10 Best Natto Makers for Fermented Foods

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If you love the earthy, umami-rich taste of natto or want to explore the world of fermented foods, a dedicated natto maker can be a game-changer. These appliances take the guesswork out of fermentation, giving you consistent results batch after batch.

This guide reviews ten versatile fermenters that can handle natto, yogurt, and more. Whether you’re a beginner or a seasoned fermenter, you’ll find the right machine to fit your kitchen and your fermentation goals.

Quick Comparison

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DiDimo Yogurt Maker with Timer and Stainless Steel Liner

Yogurt Maker, Greek Yogurt Maker with Timer Control and Strainer, Yogurt Maker Machine with Stainless Steel Liner, Electric Portable Yogurt Maker for Yogurt, Greek Yogurt, Cheese, Natto (White)

Brand: DiDimo

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A reliable, multifunctional fermenter for daily natto and yogurt.

The DiDimo yogurt maker is a multifunctional fermenter that handles yogurt, Greek yogurt, natto, and cheese. Its stainless steel fermentation tank is high-temperature resistant and stable, ensuring safe and non-toxic fermentation. The included strainer helps you achieve that thick, creamy Greek-style texture you love.

With adjustable time and constant temperature control, you can tailor the fermentation process to your preferences. The 1-quart stainless steel liner is easy to clean and durable, making this a practical choice for everyday use. If you want a simple, reliable machine for multiple ferments, this one delivers.

✓ Pros

  • Stainless steel liner
  • Multifunctional
  • Easy to clean
✗ Cons

  • Small capacity
  • Basic controls

FermentPro 12.8L Smart Fermentation Machine with Precision Control

FermentPro 12.8L Smart Yogurt Maker Machine & Fermentation Kit, Kombucha, Kimchi, Natto, tempeh, Sourdough Maker, Temp Control 50-115°F, Timer 1 Hr -30 Day, Post-Ferment Cooling

Brand: FermentPro

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A professional-grade fermenter for serious home fermenters.

The FermentPro is a serious fermentation powerhouse with a spacious 12.8L interior. It maintains a precise temperature range of 50°F to 115°F, with advanced heating and cooling for consistent results. Developed by a cancer doctor with a PhD in microbiology, this machine is designed to support probiotic-rich fermentation.

Beyond natto, it handles kombucha, kimchi, tempeh, sauerkraut, and sourdough. The timer ranges from 1 hour to 30 days, and post-ferment cooling helps preserve your creations. If you ferment in bulk or experiment with many foods, this is a top-tier choice.

✓ Pros

  • Large 12.8L capacity
  • Precise temp control
  • Post-ferment cooling
✗ Cons

  • Large footprint
  • Higher price

TANICA YOGURTiA Fermented Food Machine with Precise Control

[TANICA] YOGURTiA Yogurt Maker & Fermented Food Machine – Precise Temperature Control (1°F/1°C Increments) for Consistent Results, 77-158°F (25-70°C), 100-240V, Made in Japan, 2 Glass Pots, Timer

Brand: TANICA

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A precision fermenter for those who demand exact results.

The TANICA YOGURTiA is a Japanese-made fermenter with microcomputer-controlled temperature settings from 77°F to 158°F in 1° increments. This precision ensures consistent fermentation, whether you’re making natto, yogurt, or cheese. It comes with two glass pots and a recipe book to get you started.

It operates on worldwide voltage (100-240V) with a US/Japan Type A plug, so you may need a simple adapter. The glass pots are elegant and easy to clean, though they require careful handling. If you value precision and quality, this machine is worth the investment.

✓ Pros

  • 1° temperature control
  • Made in Japan
  • Includes glass pots
✗ Cons

  • Glass pots fragile
  • Adapter needed

DiDimo 1.37QT Automatic Greek Yogurt Machine for Home

DiDimo Yogurt Maker, 1.37QT Automatic Greek Yogurt Machine for Home Kitchen

Brand: DiDimo

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A compact, efficient fermenter for small households.

This DiDimo fermenter crafts Greek yogurt, natto, and rice wine with a smart 360 constant temperature system. The 1.3L stainless steel inner bowl is durable, odorless, and easy to clean, making it perfect for a week’s meal prep. It operates at just 20W, so it’s energy-efficient and cost-saving.

The compact design fits neatly on your countertop without taking up too much space. With even fermentation and consistent results, this machine is ideal for health enthusiasts who want probiotic-rich foods. It’s a straightforward, no-fuss option for home kitchens.

✓ Pros

  • Energy efficient
  • Stainless steel bowl
  • Compact design
✗ Cons

  • Limited capacity
  • No timer display

MLGB 6L Black Garlic Fermenter with Temperature Control

MLGB 6L Black Garlic Fermenter,Yogurt Maker with Adjustable Temperature & Time Control,Kimchi machine,Sweet Rice Wine Maker Full Automatic,Natto Maker,FCC UL Listed

Brand: MLGB

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A versatile fermenter ideal for black garlic enthusiasts.

The MLGB fermenter is a versatile 6L machine that excels at making black garlic, yogurt, kimchi, sweet rice wine, and natto. It features smart constant-temperature control with all-around heating, including the top cover, to prevent condensation. You can ferment up to 2.2lb of garlic per batch.

Working times vary: 48 hours for sweet wine, 7-12 days for black garlic, and 8 hours for yogurt. The FCC and UL listings ensure safety and reliability. If you love black garlic and other ferments, this machine is a solid workhorse.

✓ Pros

  • Large 6L capacity
  • All-around heating
  • UL listed
✗ Cons

  • Long fermentation times
  • Bulky design

YDBMY Automatic Natto Fermenting Machine with LCD Display

Automatic Natto Fermenting Machine, 1.5L Yogurt Natto Maker and Sourdough Bread Making Kit with Constant Temperature Control for Home, Organic Yogurt, Cheese, and Natto

Brand: YDBMY

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A user-friendly fermenter with clear controls and solid build.

The YDBMY fermenter is a 1.5L machine that makes yogurt, natto, and rice wine with intelligent time control and an easy-to-read LCD display. The stainless steel construction ensures food-grade safety and durability, while the professional air circulation system promotes consistent fermentation.

You can set precise fermentation times and monitor progress conveniently. The simple operation means you can just add your ingredients and let the machine work. If you’re looking for a straightforward, reliable fermenter with a modern touch, this is a great pick.

✓ Pros

  • LCD display
  • Stainless steel
  • Air circulation
✗ Cons

  • Small capacity
  • Limited temperature range

Yosoo Smart Fermenter with Precise Temperature Control

Natto Fermenter Large Capacity Smart Yogurt Maker, Square Shape, Precise Temperature Control, Automatic Fermenter for Home Use, 1.6L, Supports Yogurt, Natto, Rice (US Plug 110~240V)

Brand: Yosoo

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A smart fermenter that simplifies the fermentation process.

The Yosoo smart fermenter automates the fermentation process from start to finish, saving you time and energy. It supports yogurt, enzymes, rice wine, and natto, with precise temperature control for optimal results. The compact square shape is space-saving and fits well on any countertop.

With intelligent fermentation technology, you don’t need to supervise the process manually. The 1.6L capacity is suitable for small to medium batches. If you want a set-and-forget fermenter that handles multiple foods, this is a convenient choice.

✓ Pros

  • Automated process
  • Precise temp control
  • Space-saving square shape
✗ Cons

  • Small capacity
  • No cooling function

LKSNBDR 1L Electric Yogurt Maker with Stainless Steel Pot

LKSNBDR 1L/1 Qt Electric Yogurt Maker, Homemade DIY Yogurt Maker, Automatic Constant Temperature Yoghurt Machine with Stainless Steel Inner Pot for Used to Make Yogurt, Rice Wine, Natto

Brand: LKSNBDR

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A compact, portable fermenter for occasional use.

The LKSNBDR yogurt maker is a compact 1L machine that makes fresh, additive-free yogurt with higher probiotic content than store-bought versions. Simply add milk and starter culture, plug in, and let it do the rest. The clear lid lets you watch the transformation.

It’s lightweight at just 0.66 lbs, making it ideal for travel or small kitchens. Beyond yogurt, it also prepares rice wine and other ferments. If you want a portable, hassle-free fermenter, this is a great budget-friendly option.

✓ Pros

  • Lightweight
  • Clear lid
  • Versatile uses
✗ Cons

  • Very small capacity
  • No temperature control

Ann Katy Automatic Yogurt Maker with Adjustable Timer

Ann Katy Automatic Yogurt Maker Machine for Home with Adjustable Timer

Brand: Ann Katy

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A convenient fermenter with individual serving jars.

The Ann Katy yogurt maker features a 1.2L stainless steel inner pot and five glass jars, providing even heat distribution for consistent results. The adjustable timer lets you customize fermentation time to achieve your preferred texture and flavor. It’s a versatile probiotic maker that also handles natto.

Making yogurt at home saves money and reduces food waste. The durable design ensures long-lasting performance. If you appreciate having multiple jars for individual servings, this machine is a practical addition to your kitchen.

✓ Pros

  • Five glass jars
  • Adjustable timer
  • Stainless steel pot
✗ Cons

  • Bulky with jars
  • Glass jars fragile

DiDimo 1.37QT Automatic Greek Yogurt Machine with Glass Bowl

DiDimo Yogurt Maker, 1.37QT Automatic Greek Yogurt Machine with Glass Bowl

Brand: DiDimo

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A reliable fermenter with a glass bowl for pure taste.

This DiDimo fermenter is a 3-in-1 machine that crafts Greek yogurt, natto, and rice wine. It features a 360 constant temperature system and an adjustable 24-hour timer with auto shut-off for set-and-forget convenience. The 1.3L glass bowl is durable, odorless, and easy to clean.

Operating at just 20W, it’s energy-efficient and compact. The glass bowl is suitable for a week’s meal prep or sharing with family. If you prefer glass over plastic for fermentation, this is an excellent choice.

✓ Pros

  • Glass bowl
  • 24-hour timer
  • Energy efficient
✗ Cons

  • Glass can break
  • Small capacity

Buyer’s Guide: What to Consider

Choosing the right natto maker depends on your fermentation goals, kitchen space, and budget. Consider the following factors to find a machine that fits your lifestyle and delivers delicious results every time.

  • Temperature Control: Look for a machine with precise temperature settings, ideally in 1° increments, to ensure optimal fermentation for natto. Some models offer a wide range, while others have fixed settings. Choose based on your needs.
  • Capacity: Consider how much natto you want to make at once. Small 1L machines are great for personal use, while larger 6L or 12.8L models suit families or batch fermenting. Ensure the capacity matches your consumption.
  • Material: Stainless steel and glass are preferred for fermentation because they are durable, odorless, and easy to clean. Plastic may retain odors and is less hygienic. Check the inner pot material before buying.
  • Ease of Use: Features like timers, LCD displays, and automatic shut-off simplify the process. A clear lid allows you to monitor progress. Choose a machine with controls that you find intuitive and convenient.
  • Versatility: Many natto makers also handle yogurt, cheese, rice wine, and even black garlic. If you want to experiment with different ferments, look for a multifunctional machine with adjustable settings.

Conclusion

Finding the best natto maker comes down to your specific needs. For precise control, the TANICA YOGURTiA is unmatched. If you need large capacity, the FermentPro is a powerhouse. Budget-conscious buyers will appreciate the LKSNBDR or DiDimo models.

No matter which you choose, making natto at home is rewarding and healthy. We hope this guide helps you find the perfect fermenter for your kitchen.

Erica Steven Author
Co-Founder and Content Manager at 

Erica Steven is the founder and lead writer of WorstBrands, a site dedicated to providing honest and trustworthy reviews about outdoor gear and fashion products.

With a passion for exploring the great outdoors and staying up to date on the latest fashion trends, Erica uses her expertise to provide valuable insights into the products that matter most to her readers.

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