Soybean

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Differing varieties of soybean from National Soybean Germplasm Collection (USA)

The soybean (U.S.) or soya bean (UK) (Glycine max) is a species of legume native to East Asia. It is an annual plant that has been used in China for 5,000 years as a food and a component of drugs. Soy contains significant amounts of all the essential amino acids for humans, and so is a good source of protein. Soybeans are the primary ingredient in many processed foods, including dairy product substitutes.

Culinary uses

Soybeans can be broadly classified as "vegetable" (garden) or field (oil) types. Vegetable types cook more easily, have a mild nutty flavour, better texture, are larger in size, higher in protein, and lower in oil than field types. Tofu and soymilk producers prefer the higher protein cultivars bred from vegetable soybeans originally brought to the United States in the late 1930s. The "garden" cultivars are generally not suitable for mechanical combine harvesting because they have a tendency for the pods to shatter on reaching maturity.

Immature soybeans may be boiled whole in their green pod and served with salt, under the Japanese name edamame.

In China, Japan, and Korea the beans and products made from the bean are a popular part of the diet. The Chinese invented tofu and also made use of several varieties of soybean paste as seasonings. Japanese foods made from soya include miso, natto, kinako and edamame. In Korean cuisine, soybean sprouts, called kongnamul are also used in a variety of dishes such as doenjang, cheonggukjang and ganjang.

Soybeans are fermented to produce soy sauce (or shoyu), Chinese fermented black beans and Yellow bean paste, processed for oil and flour. Soybeans are used to produce tofu and many other food substitutes.

How much does one cup of soybeans weigh?

Estimated US cup to weight equivalents:

Ingredient US Cups Grams Ounces
Soybeans dry
1
200 grams 7 ounces
Soybeans cooked
1
75 grams 3 ounces

Conversion notes:
Every ingredient has a cups to ounces or grams conversion table. Search for the ingredient, cup to weight conversions are at the end of each ingredient page.

We also have a generic conversion table and a portions per person lookup.


How to cook soya beans in a pressure cooker

Use this basic guide if you do not have a specific recipe

  • Pick through the beans and discard any discoloured beans or loose skins
  • Soak in cold water for a minimum of the time shown, soaking overnight is usually the best way to achieve this
  • Change soaking water a few times if possible
  • Never cook the beans in the water they were soaked in
  • Rinse the beans well at the end of the soaking period
  • Ensure the pressure cooker is at least a quarter full
  • Never fill the pressure cooker more than half full
  • Always cover the beans with at least 5 cm (2") water
  • Add 2 tablespoons of vegetable oil to the water - this reduces foaming
  • Allow the pressure cooker to get to the required pressure and then begin timing
  • Use the specified pressure release method - this is the natural method in the case of dried beans or pulses
  • A bean is usually perfectly cooked when it can be easily squashed between your forefinger and thumb
  • If the beans are not sufficiently cooked, return to pressure, cook for another 3 minutes and allow the pressure to reduce using the natural method.
    Re-check that the beans are cooked to your liking.
BEAN VARIETY COLD WATER SOAK TIME
minimum period
PRESSURE COOKING TIME COOKING PRESSURE
High = 15 psi
Medium = 10 psi
Low = 5 psi
PRESSURE RELEASE METHOD
Soya bean 8 hours 35 minutes High Natural

See also

5 a day; fruit and vegetable portion sizes

We have recently started to take delivery of a weekly organic fruit and vegetable box which has of course heightened our interest in the 5 a day fruit and vegetable regime. This simple app will show you what makes up one of your 5 a day portions of vegetables. You'll be surprised how small the quantities are in some instances. You'll be able to eat healthier and feel all the better for it.

Select a fruit or vegetable from the picker below to see what its daily portion consists of

What are you waiting for? Pick your fruit and veg now!
3 heaped tablespoons of tinned Ackee
2 Globe Artichoke hearts
7 spears of tinned asparagus
5 spears of fresh asparagus
One third of an Aubergine/Eggplant
3 heaped tablespoons of barlotti beans
3 heaped tablespoons of black-eyed beans
3 heaped tablespoons of broad beans
3 heaped tablespoons of butter beans
3 heaped tablespoons of cannellini beans
4 heaped tablespoons of French beans
3 heaped tablespoons of kidney beans
3 heaped tablespoons of pinto beans
4 heaped tablespoons of runner beans
3 heaped tablespoons of soya beans
2 handfuls of fresh bean sprouts
3 whole bottled beetroot
3 whole fresh baby beetroot
2 spears of broccoli
8 Brussels sprouts
3 heaped tablespoons of butternut squash
2 handfuls of sliced cabbage
3 heaped tablespoons of shredded cabbage
3 heaped tablespoons of tinned carrots
3 heaped tablespoons of fresh carrot slices
8 florets of cauliflower
3 sticks of celery
3 heaped tablespoons of chickpeas
One fifth of a head of Chinese leaves
Half a large courgette
5 cm (2 inch) piece of cucumber
4 heaped tablespoons of curly kale
Half a karela (bitter melon)
1 leek (white portion only)
3 tablespoons of lentils
1 cereal bowl of lettuce (mixed leaves)
1 handful of mange-tout
3 heaped tablespoons of marrow
3 tablespoons of frozen mixed vegetables
14 mushrooms
2 tablespoons of dried mushrooms
16 medium Okra
1 medium Onion
3 heaped tablespoons of pak choi (Chinese cabbage)
1 large Parsnip
3 heaped tablespoons of tinned peas
3 heaped tablespoons of fresh peas
3 heaped tablespoons of frozen peas
Half a tinned sweet pepper
Half a bottled sweet pepper
Half a fresh sweet pepper
3 heaped tablespoons of tinned pigeon peas
3 heaped tablespoons of pumpkin
10 Radishes
2 heaped tablespoons of cooked spinach
1 cereal bowl of fresh spinach leaves
4 heaped tablespoons of cooked spring greens
8 spring onions
1 handful of sugar snap peas
3 heaped tablespoons of swede
1 large sweet potato
6 baby sweetcorn
3 heaped tablespoons of tinned sweetcorn
1 whole sweetcorn cob
1 heaped tablespoon of tomato puree
2 whole tinned plum tomatoes
1 whole fresh tomato
7 fresh cherry tomatoes
3 heaped tablespoons of turnip
150ml glass of unsweetened vegetable juice
150ml glass of vegetable smoothie
1 cereal bowl of fresh watercress
1 fresh apple
2 heaped tablespoons of apple puree
6 halves of unsweetened tinned apricots
3 whole fresh apricots
Half an avocado
1 banana
10 blackberries
4 heaped tablespoons of blackcurrants
4 heaped tablespoons of blueberries
11 tinned cherries
14 fresh cherries
2 clementines
6 damsons
3 fresh dates
2 fresh figs
150ml glass of unsweetened fruit juice
3 heaped tablespoons of tinned fruit salad
3 heaped tablespoons of fresh fruit salad
150ml glass of fruit smoothie
1 handful of gooseberries
8 segments of tinned grapefruit
half a fresh grapefruit
1 handful of grapes
2 kiwi fruit
8 Kumquats
6 tinned lychees
6 fresh lychees
3 heaped tablespoons of tinned mandarin oranges
1 fresh mandarin orange
2 slices of fresh mango (5cm or 2 inch)
1 slice of melon (5cm or 2 inch)
1 nectarine
1 orange
6 passion fruits
1 slice of pawpaw (papaya)
2 halves of tinned peaches
1 fresh peach
2 halves of tinned pears
1 fresh pear
2 rings of tinned pineapple
3 tablespoons of crushed pineapple
1 large slice of fresh pineapple
2 plums
6 tinned prunes
3 prunes
20 tinned raspberries
2 handfuls of fresh raspberries
5 chunks of tinned rhubarb
2 heaped tablespoons of cooked rhubarb
2 satsumas
1 sharon fruit
9 tinned strawberries
7 fresh strawberries
1 heaped tablespoon of sultanas
2 tangerines
1 heaped tablespoon of tomato puree
2 tinned whole tinned plum tomatoes
1 large fresh tomato
7 fresh cherry tomatoes
4 dried apple rings
3 whole dried apricots
1 handful of dried banana chips
1 heaped tablespoon of dried cherries
1 heaped tablespoon of dried cranberries
1 heaped tablespoon of dried currants
2 dried figs
1 heaped tablespoon of dried mangoes
1 heaped tablespoon of dried mixed fruit
2 halves of dried peaches
2 halves of dried pear
1 heaped tablespoon of dried pineapple
3 dried prunes
1 tablespoon of raisins
4 sundried tomatoes