How to Keep Strawberries Fresh

Immediately discard moldy strawberries. Mold can spread to other berries and quickly ruin the entire box. While you can usually find a box of fresh, firm, bright red strawberries at the store, there may be one or two spoiled ones mixed in. Check the strawberries after purchasing and remove any that are starting to mold, or are dark and soft, as they may spoil soon.

• This rule also applies to other moldy fruits placed near strawberries.

Only wash strawberries before eating. Strawberries absorb water and become mushy if left wet for too long, which leads to faster spoilage. You can slow down this process by washing them just before eating or adding them to another dish.

• If you’ve already washed the whole box, use paper towels to dry them off.
• Washing strawberries before eating is a good way to remove harmful chemicals or pests from the soil.

Freeze ripe but still firm strawberries. Freezing strawberries that have started to spoil or become mushy is ineffective. The best results come from fresh, firm strawberries with a bright red color. Discard any moldy or mushy strawberries into a compost bin, trash can, or the garden.

Remove the stems. Most strawberries sold come with stems still attached or with small remnants of the stem. You need to remove this part before freezing them.

Add sugar or syrup (optional). Mixing strawberries with sugar or syrup will help preserve their flavor and texture, but not everyone prefers the extra sweetness once the freezing process is complete. If you choose this method, use 3/4 cup of sugar for every 1 kg of strawberries, regardless of how they are prepared. Alternatively, you can make a simple syrup by combining equal parts sugar and warm water, chill it, and then pour it over the strawberries.

• While it may seem logical to add sugar or syrup after placing the strawberries in a container or bag, consider whether you want to use sugar, as you may need to leave some space in the container or bag.

Place strawberries in a container that is freezer-safe. Both thick, durable glass and hard plastic containers are suitable for freezing, as long as they are rated for freezer use. Additionally, resealable plastic bags that are freezer-safe can also work well. Make sure to arrange the strawberries without touching one another to avoid them freezing into a solid block. It's typically best to leave about 1.25-2 cm of space in the container or bag to accommodate expansion during freezing.

• If strawberries are frozen in a container or bag without any sugar or syrup, you can spread them out on a tray and freeze them for a few hours. Then, transfer the strawberries into your container or bag as recommended. This method makes it easier to take out individual strawberries rather than a frozen block.

Partially thaw strawberries before use. Remove the strawberries from the freezer and let them thaw in the refrigerator for a few hours before use. For a quicker method, run cold water over them. Avoid using the microwave or other heating methods, as they can cause the strawberries to become mushy. It's fine if there are still some ice crystals on the strawberries' surface, as they will soften after fully thawing.

• The time required for thawing depends on the temperature and size of the strawberries. A larger batch of frozen strawberries will need several hours or possibly overnight to thaw.