Farm Bulletin: Field Peas on the 45th Parallel

For well over a decade, we were stymied by the genus Vigna, our efforts figuring as one of the farm's major nonprofit endeavors. The best we could achieve was parity, a ratio of one pound sown to one pound harvested, and we were almost celebratory about that pathetic achievement, seeing it as a hopeful sign. Most efforts failed even this slight measure of hope.

The adzuki in the field.

Indigenous to tropical Africa and Asia, this genus of legumes has a complex of vernacular names, including field peas, cow peas, chickpeas, southern peas, mung, dal, gram and adzuki. They have a distinct gamy flavor relative to the garden beans. They were also one of the original "beans," along with the fava, of southern Europe—a character in Annibale Carracci's classic 'Mangiafagioli' (~1585) was tucking into a bowl of black-eyed peas, not the American garden beans we associate with Italians today.

Fresh adzuki.

Many plants have highly sensitive biochemical chronometers which trigger various functions such as growth, dormancy and flowering according to the dark period of the day. Plants with this requirement are called photoperiodic, and field peas possess that characteristic. In some crops agricultural cultivars have been selected for a very tight photoperiod. For example, onions and cabbage are not useful if they go to flower, or bolt, willy nilly. In Oregon, crops adapted to southern latitudes do not set flower until the nights lengthen in August or September, and there is not enough time to set and ripen their fruits. This is why okra, limas and field peas are not successful at this latitude, and as yet have no commercial cultivars suitable for Oregon. We have wasted a great deal of time and treasure on all three; hope springs eternal.

Experimenting with other crops gave us an appreciation of the challenges farming at the 45th parallel. One of the fascinating entries in the Tokyo Foundation is about Longfellow flint corn originating in New England that is grown on the island of Hokkaido. The northern part of the island lies on the 45th, which is why that variety grew well. We realized we needed to understand the crops of the island better, and that led to our Hokkaido Project. Both soy and adzukis are grown on Hokkaido, so we started trying varieties from the prefecture. Adzukis are the one Vigna, or field pea, that has commercial potential here in Oregon. We are also working on two traditional soy varieties, more on that later.

Fresh adzuki ready for market.

Initially, adzukis didn't sell well. We had licked the biology only to confront a marketing challenge. Despite the hesitant reaction, four customers gave us the spine to plant more. Mio Asaka (Mio's Delectables) and Naoko Tamura (Chef Naoko) used them in a traditional Japanese way as red bean paste. Last winter, David Sapp of Park Kitchen asked us if we could suggest one of our beans as a substitute for black-eyed peas in Hoppin' John. A light bulb lit up and we suggested using the adzukis. We warned him they are different, but of a kind, whereas the other beans we grow are definitely not of that kind. He was happy with the result, and encouraged us to plant more. Sarah Minnick was the other person who brought them into her kitchen with a variation on their traditional use in sweets; at Lovely's 50/50 they ended up ice cream.

A couple of weeks ago we got the idea that perhaps adzukis would be tasty as fresh shelled beans. We asked people who might know and poked about a bit online, but no one seems to share our idea. Then again, no one had ever suggested grinding popcorn and cooking it for polenta, or steeping it in slack lime for hominy, so there is no harm in trying an unshared notion. Bear in mind there are a host of ideas that have been discretely buried and forgotten in the Ayers Creek compost pile as well. As it turns out, fresh shelled adzukis make a tasty dish, just like one of the southern peas. Not quite the perfection of a Lady pea, but up there with next tier field peas. We will have some at market this week, a one-time event, and then you all will have to wait for the dried adzukis.

Farm Bulletin: Our Bean Primer

Corn, beans, sweet potatoes…it's hard to say which crop sets contributor Anthony Boutard's heart aflutter more. Here he offers a basic guide to the beans he and Carol grow at Ayers Creek Farm and how to cook them to best enjoy their flavor.

Dried legumes have a relatively short life. Typically, after two years, chickpeas and garden beans become stale and eventually they may not even soften up no matter how much they are cooked. They are in their prime for six months after harvest, and good for a year.

Anthony and the Roto-Fingers Pea-Bean Sheller.

The bean is a seed and the two halves within the seed coat are storage leaves bridged by a stalk supporting the root and a shoot which will grow into the plant. The cotyledons store a mixture of carbohydrates (long chains of sugar molecules) and proteins (long chains of amino acids) that were originally formed in special seed tissue called the endosperm. In grains, the endosperm is retained, but in legumes and many other plants, it is entirely absorbed into the cotyledons. This repackaging of these long molecules apparently makes them vulnerable to tangling, sort of like the way that elastic bands, string and paper clips left in a drawer will eventually form a knotted mass. As the carbohydrates and proteins get tangled up they become harder and then impossible to separate into digestible units by heat or enzymatic action. This repackaging problem is probably why beans have a shorter shelf life than grains.

Soaking the beans.

We always soak our legumes overnight or a bit longer. As the seed draws in water, enzymes are released which start to chop apart its proteins and carbohydrates into smaller units. In our experience, allowing the seed's natural enzymes to start the process yields a sweeter and smoother cooked bean. The next day, we drain off the soaking water. Seeds must germinate in a relatively hostile environment. To fend off hungry invertebrates, fungi and bacteria, they release nasty compounds that make life unpleasant for these creatures and us. There is a myth that the soaking water contains valuable nutrients; taste it and decide for yourselves. We dump the water, rinse the beans and start cooking them in fresh water.

Harvesting the beans.

Beans cook best in a nearly neutral pH, which makes water the best cooking medium. In some areas, it is customary to add a pinch of "soda" to raise the pH of  the water. Acidic ingredients such as tomatoes should be added after the beans are cooked. Some people believe salt impedes the cooking of beans. Whether or not this is true, we always salt our beans after cooking. Judy Rodgers' advice in The Zuni Cafe Cookbook is to salt the cooking liquid to taste after the beans are done and let them rest. This works well for us.

Finally, the cooking liquid of all of our beans is really delicious and, if the recipe calls for draining the cooked beans, retain the liquid for some other recipe or enjoy it as you would a cup of stock.

The Bean Roster

We sell both pole and bush beans. The pole beans (Borlotto, Tarbais, Black Basque) cost more to grow because they must be trellised, so we package them in 3/4 pound packages. Bush types come in 1-pound packages. Over the last decade, we brought more than 50 types to the market. We have settled on this group of ten which provides a manageable level of diversity and includes our favorites.

Borlotto bean stew.

Borlotto Lamon: This is a classic Italian pole bean from the Veneto. Traditionally used for la jota. The flavor is nutty with a very fine, silky texture, our choice for a desert island bean. Several years ago, a virus brought in by some seeds purchased for a different variety destroyed our crop. We bought new seed but it had declined in quality; the beans were highly variable, with about 90% off-type, and ripened over a five week period. As there is no substitute for the variety, we have spent the last three years reselecting the crop in order to improve its quality. We have invested well over $2,000 in the effort, and we are very pleased with the result.

Ayers Creek tarbais beans.

Tarbais: A flat, white pole bean traditionally used for cassoulet. Also great with kale and cabbage dishes.

Black Basque: A black pole bean from northern Spain. It is a slightly sweet bean with a delicate flavor. Unlike other black beans, it is best prepared with a light hand on the seasonings, and served simply in its own broth with some good bread.

Zolfino: A white bush bean with a yellowish cast. Like the previous bean, go easy on the seasoning, just a sprig of sage or rosemary is enough. We add a splash of vinegar and olive oil before serving.

Purgatorio: A small white bean traditionally served with fish. We have it courtesy of our sister-in-law, Shirin. Many years ago, we had dinner at Al Covo, a restaurant that specializes in fish, and the person serving us noted that she was from Texas and wanted to know where we lived and what we did. We introduced ourselves as bean farmers from Oregon. A few minutes later her husband, Cesare Benelli, came out and told us how much he loved beans. The chef then turn serious and told us that we should grow the bean from Gradoli, as it is the best bean for serving with fish. He checked in the kitchen, but had run out of the beans. A few months later, Shirin sent us a box with several types of beans, including 'purgatorio', the bean of Gradoli. This week, we enjoyed them as a soup in their own broth with some Oregon bay shrimp sauteed with a bit of cumin and lots of freshly ground cayenne.

Black Turtle: The standard black bean for Cuban and Mexican dishes. Holds it own in the company of strong seasonings and whatever else you fling at it.

Gorgeous Dutch Bullets. 

Dutch Bullet: A golden round bean with a red eye. Good for soup, perhaps with some escarole added. The late Dutch plant breeder, Kees Sahin, recommended  that we grow these beans as they are a favorite in Holland. Our friend, Alice Doyle of Log House Plants, brought Kees to the farm and we spent a whole evening tasting and talking about beans and other vegetables. By coincidence, our neighbors grew several acres 'Bull's Blood' beet for seed this year which is one of Kees's varieties.

Vermont Cranberry: A red kidney bean with dark streaks. Use as you would other red kidney beans. The common name is a misnomer as cranberry beans are round and red like the fruit. This type of bean used to be called a horticultural bean, and is very similar to the old 'Boston Favorite' bean, and it will be perfect for baked beans.

Soldier: A white kidney bean from Northern New England. Similar to the other white kidney beans, the cannellino and lingot. Good for soups and other dishes that call for navy beans or white kidney beans.

Flageolet: A small, greenish bean traditionally served with lamb. It is also good in a gratin. It is named after a small wind instrument related to the recorder, a reference to its long, delicate pod.