How to Use Your Whipped Cream Dispenser
Your whipped cream dispenser will produce whipped cream that is 3-4 times the volume of the original liquid cream. Therefore the half-pint whipped cream dispenser will produce 1.5-2 pints of whipped cream; the pint whipped cream dispenser will produce 3-4 pints of whipped cream, and the quart whipped cream dispenser will produce 3-4 quarts of whipped cream.
Open the top of the whipped cream dispenser and fill it most of the way with cream. You should leave an inch or more of headroom. It is important to use HEAVY cream. While light craem and whipping cream can be whipped into peaks via mechanical means, to make whipped cream from a gas charger requires that the fat content of the cream be at least 33%. So use heavy cream.
Put the top of the whipped cream dispenser back on securely. To make whipped cream, you will need to charge the whipped cream dispenser using nitrous oxide (N2O) capsules, a.k.a "whipped cream chargers." The half-pint and pint whipped cream dispensers will each take a single whipped cream charger to charge them, and the quart whipped cream dispensers will need two whipped cream chargers to charge them.
Charging Your Whipped Cream Dispenser
Unscrew the charging cylinder from the top of your whipped cream dispenser. Then put a whipped cream charger into the charging cylinder. Now, turn the whipped cream dispenser upside down, and while holding it upside down, screw the charging cylinder back onto the whipped cream dispenser.
The charging valve will puncture the whipped cream charger, and nitrous oxide will be injected into your whipped cream dispenser. You will notice that initially, this will make the whipped cream dispenser very cold. You should still be holding the whipped cream dispenser upside down.
At this point, the contents of your whipped cream dispenser will be under pressure. While you can unscrew the charging cylinder and dispose of the whipped cream charger (the charging valve will remain closed, and will allow you to remove the spent whipped cream charger), DO NOT OPEN the whipped cream dispenser after this. Not only will you release the charge, but you will make quite a mess in the process.
If your whipped cream dispenser is a half-pint or a pint, the unit is now fully charged and almost ready for use (there is a final step - see below). If you have a quart whipped cream dispenser, you will need to repeat the charging process with a second cartridge. To preserve the life of your whipped cream dispenser, allow a minute or so after the first charging for the unit to return to a less frigid temperature prior to charging with the second whipped cream charger. After applying the second whipped cream charger, your quart whipped cream dispenser is almost ready for use.
Now that your whipped cream dispenser is charged, while still holding it upside down, shake your whipped cream dispenser in an up-and-down motion 4-5 times, but no more than this. You are now ready to make whipped cream.
Dispensing Whipped Cream
To dispense whipped cream, turn the whipped cream dispenser upside down so that the dispensing valve is pointed downwards, and simply squeeze on the dispensing handle of your whipped cream dispenser. A gentle squeeze should suffice. Whipped cream will emerge from the dispensing spout of your whipped cream dispenser. If the dispensing is difficult to start or to control, try lubricating the dispensing valve and dispensing spout with a little bit of vegetable oil. Note that the very first discharge could be slightly liquid.
Storing Your Whipped Cream Dispenser
Between uses, unscrew and clean the dispensing valve, and then simply store your whipped cream dispenser in the refrigerator to keep the cream inside of it cold. Cream will stay fresh for 2-3 weeks. When you buy the cream, look for the expiration date on the container. The cream should remain fresh until this date when stored inside your whipped cream dispenser if it is kept cold. And your whipped cream dispenser will hold its charge for up to 3 weeks.
Sweetening and Flavoring Your Whipped Cream
You can make sweetened and/or flavored whipped cream by mixing syrup into the cream. This must be done prior to putting the cream under pressure, i.e., before charging your whipped cream dispenser with whipped cream chargers. Simply blend the syrup of your choice - chocolate, vanilla, strawberry, hazelnut, etc., into the cream prior to filling your whipped cream dispenser. Or pour the syrup into your whipped cream dispenser with the cream, and shake it well prior to charging.
Your whipped cream dispenser will work exactly as before, except that the whipped cream will be chocolate whipped cream, or vanilla whipped cream, or whatever flavor that you mixed into the cream.