Comparing Food Safe Microgreen Trays: A Comprehensive Guide to Choosing the Right Tray for Growing Microgreens

Looking to start growing microgreens but unsure about which trays are the safest and most suitable for your needs? This comprehensive guide compares different food safe microgreen trays, helping you make an informed decision. Whether you're concerned about food safety or looking for the best tray for your microgreen growing venture, this article has got you covered.

​

Introduction to Microgreen Trays

​

Microgreen trays are essential tools to grow microgreens, which are young vegetable greens harvested just after the first leaves have developed. These trays provide the necessary support and environment for the seeds to germinate and the plants to grow. When it comes to choosing the right microgreen trays, it's crucial to prioritize food safety, as the trays directly come into contact with the plants that will be consumed.

​

What are microgreen trays?

​

Microgreen trays are containers specifically designed to grow microgreens. They come in various sizes and materials, each with its own set of advantages and considerations. The trays are typically shallow to accommodate the shallow root systems of microgreens and often feature drainage holes to prevent waterlogging.

​

Importance of using food safe trays for growing microgreens

​

Using food safe trays to grow microgreens is essential to ensure that the plants remain free from harmful contaminants. Food safe trays are made from materials that are approved for contact with food and are free from toxic substances that could leach into the plants. This is especially important for microgreens, as they are often consumed raw and in high quantities, making any potential contamination a significant concern.

​

Overview of different types of microgreen trays

​

There are various types of microgreen trays available, including plastic trays, food-grade plastic trays, and BPA-free plastic trays.

​

BPA-Free Trays

​

With Legigo Green Seed Sprouter trays you can grow microgreens without soil and the trays are BPA-free. Simply put the seeds on the tray. Soak the seeds. After soaking, put the seeds on the sprouting grid, fill the bottom tray with 3/4 cup of water and in as little as 10 days, you'll have microgreens ready to eat. Fresh, healthy, BPA-free.

​

These trays are also self-contained. You don't need an extra tray for the water to drain and you don't need soil. This is a very quick and easy method to starting with microgreens. You can also start out with their smallest pack that contains just two growing trays if you're just learning about microgreens and don't want to invest a lot of money.

​

Bamboo Microgreen Growing Trays

​

Additionally, there are trays made from other food safe materials such as bamboo and stainless steel. Each type of tray has its own unique features and considerations, making it important to understand the differences to make an informed decision.

​

This bamboo microgreen growing tray from Zestigreens, has a bamboo outside (which makes it look nice), but the inside where the microgreens grow is a BPA-free, plastic tray. Not only is this tray look attractive in your home, but it gets 5-star ratings. If that's not great enough, you only have to water the microgreens one time!

 

Key Factors to Consider When Choosing Food Safe Microgreen Trays

​

When choosing food safe microgreen trays, several key factors should be taken into consideration to ensure the trays meet your specific needs and requirements.

​

Material safety: plastic vs. food-grade plastic vs. BPA-free plastic

​

The material of the tray is a crucial factor in determining its safety for growing microgreens. Standard plastic trays may contain harmful chemicals that can leach into the plants, posing a risk to consumer health. Food-grade plastic trays are specifically designed to be safe for contact with food, while BPA-free plastic trays are free from the chemical compound bisphenol A, which has been linked to health issues. It's important to choose trays made from BPA-free polypropylene, a safe and durable material approved by the Canadian Food Inspection Agency for food contact.

​

Tray size and depth

​

The size and depth of the trays will determine the amount of microgreens that can be grown at once. Consider the space available for growing microgreens and choose trays that fit your available space and production needs.

​

Durability and reusability

​

Durability is an important factor, especially for commercial microgreen growers. Look for trays that are sturdy and can withstand multiple growing cycles without warping or breaking. Reusability is also a key consideration to reduce environmental impact and operational costs.

​

Compatibility with watering and drainage systems

​

Consider the compatibility of the trays with watering and drainage systems. Some trays are designed to work seamlessly with automated grow racks and irrigation systems, while others may require manual watering and drainage management. 

​

Comparison of Different Food Safe Microgreen Trays

​

Food-grade plastic trays

​

Pros:

• Approved for food contact

• Durable and long-lasting

• Available in various sizes and configurations

Cons:

• May be more expensive than standard plastic trays

Recommended brands and models:

• Bootstrap Farmer trays

 

BPA-free plastic trays

​

Pros:

• Free from harmful chemicals

• Sturdy and reusable

• Approved by food safety agencies

Cons:

• Initial cost may be higher than standard plastic trays

 

Recommended brands and models:

• Bootstrap Farmer BPA-free microgreen trays

 

Other food safe materials (e.g., bamboo, stainless steel)

 

Pros:

• Environmentally friendly

• Durable and long-lasting

• Unique aesthetic appeal

 

Cons:

• Limited availability

• May be more expensive than plastic trays

 

Recommended brands and models:

• Bamboo microgreen planting trays

• Stainless steel microgreen trays

 

Best Practices for Using Food Safe Microgreen Trays

​

Proper cleaning and sanitization methods

​

To ensure food safety, it's important to clean and sanitize the trays between growing cycles. Use a mild detergent and warm water to clean the trays, and consider using an actively aerated compost tea solution for sanitization.

​

Storage and maintenance tips for prolonging the lifespan of trays

​

Proper storage and maintenance can extend the lifespan of microgreen trays. Store the trays in a clean and dry environment, away from direct sunlight. Inspect the trays regularly for any signs of wear or damage, and replace any damaged trays to maintain food safety.

​

Ensuring food safety during the growing process

​

Monitor the growing environment to ensure that food safety standards are maintained throughout the growing process. Keep the growing area clean and free from potential contaminants, and follow good agricultural practices to minimize the risk of microbial contamination.

​

Conclusion

​

When choosing food safe microgreen trays, it's important to consider the material safety, tray size and depth, durability, and compatibility with watering and drainage systems. Food-grade plastic trays and BPA-free plastic trays are excellent choices for growing microgreens, offering a balance of safety, durability, and usability. Additionally, trays made from other food safe materials such as bamboo and stainless steel provide unique benefits for growers with specific preferences. By understanding the key considerations and comparing the available options, growers can make informed decisions to ensure the safety and success of their microgreen growing venture.