Garlic Storage Rooms: 7 Proven Cold Storage Essentials

Garlic Storage Rooms are specially designed storage environments that help preserve garlic quality after harvest, extend shelf life, and reduce post-harvest losses. Proper temperature, humidity, ventilation, air circulation, and hygiene conditions are essential for maintaining the commercial value of garlic throughout the storage period.

Garlic is a high-value agricultural product that can be stored for extended periods when the correct conditions are provided. However, inappropriate storage conditions may result in sprouting, mold growth, decay, softening, moisture loss, and reduced commercial quality.

For this reason, professionally designed Garlic Storage Rooms, garlic cold storage facilities, drying rooms, and controlled storage systems are important for producers, exporters, agricultural cooperatives, packaging facilities, and commercial storage businesses.

The main purpose of Garlic Storage Rooms is to minimize product deterioration while maintaining freshness, appearance, weight, and commercial value from harvest to shipment.

What Are Garlic Storage Rooms?

Garlic Storage Rooms are specialized areas designed to keep harvested garlic under controlled environmental conditions during drying, curing, preservation, and pre-shipment storage.

Depending on the project and intended storage period, a garlic room may be designed as:

• A garlic drying room

• A curing room

• A ventilated storage room

• A refrigerated cold storage room

• A long-term garlic storage facility

A professional garlic room is not simply a refrigerated space. Temperature, humidity, air circulation, insulation, refrigeration capacity, product arrangement, and monitoring systems must all work together.

Important components include:

• Temperature control

• Humidity management

• Air circulation

• Drying and curing systems

• High-performance insulation

• Refrigeration equipment

• Evaporators and condensers

• Ventilation fans

• Cold room doors

• Product crates and pallet arrangements

• Hygienic surfaces

• Digital monitoring and automation

When these elements are professionally engineered, Garlic Storage Rooms can provide more stable storage conditions and help protect the commercial value of the product.

Why Are Garlic Storage Rooms Important?

Although garlic is generally considered a relatively durable agricultural product, it remains sensitive to environmental conditions after harvest.

Poor storage conditions may result in:

• Sprouting

• Mold development

• Bulb deterioration

• Softening of cloves

• Moisture loss

• Shriveling

• Unpleasant odors

• Color changes

• Weight loss

• Reduced market value

High humidity can increase the risk of mold and decay, while excessive moisture loss can cause garlic bulbs to shrink and lose weight.

Insufficient ventilation may allow moisture to accumulate between products. Incorrect temperature management may also increase the risk of unwanted physiological changes during storage.

For these reasons, Garlic Storage Rooms should be designed according to the characteristics of garlic rather than treated as conventional warehouses.

A professionally designed garlic cold storage facility can:

• Extend garlic shelf life

• Reduce post-harvest losses

• Help control sprouting

• Reduce mold and decay risks

• Limit excessive weight loss

• Maintain commercial quality

• Support export operations

• Improve product stability before shipment

• Provide greater flexibility in sales planning

• Strengthen agricultural cold-chain operations

Garlic Drying and Curing Before Cold Storage

One of the most important stages before long-term garlic storage is drying and curing.

After harvest, the outer skin, stem, and neck area of the garlic should be properly dried before the product enters long-term storage.

Garlic that has not been sufficiently cured may carry excess moisture into the storage environment. This can increase the risk of mold, decay, and quality deterioration.

Therefore, successful Garlic Storage Rooms should be considered together with the drying and curing process.

A properly designed garlic drying room should:

• Provide balanced airflow

• Prevent excessive moisture accumulation

• Protect the product from excessive heat

• Avoid direct sunlight where inappropriate

• Allow controlled drying of the outer skin

• Prevent excessive dehydration

• Reduce the risk of decay

• Prepare the garlic for subsequent storage

The curing process and storage conditions should always be selected according to product characteristics and the intended storage period.

For additional technical information about post-harvest handling and storage recommendations for garlic, see the UC Davis Postharvest Research and Extension Center – Garlic resource.

1. Temperature Control in Garlic Storage Rooms

Temperature management is one of the most important engineering considerations in Garlic Storage Rooms.

The appropriate temperature depends on several factors, including:

• Garlic variety

• Product condition

• Curing status

• Intended storage period

• Final market

• Packaging method

• Operating conditions

The refrigeration system should maintain a stable environment and minimize unnecessary temperature fluctuations.

Sudden or frequent temperature changes may affect both the product and the humidity conditions inside the room.

For this reason, refrigeration equipment should not be selected according to room volume alone.

Professional refrigeration capacity calculations should consider:

• Room dimensions

• Product quantity

• Product inlet temperature

• Daily product intake

• Required room temperature

• Ambient temperature

• Insulation performance

• Door opening frequency

• Lighting load

• Personnel load

• Pull-down requirements

• Operating schedule

Correct equipment selection allows Garlic Storage Rooms to operate more consistently while avoiding unnecessary refrigeration capacity and energy consumption.

2. Humidity Control in Garlic Storage Rooms

Humidity is another critical factor in garlic storage.

Excessive humidity may create favorable conditions for mold and deterioration, while very low humidity may increase moisture and weight loss.

Therefore, humidity should be managed according to the characteristics of the product and the required storage period.

Humidity management depends on more than the refrigeration unit itself. It is also influenced by:

• Air circulation

• Evaporator selection

• Product arrangement

• Ventilation

• Room insulation

• Door openings

• Product load

• Product inlet condition

Professional Garlic Storage Rooms should therefore be designed by considering temperature and humidity together.

The objective is to maintain suitable storage conditions without creating excessive moisture accumulation or unnecessary product dehydration.

The FAO also provides detailed information on garlic post-harvest handling, drying, storage, and associated product losses in its Garlic Post-Harvest Operations Compendium.

3. Air Circulation in Garlic Storage Rooms

Effective air circulation is essential for professional Garlic Storage Rooms.

When garlic is stored in crates, sacks, boxes, or on pallets, airflow must be able to move through and around the stored product.

If the product is stacked too closely or airflow paths are blocked, certain areas may receive insufficient ventilation.

This can create non-uniform conditions inside the room.

Correct air circulation helps:

• Maintain more uniform temperatures

• Reduce localized moisture accumulation

• Improve storage consistency

• Reduce the risk of warm zones

• Support humidity management

• Improve overall refrigeration efficiency

The evaporator, fan capacity, air throw distance, product arrangement, aisle spacing, and room geometry should therefore be evaluated together.

Simply installing more powerful fans does not automatically create a better system.

Air should circulate effectively without creating unnecessary product dehydration or inefficient airflow patterns.

For this reason, Garlic Storage Rooms require proper evaporator positioning and professional product-layout planning.

4. High-Performance Insulation

Insulation is one of the main factors affecting the performance and energy consumption of a garlic cold storage facility.

High-quality insulated sandwich panels help minimize heat transfer between the external environment and the cold room.

Correct insulation helps:

• Reduce refrigeration load

• Improve temperature stability

• Reduce unnecessary compressor operation

• Improve energy efficiency

• Reduce condensation risks

• Support long-term system performance

Panel thickness should be selected according to:

• Target room temperature

• Ambient design temperature

• Facility location

• Room dimensions

• Operating conditions

• Refrigeration requirements

TunelGroup provides different insulation solutions for refrigerated environments. More information is available on the Cold Room Wall Panels page.

Panel joints, corners, ceilings, floors, and door openings should also be properly sealed.

Even a high-quality refrigeration system may perform inefficiently if the insulation envelope is poorly installed.

5. Correct Cold Room Door Selection

Doors have a direct impact on the performance of Garlic Storage Rooms.

Every time a cold room door opens, external air can enter the storage area. Depending on ambient conditions, this may introduce both heat and moisture into the room.

The correct door system should therefore be selected according to:

• Door dimensions

• Daily traffic frequency

• Forklift access

• Pallet truck access

• Loading procedures

• Required insulation

• Hygiene requirements

Facilities with frequent product movements may use:

• Hinged cold room doors

• Sliding cold room doors

• Motorized sliding doors

• PVC strip curtains

• High-speed doors

Proper sealing is particularly important for reducing unwanted infiltration.

You can review available options on TunelGroup’s Cold Room Doors page.

The door should also be positioned to support efficient product movement without interfering with storage arrangement or airflow.

6. Digital Monitoring and Automation

Modern Garlic Storage Rooms can benefit significantly from digital control and automation systems.

Temperature and humidity should be monitored regularly because storage conditions may change due to door openings, product loading, ambient conditions, or equipment performance.

A digital monitoring system can provide:

• Room temperature monitoring

• Humidity monitoring

• Alarm management

• Sensor monitoring

• Fault detection

• Equipment status information

• Historical data recording

• Remote monitoring

• Energy monitoring

For commercial storage facilities and exporters, recorded data can also support operational control and documentation.

TunelGroup’s Digital Control Panel for Cold Room solutions can be integrated into cold-storage projects where continuous monitoring and control are required.

Automation is particularly useful in large Garlic Storage Rooms, where manually monitoring every operating parameter may be inefficient.

7. Correct Product Arrangement and Storage Capacity

The way garlic is physically arranged inside the room is just as important as the refrigeration equipment.

Product layout directly affects:

• Air circulation

• Cooling performance

• Loading efficiency

• Inspection access

• Cleaning

• Inventory management

Garlic should not be stacked in a way that blocks evaporator airflow or prevents air movement between storage units.

When planning Garlic Storage Rooms, the project team should determine whether the product will be stored:

• In plastic crates

• In wooden crates

• In sacks

• In boxes

• On pallets

• In bulk storage configurations

Required aisle widths should also be considered if forklifts or pallet trucks will operate inside the facility.

The objective is to maximize usable capacity without compromising airflow or operational safety.

Important Questions Before Building Garlic Storage Rooms

Room dimensions alone are not sufficient to design professional Garlic Storage Rooms.

Before refrigeration capacity and equipment are selected, the following questions should be answered:

• Is the garlic freshly harvested or already cured?

• Is a separate drying room required?

• Will storage be short-term or long-term?

• How many tons of garlic will be stored?

• How much product will enter the facility each day?

• What is the garlic inlet temperature?

• What storage temperature is required?

• What humidity conditions are required?

• How will the product be packaged?

• Will crates, sacks, or pallets be used?

• How will airflow move through the product?

• How often will doors open?

• Will forklifts or pallet trucks be used?

• Is remote monitoring required?

• Is temperature or humidity recording required?

• Will the facility be used for export operations?

These parameters form the basis of refrigeration load calculations and equipment selection.

Refrigeration Systems for Garlic Storage Rooms

Different refrigeration configurations can be used depending on storage capacity and project requirements.

Possible solutions include:

• Monoblock refrigeration units

• Split refrigeration systems

• Hermetic systems

• Semi-hermetic systems

• Scroll compressor systems

• Central refrigeration systems

• Industrial refrigeration systems

Small and medium-sized Garlic Storage Rooms may use compact refrigeration solutions, while larger facilities may require central or industrial refrigeration systems.

The correct solution should be determined through refrigeration-load calculations rather than selecting equipment solely according to horsepower or room volume.

The evaporator must also be selected according to the required capacity, airflow, room geometry, and product sensitivity.

Energy Efficiency in Garlic Storage Rooms

Cold storage facilities may operate for long periods throughout the year. Energy efficiency is therefore an important factor in operating costs.

Energy-efficient Garlic Storage Rooms require all system components to work together.

Important considerations include:

• Correct refrigeration capacity

• Appropriate panel thickness

• High-quality insulation

• Proper evaporator selection

• Efficient compressors

• Controlled air circulation

• Proper door sealing

• LED lighting

• Digital controls

• Correct product arrangement

• Regular maintenance

Oversized refrigeration equipment does not automatically provide better performance.

Likewise, undersized equipment may operate continuously while struggling to maintain the required room conditions.

Professional system calculations help establish a better balance between refrigeration performance, investment cost, and long-term energy consumption.

Maintenance of Garlic Cold Storage Systems

Regular maintenance is important for maintaining reliable refrigeration performance.

The main components that should be inspected include:

• Evaporators

• Condensers

• Fans

• Compressors

• Refrigerant circuits

• Electrical connections

• Temperature sensors

• Humidity sensors

• Door gaskets

• Drainage systems

• Control panels

Dirty condensers or evaporators can negatively affect system performance.

Door seals should also be inspected because damaged gaskets may allow excessive air infiltration.

You can also review TunelGroup’s guide on Cold Room Maintenance and Cleaning for additional information.

Common Mistakes in Garlic Storage Rooms

Some of the most common storage mistakes can increase product losses and operating costs.

These include:

• Placing insufficiently cured garlic into long-term storage

• Using incorrect storage conditions

• Blocking airflow between products

• Stacking products too close to walls or evaporators

• Allowing excessive moisture accumulation

• Ignoring temperature fluctuations

• Leaving doors open unnecessarily

• Exceeding the designed storage capacity

• Selecting incorrect refrigeration capacity

• Neglecting evaporator maintenance

• Neglecting condenser cleaning

• Failing to monitor sensors

Avoiding these mistakes helps Garlic Storage Rooms operate more reliably and supports consistent product quality throughout the storage period.

Garlic Storage Rooms and the Cold Chain

Storage is only one stage of the agricultural supply chain.

After harvest, garlic may move through:

1. Drying and curing

2. Sorting

3. Storage

4. Packaging

5. Loading

6. Transportation

7. Distribution

Product conditions should be managed throughout this process.

Professionally designed Garlic Storage Rooms provide an important controlled environment between harvest and shipment.

This becomes particularly important for businesses supplying distant markets or export customers.

For more information about temperature-controlled supply chains, see TunelGroup’s article on Advanced Cold Chain Infrastructure.

Garlic Storage Room Solutions by TunelGroup

TunelGroup provides cold room, cold storage, refrigeration, insulation, door, and control-system solutions for different agricultural and industrial applications.

Each garlic storage project should be evaluated according to:

• Product characteristics

• Storage capacity

• Storage duration

• Required temperature

• Humidity requirements

• Product inlet conditions

• Air circulation

• Facility dimensions

• Operating intensity

• Loading and unloading procedures

TunelGroup’s engineering approach evaluates the complete system rather than considering refrigeration equipment separately.

The project may include:

• Cold room design

• Insulated sandwich panels

• Cold room doors

• Refrigeration equipment

• Evaporators

• Condensers

• Control panels

• Monitoring systems

• Technical project planning

This integrated approach allows Garlic Storage Rooms to be designed according to both product requirements and operational conditions.

Conclusion: Garlic Storage Rooms Protect Product and Commercial Value

Garlic Storage Rooms are an important part of professional post-harvest management.

Correct temperature management, balanced humidity, effective air circulation, high-quality insulation, appropriate refrigeration capacity, reliable doors, proper product arrangement, and digital monitoring all contribute to more consistent storage conditions.

A successful garlic storage project should therefore begin with product analysis rather than equipment selection.

Storage duration, garlic condition, daily product intake, packaging method, target conditions, facility location, and operational requirements should all be evaluated before the refrigeration system is finalized.

For producers, cooperatives, exporters, and agricultural storage businesses, professionally engineered Garlic Storage Rooms can help preserve product quality, reduce avoidable losses, extend shelf life, and improve overall storage efficiency.

A properly designed garlic storage room does more than keep garlic cold—it protects product quality and commercial value from harvest to shipment.

Frequently Asked Questions

What are Garlic Storage Rooms?

Garlic Storage Rooms are controlled storage environments designed for the drying, curing, preservation, or refrigerated storage of garlic after harvest. Temperature, humidity, ventilation, and air circulation are managed according to storage requirements.

Can garlic be stored in a cold storage facility?

Yes. Garlic can be stored in refrigerated facilities when suitable temperature, humidity, and airflow conditions are provided. The product should also be appropriately prepared and cured before long-term storage.

Why is humidity important in garlic storage?

Humidity affects product moisture loss as well as the risk of mold and deterioration. For this reason, humidity conditions should be evaluated together with temperature, airflow, product arrangement, and storage duration.

Is ventilation required in Garlic Storage Rooms?

Yes. Effective air circulation helps provide more uniform conditions around the stored products and reduces localized moisture accumulation.

What refrigeration system should be used for garlic storage?

The correct system depends on room capacity, product load, storage conditions, ambient temperature, and operating requirements. Monoblock, split, semi-hermetic, scroll, central, or industrial systems may be suitable depending on the project.

What should be considered when designing Garlic Storage Rooms?

Storage capacity, product condition, storage duration, temperature, humidity, airflow, insulation, refrigeration capacity, evaporator positioning, doors, product arrangement, and monitoring systems should all be considered as part of the complete project.