Vermicular Review: Oven Pot 2.0, Japanese Precision Meets Non-Toxic Cookware

Vermicular is one of those brands that most American home cooks have never heard of, but once you learn what they are doing with enameled cast iron, it is hard to stop thinking about it. This Japanese cookware company has been casting iron since 1936 at their own foundry in Nagoya, Japan, and their approach to a dutch oven is unlike anything coming out of France or the United States.

I have been tracking Vermicular since I started building out the cookware cluster on Heal Nourish Grow, and when they agreed to a partnership, I ordered the Oven Pot 2.0 in the 26cm (5.9 quart) size with the Self-Standing Lid in Matte Chamomile Yellow. This is their largest size and the one most directly comparable to a standard 6-quart dutch oven from Le Creuset or Lodge.

What makes Vermicular different from every other enameled cast iron pot on the market comes down to three things: a precision-machined lid that seals to within 0.01mm for waterless cooking, a proprietary graphite cast iron that is 30% lighter than the original, and an instant evaporation enamel coating that changes how the pot handles moisture. I will break down all of it in this review.

Hands-on cooking tests and video are coming soon. I will be updating this Vermicular review with personal testing results, photos and a companion YouTube video as I put the Oven Pot 2.0 through real kitchen use. For now, this review covers the specs, the technology behind the design, the safety profile, how it compares to other dutch ovens and who this pot is best suited for.

Disclaimer: Vermicular provided product for this review. All opinions are my own and based on personal testing and research. This post contains affiliate links. If you purchase through these links, we may earn a commission at no additional cost to you. Read our full disclosure here.

What Is Vermicular?

Vermicular is a family-owned Japanese cookware brand founded by brothers Kunihiro and Tomoharu Hijikata. The brothers run the Aichi Dobby foundry in Nagoya, Japan, where their family has been working with cast iron since 1936. That gives them over 85 years of cast iron expertise, though the Vermicular cookware line itself is more recent, launching first in Japan before expanding to the US market.

The brand name comes from “vermicular graphite iron,” which refers to the specific type of cast iron alloy they use. Unlike the standard gray cast iron used by brands like Lodge, Le Creuset and Staub, Vermicular uses a proprietary graphite cast iron blend that can be machined thinner while maintaining durability. This is a significant technical distinction that affects the weight, heat performance and feel of their cookware.

In Japan, Vermicular has a strong following. They operate Vermicular Village in Nagoya, which includes a restaurant, bakery and cooking class facility. They also have a dedicated recipe app (currently only in Japanese) with hundreds of user-submitted recipes. The US market is still in the early stages, which means very few English-language reviews exist for their products. That is part of why I wanted to cover this brand in depth.

Their product line includes the Oven Pot (original and 2.0), the Musui-Kamado (a cast iron pot with companion induction cooker), frying pans, oven-safe skillets and the Egg and Toast Pan. The Oven Pot 2.0 is their latest and most refined piece and the focus of this review.

Oven Pot 2.0 Specs at a Glance

Here are the key specifications for the 26cm Oven Pot 2.0 that I am testing.

For comparison, a Le Creuset 5.5-quart Signature Round Dutch Oven weighs approximately 14.9 pounds and a Lodge 6-quart enameled dutch oven weighs about 14 pounds. At 9 pounds, the Vermicular 26cm Oven Pot 2.0 is noticeably lighter than both, which is a meaningful difference when you are lifting a full pot out of the oven.

The Precision Seal: Waterless Cooking Explained

This is the feature that makes Vermicular genuinely different from every other dutch oven I have researched.

The contact area between the pot and lid on the Oven Pot 2.0 is hand-machined at the Aichi Dobby foundry to achieve a fit with less than 0.01mm of variance. To put that in perspective, a human hair is about 0.07mm thick, so we are talking about a tolerance roughly seven times tighter than the width of a single hair. Each pot and lid are machined as a matched pair, which is why the lid that ships with your pot is specifically fitted to that exact pot.

This precision seal is what enables waterless cooking, which Vermicular calls “musui” (the Japanese word means “without water”). The idea is simple but the execution is not: you place vegetables or other ingredients in the pot with just a small amount of oil, cover it, and cook on low heat. The seal is tight enough that the natural moisture from the ingredients turns to steam, circulates within the pot and essentially braises the food in its own juices.

The result is food with more concentrated flavor and better nutrient retention because you are not diluting anything with added water or broth. From a whole-foods-first perspective, this is particularly appealing. You are cooking with just the ingredients themselves and the heat. Nothing else.

A practical example: you can fill the pot halfway with chopped onions, mushrooms, carrots, potatoes, a bay leaf and some salt and pepper, turn the heat to low, and in about 45 minutes the natural moisture from the vegetables creates a rich, flavorful broth without adding a drop of water. The vegetables come out tender and intensely flavored in a way that is genuinely hard to replicate with conventional braising.

No other enameled cast iron pot I have seen claims this level of precision in the lid fit. Le Creuset and Staub both make excellent lids, but they are not machined to the same tolerances. Lodge dutch oven lids are noticeably looser. The Vermicular seal is in a different category entirely.

Graphite Cast Iron: Why Vermicular Is Lighter

Most enameled cast iron cookware is made from standard gray cast iron, which is a well-understood alloy of iron and carbon. Vermicular uses a proprietary blend they call vermicular graphite iron, which incorporates a mix of iron and small amounts of 13 other metals to produce a material that is more durable and can be machined thinner than standard cast iron.

The Oven Pot 2.0 achieves wall thickness as thin as 1.8 millimeters. That is roughly half the thickness of most dutch ovens on the market. According to Vermicular, this thin-wall casting is “an achievement unprecedented in the industry,” and it plays directly to the strengths of Japanese precision metal casting traditions that date back thousands of years.

The practical benefit is significant. The 26cm Oven Pot 2.0 weighs 9 pounds compared to roughly 14 to 15 pounds for a comparably sized Le Creuset or Lodge. That is a 5 to 6 pound difference you will feel every time you move the pot from stovetop to oven, carry it to the table for serving or wash it in the sink. This may be one of the most important points of this Vermicular review…cast iron is heavy!

But lighter does not mean less effective. The thinner walls actually improve thermal efficiency. Because there is less mass to heat up, the pot reaches cooking temperature faster and responds more quickly to heat adjustments. Vermicular claims this cuts both preheating and cooking times. The tradeoff is that it may not hold residual heat quite as long as a thicker pot after you remove it from the heat source, though the cast iron still retains heat far better than stainless steel or aluminum.

Vermicular Review: Instant Evaporation Technology

The Oven Pot 2.0 uses a proprietary hydrophilic enamel coating that Vermicular calls their “instant evaporation technology.” The enamel causes water to spread into a thin film across the cooking surface rather than beading up in droplets. This thin film evaporates almost immediately, with Vermicular claiming it eliminates excess moisture in as little as three seconds.

Why does this matter? When you sear meat or stir-fry vegetables, moisture is the enemy of browning. Water on the surface of the food or the pan keeps the temperature below 212 degrees F, which prevents the Maillard reaction that creates that deep, caramelized flavor. By rapidly eliminating surface moisture, the instant evaporation enamel allows the pot to function more like a high-performance skillet for searing and stir-frying, while still being able to switch to slow braising and waterless cooking when you put the lid on.

This dual capability is what makes the Oven Pot 2.0 unusually versatile for an enameled cast iron pot. Most dutch ovens are best at low and slow cooking. The Vermicular wants to handle fast cooking techniques as well.

The Self-Standing Lid

The Oven Pot 2.0 comes in two lid options: a traditional Round Knob with Lid Stand, or the Self-Standing Lid (also called the Standing Handle) that I chose. The Self-Standing Lid has an integrated handle designed so you can stand the lid upright on your counter or stovetop when you remove it. This keeps the hot, wet lid off your cooking surface and frees up counter space.

It sounds like a small detail, but anyone who has fumbled around with a heavy, hot, dripping dutch oven lid while trying to stir the pot with the other hand will appreciate the thoughtfulness of this design. The lid stands securely and the handle stays relatively cool to the touch.

Non-Toxic Safety Profile

For readers of Heal Nourish Grow, the safety profile is likely as important as the cooking performance. Here is what I have verified about the Vermicular Oven Pot 2.0.

Vermicular states that all of their cookware is free from toxic materials, including heavy metals like lead and cadmium. The enamel coating does not contain PFAS, PTFE, PFOA or any synthetic non-stick chemicals. This puts it in the same safety category as other high-quality enameled cast iron when it comes to the concerns I covered in my article on enameled cast iron health risks.

The three-layer enamel coating is applied over the graphite cast iron body, creating the same type of vitrified glass barrier that makes enameled cast iron one of the safest cookware materials available. As I explain in my guide on what PFAS are and why they matter, the enamel surface is fundamentally different from the synthetic coatings used in traditional non-stick pans. There are no forever chemicals involved.

One detail worth noting: to achieve the precision seal, the contact area where the pot and lid meet is left uncoated. This means the rim of the pot and lid are exposed cast iron, which can potentially rust if not dried thoroughly after washing. This is not a safety concern in terms of toxicity (iron is not harmful at these trace levels for most people), but it does require a small amount of extra care. I cover this in the care and maintenance section below.

For a deeper look at how enameled cast iron compares to other non-toxic cookware options, see my full PFAS-free cookware guide.

Cooking Techniques: What the Oven Pot 2.0 Does Best

The Oven Pot 2.0 is designed to handle a wider range of cooking techniques than a typical dutch oven. Here are the main applications Vermicular highlights, all of which I plan to test firsthand.

Waterless cooking (musui). The signature technique. Add vegetables with a small amount of oil, cover with the precision-sealed lid, and cook over low heat. The ingredients cook in their own moisture, concentrating natural flavors and preserving nutrients. This is Vermicular at its most distinctive.

Steam-roasting. Preheat the pot, sear one side of your vegetables to build color, then cover and let the steam from the sealed lid finish cooking the interior. The result is food that is caramelized on the outside and tender and juicy on the inside. This is a technique that combines dry and moist heat in a single step.

Searing and stir-frying. The instant evaporation enamel removes surface moisture rapidly, allowing the pot to reach high enough surface temperatures for proper browning. Vermicular recommends preheating for about 2 minutes over medium heat before adding oil. For stir-frying, the fast heat distribution produces lighter, fluffier fried rice and crisp vegetables.

Braising and slow cooking. The precision seal keeps moisture locked in during long, slow cooks. This is the traditional dutch oven territory where all enameled cast iron excels, and the Vermicular handles it with the added benefit of tighter moisture retention.

Bread baking. With oven-safe temperatures up to 570 degrees F, the Oven Pot 2.0 can handle bread baking. The sealed lid traps steam during the initial phase of baking, which helps develop a crisp crust.

Rice cooking. This is a very popular use in Japan. The precision seal and even heat distribution produce restaurant-quality rice on the stovetop. Vermicular includes rice cooking instructions with the pot and the results are frequently praised in user reviews.

Hands-On Testing (Coming Soon)

This section will be updated with personal cooking tests, photos and a companion YouTube video once I have spent adequate time with the Oven Pot 2.0 in my kitchen.

I plan to test the following and will report back on each:

• Waterless vegetable cooking (the musui technique with onions, mushrooms and root vegetables)
• Steam-roasting vegetables to test the caramelized-outside, tender-inside claim
• Searing chicken thighs and finishing with a braise
• Making a batch of my favorite soups to test heat distribution and flavor concentration
• Bread baking to evaluate crust development
• Weight and handling compared to my other cookware
• Cleaning and care after various cooking methods

Check back soon for the full testing results, or subscribe to the Heal Nourish Grow newsletter to be notified when the update goes live.

Vermicular vs Le Creuset

This is probably the comparison most people want to see, since Le Creuset is the name most associated with premium enameled cast iron.

Weight. Vermicular 26cm (5.9 qt) weighs 9 lbs. Le Creuset Signature 5.5 qt weighs approximately 14.9 lbs. That is a 40% weight reduction, which is the single most noticeable difference in daily use.

Lid seal. Vermicular's hand-machined precision seal (less than 0.01mm variance) is significantly tighter than Le Creuset's sand-cast lid fit. Le Creuset lids fit well, but they are not designed for the airtight waterless cooking that Vermicular enables.

Heat performance. Vermicular's thinner walls (1.8mm vs Le Creuset's thicker construction) heat up faster and respond more quickly to temperature changes. Le Creuset's heavier mass retains heat longer after being removed from the heat source. Both distribute heat evenly.

Enamel durability. Le Creuset is widely regarded as having some of the most chip-resistant enamel in the industry, with decades of proven longevity. Vermicular's 2.0 enamel is newer and less tested over time. Some reviews of the original Oven Pot noted staining after a single use, though the 2.0 features a redesigned enamel coating.

Design philosophy. Vermicular embodies minimalist Japanese aesthetics with clean lines, matte finishes and contemporary styling. Le Creuset is the colorful, heritage French country look that has become iconic in American kitchens. Both are beautiful, but they appeal to different sensibilities.

Price. A Vermicular 26cm Oven Pot 2.0 starts around $355. A Le Creuset Signature 5.5 qt runs $420 to $500 at retail. Vermicular is slightly less expensive, though both are premium-priced cookware. For a much more budget-friendly enameled cast iron option, see my upcoming Lodge dutch oven review.

Safety. Both brands are free from PFAS and PTFE. Both comply with FDA and Prop 65 standards. Vermicular explicitly states their products are free from lead and cadmium. Le Creuset has disclosed the presence of cadmium pigment on the exterior of some colored products, though their interior cooking surfaces meet Prop 65 leach testing standards. For a full breakdown of these safety considerations, see my enameled cast iron health risk guide.

Vermicular vs Lodge

Lodge is the value end of the enameled cast iron market and a brand I am also testing for this cookware series. Here is how they compare.

Price. Lodge 6-quart enameled dutch oven runs $70 to $100. Vermicular 26cm Oven Pot 2.0 starts around $355. That is roughly a 3.5x to 5x price difference.

Weight. Lodge 6 qt weighs approximately 14 lbs. Vermicular 26cm weighs 9 lbs. Lodge is noticeably heavier.

Lid fit. Lodge lids are functional but not precision-machined. They allow more steam to escape than both Le Creuset and especially Vermicular. For waterless cooking, the Lodge is not a realistic option.

Manufacturing. Lodge's enameled line is made in China (their bare cast iron is made in the USA). Vermicular is made in their own foundry in Japan. For shoppers who prioritize knowing exactly where and how their cookware is manufactured, Vermicular offers more transparency.

Who it is for. Lodge is the right choice if you want dependable enameled cast iron at a price that does not require a second thought. Vermicular is for the person who values precision engineering, lighter weight, waterless cooking capability and is willing to invest accordingly. Both are non-toxic and both will make great food.

All Sizes and Colors

The Oven Pot 2.0 is available in four sizes, each with two lid options (Self-Standing Lid or Round Knob with Lid Stand).

Color options include eight choices across matte and glossy finishes: Sea Salt White, Natural Beige, Matte Chamomile Yellow (the one I ordered), Matte Himalayan Pink, Deep Ocean Blue, Matte Charcoal, and others. There is also a Premium Black Limited Edition with champagne-gold accents.

Vermicular Review: Care and Maintenance

Vermicular recommends hand washing the Oven Pot 2.0. The enamel cleans easily with warm soapy water and a non-abrasive sponge. Avoid metal cooking utensils and abrasive cleaners as these can damage the enamel surface over time.

The one important care detail specific to Vermicular: because the rim where the pot and lid meet is left uncoated to achieve the precision seal, this area is susceptible to rust. After every wash, dry the rim of the pot and lid thoroughly. If rust does develop, it can be cleaned off with mild dish soap and a gentle scrub. This is a minor maintenance step but it is non-negotiable if you want to keep the pot in good condition.

The Oven Pot 2.0 is oven safe up to 570 degrees F. It should not be placed in the dishwasher, used over open flames or subjected to sudden extreme temperature changes (do not take it from the freezer directly to a hot burner).

Who Should Buy the Vermicular Oven Pot 2.0

You should consider the Vermicular if you care about non-toxic cookware and want the cleanest possible materials, you are interested in waterless cooking and nutrient preservation, you value lighter weight cookware (especially if you have wrist or shoulder issues), you appreciate Japanese precision engineering and minimalist design, or you want a dutch oven that can genuinely sear and stir-fry as well as braise.

You might want to look elsewhere if you are on a tight budget (Lodge offers excellent enameled cast iron for a fraction of the price), you prefer a brand with a long established US track record and wider retail availability, you want something truly dishwasher safe, or you do not care about the waterless cooking feature and just need a reliable braising pot.

The Bottom Line

The Vermicular Oven Pot 2.0 is not just another dutch oven. The precision-machined lid seal, the lightweight graphite cast iron, and the instant evaporation enamel represent a fundamentally different approach to what enameled cast iron can do. It is designed for people who think about their food at every level, from the ingredients they choose to the cookware they use.

At the premium end of the price spectrum, Vermicular is competing with Le Creuset and Staub, but offering capabilities neither of those brands can match, particularly when it comes to waterless cooking and weight reduction. The non-toxic safety profile is strong, with no PFAS, no lead, no cadmium and transparent manufacturing in their own Japanese foundry.

I will be updating this review with hands-on cooking results and a video walkthrough once I have had enough time with the pot to give it a thorough evaluation. Stay tuned.