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.
You only keep frozen meat in the freezer for at least 6 months any longer than that and it will end up getting freezer burned. frozen turkey will be good for 3 months, if frozen in water 6 months. After 3 months it will start to dry out unless frozen in water. 2 people found this useful. Edit.