Fresh cream can be frozen, but it will likely change in texture and may separate upon thawing. It's best used in cooked dishes after freezing.
Freezing fresh cream causes the water content to expand, forming ice crystals. These ice crystals disrupt the fat molecules, leading to separation and a grainy texture when thawed. While the cream is still safe to eat, its consistency won't be the same as before freezing. It won't whip properly and is best suited for use in cooked dishes where the change in texture is less noticeable. To minimize separation, freeze the cream in small portions and thaw it slowly in the refrigerator. Stir it well after thawing to try and recombine the separated components. Higher fat content creams tend to freeze and thaw with slightly better results than lower fat content creams.
To help stabilize the cream before freezing, whisk in a small amount of sugar (about 1 tablespoon per cup of cream). The sugar can help to bind the water molecules and reduce separation upon thawing. Remember to adjust the sugar content in your recipe accordingly when using the thawed cream.