Is Muir Glen Tomatoes Clean?

The Short Answer

Muir Glen is a "better-than-conventional" option that falls short of being truly clean.

They get the basics right: USDA Organic, Non-GMO, and steam peeled. However, they rely on a vinyl-based can liner (PVC type) rather than cleaner polyester enamels or glass. Most concerning is a January 2026 Prop 65 notice alleging unsafe lead levels in their diced tomato products.

If you are strictly avoiding plastics or heavy metals, switch to glass-jarred brands like Is Jovial Pasta Clean|Jovial or Bionaturae.

Why This Matters

Lead is a cumulative neurotoxin.

There is no "safe" level of lead for children. In early 2026, consumer protection groups filed a 60-Day Notice of Violation against Muir Glen, alleging their products expose consumers to lead without a warning label. This suggests recent batches may have testing issues. Heavy Metals In Spices

"BPA-Free" doesn't mean non-toxic.

Muir Glen swapped BPA for a vinyl (PVC) liner. Vinyl liners can release vinyl chloride (a carcinogen) and often contain phthalates to make the plastic flexible. They traded one hormone disruptor for another potentially toxic plastic. Is Bpa Free Lining Safe

Citric Acid isn't just lemon juice.

The "citric acid" in Muir Glen is manufactured from corn mold (Aspergillus niger). While it's organic, it can trigger reactions in those with severe corn allergies or mold sensitivities. Citric Acid In Canned Tomatoes

What's Actually In Muir Glen

The ingredient list is short, but the additives matter.

Organic Tomatoes — Grown in California's San Joaquin Valley.
Organic Tomato Juice — Used as the packing medium.
Citric Acid — A preservative derived from fermented corn. Used to regulate acidity for canning safety.
Calcium Chloride — A firming agent. It keeps diced tomatoes from turning into mush, but it's an unnecessary additive if you want pure tomatoes.
Sea Salt — Added for flavor (unless you buy "No Salt Added").

What to Look For

Green Flags:

Steam Peeled — They use steam to remove skins, not lye (sodium hydroxide), which is common in non-organic brands.
USDA Organic — No synthetic pesticides or glyphosate used in the fields. Glyphosate In Oats
Non-GMO Project Verified — Third-party verification for their corn-derived ingredients.

Red Flags:

Vinyl Can Liner — Uses a "food-grade vinyl" lining that may leach phthalates.
Prop 65 Warning — Active legal notice regarding lead content (2026).
Additives — Contains both citric acid and calcium chloride, which aren't found in premium brands.

The Best Options

If you eat tomatoes daily, we recommend upgrading to glass jars or Tetra Paks to avoid can liner toxicity.

Brand	Product	Verdict	Why
Jovial	Whole Peeled (Glass)	✅	Gold Standard. Glass jar. No citric acid. No calcium chloride.
Bionaturae	Strained Tomatoes (Glass)	✅	Excellent. Glass jar. Just tomatoes.
Pomi	Chopped Tomatoes (Box)	⚠️	Acceptable. BPA-free carton (cleaner than cans), but not organic.
Muir Glen	Diced Tomatoes (Can)	⚠️	Caution. Vinyl liner + recent lead concerns.

The Bottom Line

1. Don't panic, but rotate. If you have Muir Glen in your pantry, you don't need to throw it out (unless you are pregnant or feeding an infant). But don't make it your daily staple.

2. Choose glass for acid. Tomatoes are highly acidic and eat away at can linings, increasing chemical migration. Buy tomatoes in glass whenever possible. Best Canned Tomatoes

3. Watch the news. The 2026 ownership change (sold by General Mills to Violet Foods) and the active lead notice mean this brand is in a transition period. Quality may fluctuate.

FAQ

Is Muir Glen BPA-free?

Technically yes, but there's a catch. They use a vinyl-based liner instead of BPA. While it complies with "BPA-free" regulations, vinyl (PVC) is considered one of the "dirty plastics" by environmental groups due to the release of vinyl chloride and phthalates. Bpa In Canned Foods

Do Muir Glen tomatoes contain lead?

Allegedly, yes. A Prop 65 Notice of Violation was filed in January 2026 alleging lead exposure from Muir Glen tomato products. This means third-party testing found lead levels exceeding California's strict safety thresholds.

Are Muir Glen tomatoes lye peeled?

No. Muir Glen uses steam peeling. This is the cleaner method. Many conventional brands use lye (caustic soda) to chemically burn the skins off, which creates toxic wastewater and can leave chemical residue.

Is the citric acid from corn?

Yes. Muir Glen confirms their citric acid is derived from corn fermentation. Even though it is organic, people with severe corn allergies should avoid it. Citric Acid In Canned Tomatoes

References (11)

🛒 Product Recommendations

✅

Organic Crushed Tomatoes in Amber Glass

Eden Foods

Packaged in proprietary amber glass to completely avoid light degradation and eliminate plastic can liners. The ingredient list is strictly organic tomatoes and puree, free of citric acid and calcium chloride.

Recommended

✅

Organic Diced Tomatoes (Glass Jar)

Jovial

Packed in completely BPA-free glass jars on the same day they are harvested in Italy. They skip the calcium chloride firming agent entirely and are one of the few brands certified glyphosate-free.

Recommended

✅

Organic Peeled Tomatoes

Favuzzi

Canned in Italy within two hours of harvest and utilizes a certified BPA-NI (non-intent) lining. Features a very short, clean ingredient list of just organic tomatoes, organic tomato juice, and citric acid.

Recommended

✅

Organic Tomato Paste (Glass Jar)

Bionaturae

Tomato paste is highly acidic and heavily degrades standard tin cans. Bionaturae's organic glass-jarred paste completely eliminates the risk of bisphenol and heavy metal leaching.

Recommended

✅

Organic Tomato Paste (Glass Jar)

Woodstock

An excellent glass-jar alternative to standard tomato paste cans. It is certified USDA Organic and contains a single ingredient: organic tomatoes, completely free of preservatives.

Recommended

✅

Organic Tomato Sauce (Glass Jar)

Muir Glen

While their canned lines currently carry a caution due to vinyl liners, Muir Glen's glass-jarred sauces are a fantastic alternative. They offer the same USDA Organic, Non-GMO Project Verified ingredients without the plastic liner risk.

Recommended

✅

Organic Rustic Tomato Basil Sauce

Lucini

A clean, glass-jarred sauce that reads like a homemade recipe (organic tomatoes, organic extra virgin olive oil, organic onions). Contains no added sugar or artificial preservatives, avoiding the pitfalls of many jarred sauces.

Recommended

👌

Organic Whole Peeled Tomatoes

Bianco DiNapoli

Founded by Chef Chris Bianco, these use USDA Organic California tomatoes and a BPA-NI can lining. While they contain citric acid, they importantly exclude calcium chloride, allowing the tomatoes to break down naturally in cooking.

Acceptable

👌

Organic Whole Peeled Tomatoes

365 by Whole Foods Market

A budget-friendly option that carries the USDA Organic certification (meaning no glyphosate) and uses a BPA-NI can lining. It does contain citric acid as a processing aid, keeping it from the top tier.

Acceptable

👌

Organic Fire Roasted Tomatoes

Amy's

Amy's was an early leader in moving away from standard bisphenol linings, opting for an FDA-approved acrylic and polyester lining instead. Combined with USDA Organic certification, this is a cleaner canned option.

Acceptable

👌

Organic Diced Tomatoes

Wild Planet

Strictly utilizes third-party tested BPA-NI cans and packages their organic tomatoes without any calcium chloride. This makes it a reliable mid-tier choice for those avoiding older epoxy resins.

Acceptable

⚠️

Whole Peeled Plum Tomatoes

Hunt's

While they proudly utilize a chemical-free 'FlashSteam' peeling method instead of lye, the tomatoes are conventionally farmed. This leaves consumers vulnerable to synthetic pesticide and fertilizer residues like glyphosate.

Use Caution

🚫

Stewed Tomatoes

Hunt's

These are highly processed compared to raw staples. They contain conventionally farmed tomatoes, calcium chloride for firming, citric acid, added sugar, and generic 'natural flavor'.

Avoid

🚫

Diced Tomatoes

Del Monte

Relies on conventionally grown tomatoes and utilizes both calcium chloride to artificially firm the fruit and citric acid to balance the pH, often used to mask lower-quality machine-harvested tomatoes.

Avoid

🚫

Diced Tomatoes

Great Value

A generic budget option that relies on standard conventional farming. Store-brand cans often use older epoxy linings to cut costs, and the recipe includes calcium chloride and added salt.

Avoid

🚫

Diced Tomatoes

Kroger

Similar to other conventional store brands, this product features calcium chloride and citric acid. The lack of organic certification means a higher risk of glyphosate exposure in the fields.

Avoid

🚫

Original Diced Tomatoes & Green Chilies

Ro-Tel

Contains conventional tomatoes, calcium chloride, and undisclosed 'natural flavors.' Natural flavors can legally be a proprietary blend containing chemical preservatives and synthetic solvents.

Avoid

⚠️

Organic Sun-Dried Tomatoes in Olive Oil

Bio Orto

Despite being organic, this product received a Prop 65 Notice of Violation in 2024/2025 from consumer protection groups alleging elevated levels of lead contamination, proving that even premium items require scrutiny.

Use Caution

🚫

Diced Tomatoes

Contadina

Uses conventional, non-organic tomatoes and relies on calcium chloride as a firming agent. The brand does not guarantee BPA-NI can linings across all its budget lines, raising plasticizer migration concerns.

Avoid

⚠️

San Marzano Style Chopped Tomatoes

Tuttorosso

The phrase 'San Marzano Style' is purely a marketing term used for standard plum tomatoes. These are conventional, non-organic tomatoes packed with calcium chloride and citric acid.

Use Caution

⚠️

Diced Tomatoes

Red Gold

While Red Gold has made strides in removing BPA from their linings, their standard products are not certified organic. The heavy use of conventional agricultural chemicals makes them a less ideal daily staple.

Use Caution

🚫

Premium Diced Tomatoes

S&W

Another conventional brand utilizing calcium chloride and citric acid. Highly acidic, conventionally farmed tomatoes in standard cans present a dual risk of pesticide residue and plasticizer migration.

Avoid

⚠️

Certified San Marzano Tomatoes (Can)

Cento

While their glass-jarred version is excellent, their classic canned version presents a risk. Over time, the high acid content of San Marzano tomatoes can break down even BPA-NI metal can linings, increasing the risk of plasticizer migration.

Use Caution

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Is Muir Glen Tomatoes Clean?

TL;DR

🔑 Key Findings

The Short Answer

Why This Matters

What's Actually In Muir Glen

What to Look For

The Best Options

The Bottom Line

FAQ

Is Muir Glen BPA-free?

Do Muir Glen tomatoes contain lead?

Are Muir Glen tomatoes lye peeled?

Is the citric acid from corn?

🛒 Product Recommendations

📖 Related Research

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Is Cheap Balsamic Vinegar Fake?

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Search GetCrunchy

TL;DR

🔑 Key Findings

The Short Answer

Why This Matters

What's Actually In Muir Glen

What to Look For

The Best Options

The Bottom Line

FAQ

Is Muir Glen BPA-free?

Do Muir Glen tomatoes contain lead?

Are Muir Glen tomatoes lye peeled?

Is the citric acid from corn?

🛒 Product Recommendations

📖 Related Research

Is Apple Cider Vinegar Actually Healthy?

Is Cheap Balsamic Vinegar Fake?

Is Caramel Color in Balsamic Vinegar Safe?

More about Pantry Staples