So there are plenty of fruits and vegetables in the world and only so many hours to talk about how to store them. Perhaps we should start with what is around right now and work from there?
Salad leaves – Lettuce, rocket, watercress and other cresses, like land cress or crinkle cress, (watercress wilts quickest) and spinach (wilts second quickest) are best eaten straight away once they have been picked and washed. To store it, I put mine in containers in the fridge mostly because I know I will be using it over the next few days. Other people keep theirs in plastic bags or between kitchen roll. If you have left the salad out for too long and it has wilted, leave it in a bowl of cold water to rejuvenate it before refrigerating it immediately. You can freeze green leaves, like spinach or lettuce but they will be incredibly soggy and are only useful for cooking. You might as well stick to fresh leaves rather than freezing them.
Carrots – If you are using them over a couple of days then they can be again kept in the fridge in a plastic bag or a container. Otherwise, the traditional way of storing them is in a cool, dark place in a box filled with dry sand. This can also be done to swedes, celeriac, sweet chestnuts, parsnips, celery and beetroot (celery will keep in the fridge for ages. Swedes and celeriac can be left in the ground for months at a time).
Peas – Best eaten as soon as they have been podded if consumed raw. If they are slightly too old to be delicate enough to eat raw, pop them into a pan of boiling water for 2 minutes, drain and serve. To freeze them, once you have boiled them, place them in freezing ice-cold water for a few minutes until cool. Place them in plastic bags ideal for the freezer, make sure no air has been caught inside. Freeze them and use over the next few months. This is the same technique for runner beans, broad beans or sweetcorn (by the way, sweetcorn loses its taste rapidly after being picked. It needs to be cooked and eaten or frozen asap).
Onions – Once pulled out of the ground, lay them out on newspaper to dry out, turning them over so that both sides are dealt with. Then, suspend them from the ceiling in a cool room or inside hessian/netted sacks. We use our utility room as it is very cool and is not too light.
Garlic – harvest the bulbs whole from the ground and place in a cool, dark place. We keep ours on a low-down shelf in out kitchen. When using, take one segment from the entire garlic bulb at a time, peel and use. From my experience, homegrown garlic tends not to keep as long as shop bought garlic so only pull them up from the ground a little at a time, don’t be tempted to harvest them all at once.
Potatoes – I worked out last year that potatoes can be left in the ground for a long time and you do not need to rush to dig them up unless you have a wire worm or slug problem. Even if they have blight, they will keep better in the ground rather than out of it. However, to store them once they have been harvested, copy the same technique used for drying onions, laying them out on newspaper and turning them over. Then put them inside hessian sacks in a dark place, like a cupboard under the stairs to prevent them from turning green and becoming unusable.
Berries – If you can’t eat them all fresh at once because you have a glut or want to spread them out for later in the year, freeze them in plastic bags or containers once they have been washed and slightly dried. To use them, defrost well and drain the excess liquids that will taste a little to fridgey. Some berries like raspberries, blueberries or grapes should taste fine uncooked once they have been frozen. Other berries, like strawberries, have such a high water content that they will taste strange once defrosted raw. I prefer to use my frozen fruit for jam or inside cooked puddings, like muffins, cakes, stewed fruit dishes, crumbles or pies. I save the fresh fruit for eating uncooked.
Summer squashes: Courgettes – You might have been starting to pick some already. These are best sliced from the plant, washed and cooked straight away but can be stored in the fridge for a couple of days, depending on the variety and the ripeness of the vegetable. Best stored in an air-tight container or a plastic bag. Boil, fry, grill or roast them. Courgettes cannot be frozen because of their high water content, much like strawberries. Winter squashes (e.g. Butternut squashes and pumpkins can be frozen once they have been roasted – Slice, into small pieces, lay out on a baking tray and drizzle generously in olive oil. Roast in a preheated oven of 180C for about 40 minutes or until they are browned. Allow to cool. Place in plastic bags and freeze straight away). Courgettes and cucumbers will only become sloppy mush when frozen so do store them only in the fridge or eat straight away.
Cabbages: Can be stored whole in the fridge for a few days. If the outer leaves start to brown, wilt too much or go mushy, peel them off and discard them and use the rest if unaffected. If cooked, cabbages can last in a container for about three days. This is the same for cauliflower and broccoli (broccoli seems to brown slightly quicker out of the two when stored in the fridge).
Spring Onions – Can be kept in the fridge for a couple of days. If the outside skin starts to dry up or the stem wilts too much, cut and peel the outside coating off and use what is underneath if it is unaffected.
Radishes – Likewise, they can be stored whole in the fridge or cut up and kept raw in a container for about two or three days before they will start to brown and become un-appetising.
Kale – Store in an air-tight container, raw, for up to a week maximum inside the fridge. Once cooked, store in a container for two or three days in the fridge.
Oriental greens – Think Pak Choi, Tatsoi, Komatsuna, Chinese Cabbage, Mibuna, Mitzuna, Mizpoona… Once cooked, they can be stored for about two days. Raw, they might be able to last a little longer in the fridge before they wilt or turn to liquid. Treat them more like spinach, liable to becoming soggy after some time being picked.
Tomatoes – It might be slightly early to write about tomatoes but it is getting close enough. I did not know until last year that tomatoes keep their looks and taste longer if stored outside the fridge. Gardner James Wong (‘Grow for Flavour’) suggests keeping them in a fruit bowl. We tried this last year and it does work well. It also allows some of the slightly under-developed ones to ripen. If freezing the tomatoes, dunk them briefly into a pan of boiling water to shed their skins before placing them into cold water, likewise for the beans and peas. Store in plastic bags in the freezer and use in dishes where you would use cooked/tinned tomatoes or make tomato chutney.
That is it for now. More coming soon…