The best place to store grapes is in the refrigerator.

Grapes can last longer in the refrigerator than other berries, but it's still a good idea to take steps to keep them fresh. For proper storage, it's important to consider two things: humidity, condensation, and air circulation.

Grapes keep best in an environment with a temperature between 30 and 32 degrees Fahrenheit and a relative humidity of 90% to 95%. Therefore, the best place to store them is in the crisper drawer of the refrigerator, using the high humidity setting. If you don't have this type of drawer, you can place the grapes on a shelf, but be sure to avoid direct airflow into the refrigerator (i.e., not near the vents). It's also a good idea to keep the grapes away from foods with strong odors, such as onions, as they can absorb them.

Finally, it's best to avoid glass containers and keep the grapes in their original packaging. Grapes need good air circulation to prevent spoilage. If you transfer them to a new container, make sure it's well-ventilated. You can store them in a plastic bag, but be sure to poke some holes in it to prevent excessive moisture buildup.

How to make your grapes last longer

Storing grapes correctly is essential for keeping them fresh longer, but the first step is choosing the right bunch at the store. A simple way to do this is by looking at the stem. The best grapes will have a strong, green stem. Brown stems indicate that the grapes have already lost moisture and won't keep well at home.

Shiny skin is another indicator of freshness when buying grapes. You can also use skin color as a guide: there are many types of grapes, but green grapes should have a slightly yellowish hue, red grapes shouldn't have green spots, and black grapes should be a deep purple.

One of the reasons grapes can spoil quickly is washing them before storing them in the refrigerator. It's best to leave them unwashed until you're ready to eat them, as washing creates excess moisture and accelerates spoilage. When you're ready to eat them, you can rinse them under running water or in a colander, but the ideal way to clean them properly is to wash them with a mixture of water, salt, and baking soda.