How Sriracha Is Actually Made: The One Factory, the Seasonal Peppers, and the Town That Sued

In mid-July, the trucks start running before dawn. Jalapeños harvested overnight from a farm in Ventura County travel down the coast to a building in Irwindale, California, where they're processed within hours of leaving the field. The same thing happens throughout the season, which runs into October or early November. Then it stops, and the factory lives off what it made until the following summer.

Every bottle of Huy Fong Sriracha in the world comes from that one building. One factory, one city, one harvest window. That's not a supply chain vulnerability that emerged over time. It's a production model that hasn't meaningfully changed since Huy Fong moved to its current Irwindale factory, which opened in 2010 and produced its first batch in 2012. Understanding it explains both what makes the sauce so consistent and every shortage that's ever followed.

One Farm, One Season

For most of Huy Fong's history, those peppers came from a single source: Underwood Ranches, a Ventura County farm that had grown the company's specific red jalapeño variety under contract since the 1980s. The variety isn't a commodity order. Huy Fong's specifications cover sugar content, color, and moisture level, and Underwood gradually expanded its acreage over the decades to accommodate the volume. At its peak, thousands of acres of California farmland were dedicated to a single condiment's supply chain.

The harvest window typically runs from mid-July into October or early November, roughly three to four months. Everything the factory will produce in the next twelve months arrives in that window. During the Underwood Ranches era through 2016, there was no second crop and no alternative region to draw from mid-year; once current supply ran out, there was no buffer stock from a prior harvest. The season ends and production continues on stored mash until the following summer.

What Gets Made First Isn't the Sauce

The jalapeños don't go directly into sriracha. They go into a mash. Fresh peppers come off the truck, run through a grinder, and get blended with salt and garlic. That mixture gets packed into barrels and set aside. What happens next is fermentation: not aggressive, not long by the standards of an aged hot sauce, but real. The salt controls the microbial environment while the pepper's natural sugars drive a mild lactic fermentation over the following weeks and months.

This is why Huy Fong Sriracha sits in an unusual place in the fermented vs. vinegar spectrum. The lactic acid from fermentation is present, but so is distilled vinegar added during the final blend. The fermentation stage builds the base character; the vinegar adds the sharp top note. It's not deeply funky. Nothing about the sauce reads like a long-fermented product, but the production process is more layered than most people assume when they glance at the ingredient list.

Four Ingredients

When the time comes to produce sauce from the stored mash, which happens year-round and not just during harvest, the formula is short: fermented chili paste, distilled vinegar, sugar, garlic. The garlic appears twice. It goes in during the initial mash grind and again during the final blend. That double application is structural, not accidental. It's the reason Huy Fong Sriracha reads as more savory and garlic-forward than Thai-style sriracha brands like Shark or Sriraja Panich, which tend to position sweetness as the primary note.

The sugar is doing balancing work, not flavoring work. The sauce doesn't taste sweet. It tastes calibrated. That's a meaningful distinction. Sugar in a hot sauce formula can either be a front-of-palate feature or a background tool for rounding heat and acidity. In Huy Fong's case, it's the latter. Increase it slightly and the whole character of the sauce shifts.

There's no food coloring. No thickeners or stabilizers. The bright red is the pepper itself, specifically the variety and ripeness spec that Huy Fong built into its sourcing contracts. The viscosity comes from the ratio of solids to liquid in the mash. The label has four lines of ingredients. A lot of industrial sauces with a dozen additives still read as thinner and less cohesive.

A Town Files Suit

In 2013, the city of Irwindale sued Huy Fong Foods over odor complaints from nearby residents. The timing wasn't coincidental: the complaints centered on harvest season, when large volumes of fresh jalapeños are being ground and the airborne capsaicin levels around the facility become significant. Residents reported respiratory and eye irritation. The city sought a temporary restraining order to halt production.

A judge denied the city's initial restraining order request on October 31, but on November 27 ordered Huy Fong to stop any operations causing the odors. The city dropped the lawsuit on May 29, 2014, after Huy Fong installed stronger air filtration and committed to further improvements at the start of harvest season. The factory continued operating. But the lawsuit briefly made visible what the stable decades had obscured: a production stop during the harvest season doesn't mean a bad quarter. It means no sauce for the year.

When the Chain Broke

In 2016, Huy Fong's decades-long agreement with Underwood Ranches ended after a dispute over payment for the next season's crop. Underwood had expanded its acreage significantly to meet Huy Fong's volume requirements, and the two sides could not reach an agreement on compensation. After the split, Huy Fong transitioned to sourcing peppers from farms in Mexico. In June 2022, the company paused production; Huy Fong attributed the halt to 'unexpected crop failure from the spring chili harvest,' and reporting linked the failure to drought conditions in Mexico.

The 2022 and 2023 shortages were the most disruptive in the brand's history. Shelves emptied. Restaurants pulled their condiment tables or started rationing. Resale platforms listed bottles at $50, $100, occasionally more. A product that had been a $4 staple became a commodity with secondary market pricing.

What the shortage confirmed is something the decades of stability had kept invisible: Huy Fong Sriracha had moved from product to ingredient. Restaurant kitchens build recipes around specific sauces the way they build recipes around specific cuts of meat. When the sauce disappeared, the dish changed. For a significant portion of the food service industry, 2022 was the first time anyone had thought carefully about where the peppers came from or how many weeks a year they were available.

What Makes It Hard to Replace

Huy Fong makes more than one product. Huy Fong Chili Garlic Sauce and Huy Fong Sambal Oelek run through the same facility, draw from the same pepper sourcing approach, and hit their production peaks on the same seasonal schedule. Both saw parallel shortages in 2022-2023 for the same reason. The resilience argument for product diversification doesn't fully hold when every product in the lineup shares the same upstream constraint.

The imitation sriracha category expanded quickly during the shortage. Established brands and smaller producers alike promoted sriracha-style products to fill the gap. When Huy Fong returned to shelves, most of them lost their opportunistic sales bump. Consumers went back. That's partly habit and partly the reach of Huy Fong's distribution infrastructure. But it's also the formula: competitors working backward from a finished product to reconstruct the flavor are starting from a different place than a company that has spent four decades refining the spec on the peppers going in.

Huy Fong has since diversified its pepper sourcing, which is the obvious structural fix. The bottles are back on shelves at standard retail prices. But the shortage made the production model legible in a way it hadn't been for most of the brand's history. The constraint that produces the consistency, and the constraint that produces the vulnerability, are the same thing: one season, one spec, one building.