How to Make Black Garlic?
Black garlic is made by aging fresh garlic under controlled temperature and humidity for several weeks.
Unlike fresh garlic, black garlic has a dark color, soft texture, and naturally sweet and savory flavor. During controlled aging, the Maillard reaction helps develop the dark color and rich flavor of black garlic.
Making a few kilograms of black garlic is relatively simple. However, commercial black garlic production requires much better control over temperature, humidity, loading, and processing time.
So, how do you make black garlic on a commercial scale?
1. Select Fresh Garlic
The first step is choosing suitable fresh garlic.
Use firm and healthy garlic bulbs without obvious mold, rot, or serious mechanical damage. Garlic size and moisture content can also affect the final result.
Different garlic varieties may produce different flavors and textures. Therefore, commercial producers should test their local garlic before establishing a standard processing recipe.
Commonly processed garlic types include:
- White garlic
- Chinese garlic
- Single-clove garlic
- Multi-clove garlic
For commercial production, keeping the raw material relatively consistent can help improve batch-to-batch results.
2. Prepare the Garlic
Before processing, inspect the garlic and remove damaged bulbs.
The garlic can then be cleaned and prepared according to the production process. For whole-bulb black garlic, the bulbs are generally kept intact.
Proper preparation is important because damaged or unsuitable garlic may affect the quality of the finished product.
3. Load Garlic onto Trays
Place the prepared garlic bulbs evenly onto the fermentation trays.
Avoid excessive piling. Garlic needs a suitable processing environment so that heat and humidity can reach the product evenly.
For small batches, manual loading may be practical.
However, when processing hundreds of kilograms, stainless-steel carts with multiple trays can make loading and unloading much more efficient.
For example, a commercial machine such as the HGFM-1000 can be equipped with multiple fermentation carts and trays for large-batch production.
4. Control Temperature and Humidity
This is one of the most important steps in making black garlic.
Fresh garlic needs to remain in a controlled environment for an extended period. The producer needs to manage temperature, humidity, and processing time according to the garlic and desired final characteristics.
Temperature affects the rate of chemical changes during processing, while humidity influences moisture retention and the final texture.
The Maillard reaction contributes to the development of the dark color and complex flavors associated with black garlic.
For commercial production, stable conditions are important because large quantities of garlic are processed at the same time.
5. Allow the Garlic to Age
Black garlic cannot be produced in just a few hours.
A typical commercial processing cycle can take approximately 15–20 days, although the actual time varies according to:
- Garlic variety
- Bulb size
- Initial moisture content
- Temperature
- Humidity
- Loading conditions
- Desired color
- Desired texture
- Desired flavor
During this period, the garlic gradually changes from fresh garlic into black garlic.
The cloves become darker, softer, and sweeter as the process progresses.
What Happens to Garlic During the Process?
The transformation from fresh garlic to black garlic involves several changes.
Color
Fresh garlic gradually changes from white to brown and eventually to a deep dark color.
Texture
The firm texture of fresh garlic becomes soft, tender, and slightly sticky.
Flavor
The strong and pungent flavor of raw garlic becomes much milder.
Sweet, savory, tangy, and caramelized notes become more noticeable.
Aroma
The characteristic sharp garlic aroma decreases, while deeper and sweeter aromas develop.
These changes make black garlic very different from fresh garlic.
How Long Does It Take to Make Black Garlic?
A common black garlic processing cycle takes around 15–20 days.
However, there is no universal processing time for every type of garlic.
For example, larger bulbs may behave differently from smaller bulbs. Garlic with different moisture levels can also require different processing conditions.
Therefore, commercial producers should not rely only on a fixed number of days.
Instead, they should develop a processing recipe based on their own garlic and desired product quality.
What Temperature and Humidity Are Needed for Black Garlic?
There is no single temperature and humidity setting that works for every garlic variety and every production process.
Commercial producers usually establish their own parameters through testing.
The important point is to maintain stable and controllable conditions throughout the process.
A commercial black garlic machine should therefore provide:
- Adjustable temperature
- Adjustable humidity
- Stable heat distribution
- Reliable humidification
- Accurate monitoring
- Programmable processing time
This gives producers greater control when developing their own black garlic recipe.
Why Is Commercial Black Garlic Production More Difficult?
Making black garlic at home and producing it commercially are two very different things.
When production increases from a few kilograms to several hundred kilograms, controlling the processing environment becomes much more challenging.
Uneven Heat
A large quantity of garlic requires effective heat circulation. Poor circulation can result in different processing conditions in different areas of the chamber.
Uneven Humidity
Humidity can also vary inside a large chamber.
This can affect moisture retention and the final texture of the garlic.
Large-Scale Loading
Loading hundreds of kilograms manually can require significant time and labor.
Multiple trays and mobile fermentation carts can make this process easier.
Batch Consistency
Commercial customers expect consistent products.
If one batch is significantly different from another, maintaining a stable product quality becomes difficult.
Therefore, commercial black garlic production requires more than simply heating garlic.
How Does a Black Garlic Fermenting Machine Help?
A commercial black garlic fermenting machine creates a controlled environment for large-batch production.
Instead of relying on a small household appliance, producers can load a large quantity of garlic into a dedicated processing chamber.
The machine can control key parameters such as temperature, humidity, and processing time.
This helps producers establish a repeatable production process.
For businesses processing hundreds of kilograms per batch, equipment capacity also becomes important.
HGFM-1000 Commercial Black Garlic Fermenting Machine
The HGFM-1000 Commercial Black Garlic Fermenting Machine is designed for large-scale black garlic production.
It can process approximately 800–1,000 kg of fresh garlic per batch.
The machine features a 316 stainless-steel inner chamber and 304 stainless-steel outer panels. It is equipped with 8 stainless-steel fermentation carts and 240 trays for large-batch processing.
Main Features
- 800–1,000 kg fresh garlic capacity per batch
- 316 stainless-steel inner chamber
- 304 stainless-steel outer panels
- 8 stainless-steel fermentation carts
- 240 trays
- 4–6 high-temperature-resistant motors
- 6–9 sets of heating tubes
- 4 sets of dual-mode humidification systems
- Digital control panel
- Adjustable temperature and humidity
- Designed for commercial production
The machine has a rated power of 16 kW, while average operating power is approximately 2.9–4 kW, depending on operating conditions.
Can You Make Black Garlic from Different Garlic Varieties?
Yes.
Black garlic can be produced from different types of fresh garlic.
For example, commercial producers may process:
White garlic
A common raw material for black garlic production.
Chinese garlic
Suitable for commercial processing and value-added garlic products.
Single-clove garlic
Its small size and unique structure can create a distinctive finished product.
Multi-clove garlic
Whole bulbs can be processed while keeping the cloves together.
However, different raw materials may require adjustments to the processing parameters.
This is why an adjustable temperature and humidity system is valuable for commercial producers.
Is Black Garlic Production a Good Way to Add Value to Garlic?
For garlic growers and processors, black garlic can provide another way to use fresh garlic.
Instead of selling all garlic as a fresh commodity, part of the harvest can be processed into a value-added food product.
Black garlic can be sold as:
- Whole black garlic bulbs
- Peeled black garlic cloves
- Ready-to-eat snacks
- Food ingredients
- Sauces and seasonings
- Specialty food products
This can help garlic businesses diversify their product range and target different markets.
From Fresh Garlic to Commercial Black Garlic
The basic process is simple:
Fresh Garlic → Preparation → Tray Loading → Controlled Temperature & Humidity → Aging → Black Garlic
The challenge is maintaining stable conditions throughout the entire process.
For small-scale production, a small machine may be sufficient.
For commercial producers processing 800–1,000 kg per batch, a dedicated black garlic fermenting machine provides the capacity and process control needed for larger production.
Frequently Asked Questions
How long does it take to make black garlic?
A typical processing cycle takes approximately 15–20 days, although the actual time depends on the garlic and processing parameters.
Can I use whole garlic bulbs?
Yes. Whole garlic bulbs are commonly used for black garlic production.
Can I process single-clove garlic?
Yes. The HGFM-1000 can process both single-clove and multi-clove garlic.
What temperature is used to make black garlic?
The appropriate temperature depends on the garlic variety, moisture content, desired texture, and production process. Commercial producers should establish their own parameters through testing.
Does humidity matter when making black garlic?
Yes. Humidity affects moisture retention and can influence the texture and final quality of black garlic.
Can I change the temperature and humidity?
Yes. The HGFM-1000 provides adjustable temperature and humidity control, allowing producers to develop different processing recipes.
How much garlic can HGFM-1000 process?
The HGFM-1000 can process approximately 800–1,000 kg of fresh garlic per batch.
Is the machine suitable for commercial production?
Yes. It is designed specifically for large-batch and commercial black garlic production.
Start Your Commercial Black Garlic Production
Making black garlic requires time, controlled conditions, and a repeatable process.
For businesses looking to process large quantities of fresh garlic, the HGFM-1000 Commercial Black Garlic Fermenting Machine provides a large-capacity solution with stainless-steel construction and adjustable temperature and humidity control.
Have questions about black garlic production?
Tell us your garlic type, required capacity, and target production, and HUAYO GARLIC can help you choose a suitable solution.
