How long to keep zucchini pineapple cake in refrigerator?

At room temperature: Store cake on the counter in an airtight container for up to 2 days; avoid refrigeration at room temperature, as fresh zucchini does not hold up well past two days.

In the refrigerator: Store your pineapple zucchini bread covered or in an airtight container at room temperature for 4 to 5 days and in the fridge for up to 7 days.

In the freezer: The bread, well-wrapped (double is better because of frosting) will maintain excellent quality in the freezer for about 5-6 months if well sealed. Thaw and serve.