Freezing Seasonal Produce: Mango Pulp, Peas, Tomatoes and Greens

When matar is cheap in winter and mangoes pile up in June, the freezer is the smartest shelf in the kitchen. Blanch vegetables for 1 to 3 minutes, chill them fast in ice water, dry them, freeze them flat in meal-sized packs, and most will taste good for 8 to 12 months in a proper freezer. Here are the exact blanch times, how to store vegetables in the fridge and freezer for a long time, which foods turn to mush, and how to know if vegetables are freezer burned.

Why blanching matters (and what it is)

Blanching means dipping vegetables in boiling water for a minute or two, then plunging them into ice water. It sounds fussy. It’s the step that decides whether your peas taste sweet in April or like hay.

Here’s why. Vegetables contain enzymes (tiny natural workers that keep changing the food). Freezing slows them, but doesn’t stop them. Over weeks, they fade colour, toughen texture and make off-flavours. A short blanch switches those enzymes off. It also brightens the colour and softens leafy greens so they pack down small.

Fruit and a few vegetables skip this step. Mango pulp, tomatoes and capsicum freeze fine raw, because they’re going into cooking or drinks anyway.

Blanching times for common vegetables

Start the clock when the water returns to a boil after adding the vegetables. Use at least 4 litres of water for every 500 g of vegetables, so the temperature doesn’t crash.

Freezer life here means best quality at −18 °C. Food kept frozen at that temperature stays safe longer, but it slowly gets drier and duller.

How to freeze peas and greens, step by step

1. Bring a big pot of water to a rolling boil. Fill a large bowl with cold water and a tray of ice cubes.
2. Add up to 500 g of shelled peas or cleaned greens. Cover and start the timer when the boil comes back.
3. Lift them out with a slotted spoon straight into the ice water. Chill for the same time as the blanch.
4. Drain well, then spread on a clean kitchen towel and pat dry. Wet vegetables freeze into one icy brick.
5. For peas, beans and florets, spread in one layer on a steel tray and freeze for 1 to 2 hours. Then bag them. They’ll stay loose, so you can pour out a cupful.
6. For greens, squeeze out water, then pack in 200 to 250 g portions (enough for one saag or one palak dish), flattened in bags.
7. Press out the air, seal, label with name and date, and freeze flat. Stack them once solid.

Already-cooked sarson ka saag also freezes well in portion boxes for 2 to 3 months. Leave 2 cm headroom because it expands. For methi-specific cleaning and freezing, see our fresh methi guide.

How to freeze mango pulp

Chaunsa, Sindhri or Alphonso at their peak give the best pulp. Overripe mangoes are fine, as long as there’s no rot, sour smell or fizz.

1. Wash the mangoes under running water and dry them.
2. Peel, cut the flesh from the stone, and blend until smooth. About 3 medium mangoes give roughly 500 ml of pulp.
3. Sugar is optional. Plain pulp freezes well. Adding a squeeze of lemon (1 teaspoon per 500 ml) helps hold the colour.
4. Pour into small boxes or bags in 250 ml portions, leaving 2 cm headroom. For small amounts, freeze in an ice cube tray, then bag the cubes.
5. Freeze flat. Use within 8 to 12 months in a deep freezer, or 2 to 3 months in a fridge ice box.

Thaw in the fridge overnight, or drop frozen cubes straight into a blender for a mango lassi or shake. Thawed pulp keeps 2 days in the fridge. Chunks can be frozen too: tray-freeze cubes of mango for 2 hours, then bag them.

How to freeze tomatoes

Tomatoes are the easiest thing to freeze and the easiest to misuse. Once thawed they’re soft and watery, so they’re for cooking only: salan, daal tadka, chutney. Not for salad.

1. Wash, dry and cut out the green stem spot.
2. Freeze whole on a tray, then bag. When you take one out, run it under warm water for 10 seconds and the skin slips off.
3. Or blend into puree, cook it down for 10 minutes if you like it thicker, cool it, and freeze in 250 ml portions or ice cube trays.
4. Use within 6 to 8 months for the best taste.

How to store vegetables in the fridge for a long time (before freezing is needed)

Not everything needs the freezer. The fridge keeps many vegetables for 1 to 3 weeks if you store them right. Carrots, cabbage and beetroot can last 2 to 3 weeks in the crisper. Gobi and broccoli last about a week wrapped loosely. Greens last 3 to 5 days, longer in a box lined with a dry cloth. Keep vegetables unwashed until you use them, as water on the surface speeds rot. Also keep them away from bananas and apples, which speed up decay; see ethylene pairs.

Foods that don’t freeze well

• Cucumber, lettuce, raw radish and salad leaves: they’re mostly water, so they turn limp and slimy.
• Raw potatoes: they go dark and grainy. Par-boiled chips or cooked aloo freeze better.
• Watermelon: the texture collapses. Frozen cubes are fine for sharbat or blended drinks, not for eating as slices.
• Whole citrus: juice freezes well, the fruit does not.
• Dishes with raw dahi or cream: they split when thawed.

How to know if vegetables are freezer burned

Freezer burn looks like dry, greyish-white or brownish leathery patches, often with lots of ice crystals inside the bag. It happens when air reaches the food and pulls water out of it. It’s safe to eat. It just tastes flat and feels woody.

Cut off small burned patches before cooking. If a whole bag of peas is pale and shrivelled, use it in a soup or khichdi where texture matters less. To prevent it, press all the air out, use thick bags, and don’t keep opening the freezer door.

Different story if food smells sour, looks slimy after thawing, or has been thawed and left out for hours. Throw that away.

Loadshedding and power cuts

A full freezer that stays closed keeps food frozen for about 48 hours; a half-full one, about 24 hours. Keep the door shut. If food still has ice crystals or feels fridge-cold (4 °C or below) when power returns, you can refreeze it, though quality drops. If it has sat thawed and warm for more than 2 hours, throw it away.

Surprising facts

• Frozen peas are often sweeter than “fresh” market peas bought a few days after picking, because peas start turning their sugar into starch soon after they’re picked.
• Water expands by about 9% when it freezes. That’s why a full, tight box of pulp can crack its lid.

Freezing vegetables and fruit: your questions

Find more seasonal produce guides in Fruits and Vegetables.