0â will keep safe indefinitely.
Best Answer: If they were frozen solid when you took them out, they're probably still good, but I wouldn't keep them any longer. Either cook them today or throw them out. I'd probably cook them well-done if you decide to use them. Normally, I only keep thawed meat three days. If they still have a good color and no bad smell, they're probably still good. i am -very- adament about how long i keep my meats after they have been frozen, as i worked at a restaurant and i saw some bad events occur due to carelessness.