Evelyn Reed This low acid spaghetti sauce combines San Marzano tomatoes, grated carrots, grated celery, and mushrooms simmered for 40 minutes. Baking soda neutralizes residual acidity before serving. One batch serves eight and covers pasta, lasagna, or any dish that normally calls for high-acid sauce.
Finely grating the carrots and celery, rather than chopping them, changes how this sauce handles acidity. Both vegetables naturally buffer acidity, and at that fine texture they dissolve completely during simmering. The result is a lower-acid base that holds the flavor of a regular marinara without the sharp edge that triggers reflux.
Adding baking soda after the sauce finishes simmering is what completes the acid reduction. Baking soda reacts immediately with acid, and adding it too early burns most of it off before the sauce is ready. Waiting until the final minute concentrates the neutralization into one moment without diluting the flavor built during simmering.
Low Acid Spaghetti Sauce Recipe
Course: Side DishCuisine: AmericanDifficulty: Easy8
servings10
minutes30
52
kcalLow Acid Spaghetti Sauce Recipe: San Marzano tomatoes, finely grated carrots, celery, and baking soda keep acidity low. Ready in 40 minutes. Serves 8
Ingredients
- Sauce
1 (28 oz) can San Marzano tomatoes, crushed
½ cup mineral water
3 cloves garlic, optional, crushed and chopped
3 tablespoons olive oil
¾ cup carrots, finely grated
¼ cup celery, finely grated
8 oz mushrooms, optional, finely chopped
1 teaspoon baking soda
1 to 1½ teaspoons salt
½ teaspoon red pepper flakes
2 teaspoons dried oregano
2 teaspoons dried basil (or ¼ cup fresh basil, added at end)
1 tablespoon tomato paste
Directions
- Heat olive oil in a large saucepan over medium heat. Add garlic (if using) and tomato paste. Stir for 30 to 45 seconds until fragrant.
- Add the crushed San Marzano tomatoes, mineral water, grated carrots, grated celery, mushrooms (if using), salt, red pepper flakes, dried oregano, and dried basil.
- Bring to a simmer over medium heat. Reduce heat to low and cook for about 30 minutes, stirring occasionally.
- Remove from heat. Add the baking soda. The sauce will fizz. Let the fizzing settle, then stir and taste. Adjust salt and seasoning as needed.
- Stir in fresh basil at this point if using. Serve over pasta or store for later use.
FAQs
Can I use fresh tomatoes instead of canned San Marzano?
Fresh tomatoes work but require peeling, seeding, and crushing before they can replace the canned version. The acid level of fresh tomatoes varies more than a certified can, which means the baking soda amount may need adjusting. Taste the sauce before adding the baking soda and add it in small increments, checking the flavor after each addition.
Does the baking soda change the flavor of the sauce?
A small amount of baking soda changes the chemistry without changing the flavor, provided the timing is right. The fizzing reaction neutralizes acid rather than adding any alkaline taste to the finished sauce. Start with 1 teaspoon, taste before adding more, and stop if the sauce begins to taste flat or soapy.
Are red pepper flakes safe to include on a low acid diet?
Red pepper flakes are listed as optional because capsaicin, the compound behind the heat, can trigger reflux in some people. Leaving them out keeps the sauce reflux-safe; the tomatoes, herbs, and aromatics provide enough complexity without added heat. If capsaicin is not a personal trigger, a small pinch adds background warmth that stays within the sauce’s low-acid profile.
What low acid chicken dish works well alongside this sauce?
This sauce works as a base for any dish that normally calls for tomato sauce, not just pasta. Spooning it over sautéed chicken or using it as a dipping base brings the same acid-controlled profile to a protein plate. A GERD-safe chicken stir fry on Savory Sides brings a different flavor direction without repeating the Italian profile.
What low acid soup pairs well with an Italian pasta dinner?
Most soups that pair naturally with pasta are tomato-based and carry as much acid as the sauce itself. Choosing a broth-based soup keeps the acid load down across the whole meal without changing the Italian feel of the table. A low acid chicken noodle soup on Savory Sides uses a clear broth that keeps the full meal acid-controlled.
