Is Firehouse Subs Sriracha Sauce High in Histamine?

Firehouse Subs Sriracha Sauce

High histamine

This sriracha sauce is high in histamine, mostly from the sriracha itself plus sodium bisulfite and vinegar.

Food here is usually assembled to order from components that were prepped earlier in the day, so it tends to be fresher than a drive-through and less fresh than cooking at home. Histamine builds up as protein foods sit, so how long the chicken or beef has been in the warmer matters as much as what is in the bowl. Treat the rating above as a starting point.

Histamine Liberator

This is a chili-based hot sauce built on chili, sugar, salt, garlic, vinegar, and sodium bisulfite, and it lands high.

Sriracha and sodium bisulfite lead it — the sriracha base is high, and the added sodium bisulfite (a preservative) is high as well, so together they set the level.
Chili and vinegar add to it — the chili sits at moderate and the vinegar is moderate too, so even the supporting cast keeps things elevated rather than pulling the sauce down.

If you want a lower-histamine build, it is easier to skip the hot sauce entirely than to adjust it.

This rating comes from Firehouse Subs' own published ingredient statement, read on August 11, 2026. Restaurant recipes vary by location and change over time, so always check the current listing: source 1, source 2. How we rate foods →

Firehouse Subs Sriracha Sauce and Firehouse Subs are trademarks of their respective owners. This page is an independent histamine reference and is not affiliated with, endorsed by, or sponsored by the brand.