Green beans: buying, storing and moving the 28 lb box

Green beans are a volume item: every salad bar, steam table and holiday sideboard in the county runs through them. King Quality Produce receives them from summer through winter, following the harvest from California south into Mexico, and packs them in 28 lb boxes. Here is where they come from, how USDA grades them, how to hold them so they stay crisp, and what the nutrition numbers say.

What we carry and when

Our green beans are the straight, round-podded snap bean, the type the USDA standard covers as snap beans used whole rather than shelled³. KQP carries a single Standard pack, 28 lb to the box, and we have them from June through February. The pack is built for restaurants and markets that move cases, whether the beans are coming off California fields in summer or crossing from Mexico in January.

Snap beans are harvested about 8 to 10 days after flowering, when the pod is fleshy and bright green and the seeds are small; picked later, pods go pithy and tough and lose their color². That short window is why condition on arrival varies more than it does for a hard vegetable.

Where green beans grow

USDA's Vegetables 2025 Summary, released in February 2026, counts 139,100 harvested acres of snap beans in the United States in 2025, with total production of 11.64 million cwt, of which 2.46 million cwt was sold on the fresh market⁴. The fresh-market crop was valued at $177 million at an average $71.90 per cwt⁴. Most American snap bean acreage is grown for processing: Wisconsin harvested 48,500 acres and produced nearly 5 million cwt, and only about 120,000 cwt of it went to the fresh market⁴.

California is a fresh-market state. Its 6,800 acres produced 523,600 cwt in 2025, and 523,100 cwt of that, essentially all of it, sold fresh⁴. Florida, the other large fresh-market producer, harvested 32,700 acres and 1.93 million cwt, though USDA withholds its fresh-market split to protect individual operations⁴. Our program follows the California harvest through summer and fall and shifts to our Mexican growers for the winter months, which is how the 28 lb box stays on the list from June through February.

USDA grades and what to look for

The fresh snap bean standard, effective July 5, 1990, sets three grades³. U.S. Fancy beans are of reasonable and fairly uniform size, well formed, bright, clean, fresh, young and tender, firm, and free from soft rot and damage. U.S. No. 1 relaxes that to fairly well formed, fairly bright and fairly young and tender. U.S. No. 2 beans are fairly fresh, firm and not overmature, free from soft rot and serious damage³. Lot tolerances by weight are 10 percent for Fancy, 13 percent for No. 1 and 15 percent for No. 2, each with no more than 1 percent soft rot³. A broken bean counts as damage when the remaining piece is shorter than 3-1/2 inches³. There are no sieve sizes or size classes in the fresh standard; "reasonable size" means pods are not spindly or excessively short for the variety and were not prematurely picked³.

On receiving, use the UC Davis quality indices: well formed, straight, bright in color, fresh-looking, tender but firm, and a clean snap when bent, with no leaves, stems, broken beans, blossom remains or insect damage². Then look for three specific faults. Rusty brown spots mean the beans were held too cold, and those lesions are highly susceptible to fungal attack². Translucent patches mean rough handling, and they will decay². Limp pods mean water loss: about 5 percent weight loss produces shriveling and limpness, and beans are unmarketable at 10 to 12 percent².

• Bright, even green with no rusty flecks
• Snaps clean; no bend without a break
• No translucent or water-soaked patches
• Cold on arrival and dry in the box

Storage and shelf life

Hold green beans at 41 to 45°F and 95 to 100 percent relative humidity for a shelf life of 8 to 12 days². The window is narrow on both sides. Below 41°F, chilling injury develops: an opaque discoloration of the whole bean after five or six days, sometimes surface pitting, and most often the rusty-brown spots, which appear in about 2 days at 34°F, 4 days at 36°F and 8 to 10 days at 41°F; at 50°F there is no discoloration². Freezing begins at 30.7°F². Above 45°F, respiration climbs, 29 ml of CO2 per kilogram per hour at 50°F against 17 at 41°F and 65 at 68°F², and any free moisture on the pods invites surface decay².

Ethylene is the hidden cost. At usual storage temperatures it strips the green pigment and increases browning, and concentrations above 0.1 ppm reduce shelf life by 30 to 50 percent at 41°F². Keep beans out of the room where bananas, tomatoes or avocados are ripening. The practical rule for a 28 lb box: receive it cold, keep it closed, and turn it within the week. Decay organisms such as Pythium, Rhizopus and Sclerotinia follow chill damage and can form nests of decay on broken or damaged beans², so pull any crushed pods when you open the case.

Nutrition

Per 100 g raw, USDA FoodData Central lists green snap beans at 31 calories, 90.3 g water, 6.97 g carbohydrate, 2.7 g fiber, 3.26 g sugars, 1.83 g protein and 0.22 g fat¹. The vitamins and minerals: 43 µg vitamin K, 12.2 mg vitamin C, 33 µg folate, 35 µg vitamin A as RAE from 379 µg beta-carotene, 211 mg potassium, 37 mg calcium, 25 mg magnesium, 1.03 mg iron and 6 mg sodium¹. They also carry 640 µg lutein and zeaxanthin¹.

Vitamin K is the notable number. The NIH Office of Dietary Supplements sets the adequate intake at 120 µg a day for men and 90 µg for women, with vitamin K acting as a coenzyme for the proteins involved in blood clotting and bone metabolism⁵. A 100 g serving covers roughly a third to a half of that. The 12.2 mg of vitamin C is about 14 to 16 percent of the adult RDA of 90 mg for men and 75 mg for women⁶. Green beans are, in short, a low-calorie, low-sodium vegetable that is a source of vitamin K, fiber and folate.

In the kitchen

Green beans are the bean for speed. Blanched three minutes and shocked, they hold color and crunch through a day of salad-bar service. Sautéed with garlic and chile they are a side in every kind of Los Angeles kitchen: Sichuan dry-fried beans in the San Gabriel Valley, fagiolini with lemon in Italian dining rooms, lubia polo and the Armenian and Lebanese bean stews of Glendale and Westwood, and every caterer's November green bean casserole. Steam tables and commissaries want the straight, uniform pod because it trims fast and portions evenly, and the 28 lb box is sized for that volume.

For markets, display them cold and keep them dry. Do not mist or ice them: UC Davis notes that surface decay develops on stems and beans when free moisture is present during storage above 45°F². A bulk bin topped up from a cold box outsells a wet display that browns by evening.

Ordering

Green beans are on the list from June through February in 28 lb boxes. Call the office at (213) 627-7181 for this week's counts and where the beans are coming from.