Among the methods of preserving flowers, using cold storage is the most popular method. However, some people still wonder about the real effectiveness of this method. Please refer to the article below of Tan Long to better understand the use cold storage for fresh flowers ok
Ways to preserve fresh flowers
Traditional method
Put flowers in warm water: Use 43°C-44°C water for 1-2 hours.
Cut off leaves on the lower stem: Avoid soaking leaves in water, causing waterlogging and bacteria.
Cut the stem diagonally: Increases water absorption.
Change water regularly: Add aspirin to keep water clean.
Use preservatives
Mix sparkling water with lemon juice and bleach, put flowers in this solution to maintain freshness.
Preserving fresh flowers with cold storage
Cold storage reduces metabolism and prevents bacteria. Proper temperature and humidity control helps keep flowers fresh longer.
What is the best method for preserving fresh flowers?
Traditional methods such as changing the water, placing the flowers in warm water, and removing leaves are only effective in the short term and do not extend the life of the flowers. These methods are also time-consuming and labor-intensive when applied to large quantities.
Using cold storage to preserve fresh flowers is the best method today. Just put the flowers in the warehouse and adjust the temperature, the flowers will keep their freshness, fragrance and not bloom early. This is an effective and time-saving solution for flower business owners.
Why should you install a cold storage to preserve fresh flowers?
- Prevent premature blooming: Cold storage for fresh flowers helps prevent premature growth and blooming of flowers, ensuring that the flowers do not bloom before reaching consumers.
- Keep flowers fresh: Cold storage maintains the freshness and quality of flowers for a long time, keeping their natural color and beauty, bringing high economic value.
- Limit fungal diseases: Low temperatures in cold storage kill or limit the reproduction of pathogenic microorganisms, protecting flowers from pests.
- Ethylene inhibition: Cold storage limits Ethylene gas, slows down the aging process, and helps flowers stay fresh longer.
- Prevent dehydration: Cold storage helps flowers retain water and essential minerals, prevents water and nutrient loss, and keeps flowers fresh longer.
- Cost savings: Cold storage installation at reasonable price, easy to construct and operate. The system is easy to control remotely and does not incur additional costs during use.
Advantages of using cold storage to preserve fresh flowers
Installing a cold storage for fresh flowers brings many benefits such as storing large quantities of flowers, maintaining long-term freshness and fragrance, and adjusting the appropriate temperature for each type of flower. The cold storage is easy to move, saves costs when stored with fruits, and ensures a standard preservation process.
The system is easy to operate, remote control, no additional costs, and prevents premature blooming. Quick installation at a reasonable price, cold storage becomes an important factor for food and fresh flower businesses.
Standard process of preserving fresh flowers with cold storage
- Harvesting: Harvest fresh flowers at the right time and cut the stems according to standards so that the flowers do not bloom immediately. Be careful not to bruise the flowers during harvesting.
- Sorting and packaging: Sort flowers immediately after harvest, remove bruised or broken flowers. Pack flowers in appropriate quantities before placing in cold storage.
- Cold storage: Place flowers in cold storage for 24-72 hours, depending on the type of flower. Adjust warehouse temperature from 2-4°C to reduce respiration and prevent premature blooming, keeping flowers fresh for a long time.
Note: Do not store flowers with ripe fruit to avoid ethylene gas causing flowers to wilt quickly.
Harvesting and preservation stages, popular flower types
Lilies and Calla Lilies
Harvest time: When the first bud at the base swells and has color.
Storage in cold storage:
Chemical treatment: Soak 1/4 of the flower stem in a solution of Sucrose (5-10%), Silver Nitrate (100mg/liter) or Silver Sulfate (4mol/liter), and GA3 (100ppm) for 20 minutes.
Cold storage: Temperature from 1-2°C.
Bloom stimulation: Use 8-Hydroxyquinoline (200mg/l) and Sucrose (3%).
Gerbera
How to harvest: Cover the flowers and place them in water to increase the firmness of the stem.
Storage in cold storage:
Preparation: Grade, cut off 2-5 cm of the base, put in water, store at 6-10°C for 24 hours, pack into bundles of 20 branches.
Chemical treatment: Soak 1/4 of the stem in Silver Nitrate solution (120mg/l) for 10 minutes, adjust the solution pH (3.5-3.7) with citric acid (150mg/l), add 20g of Sucrose/liter. Then, store at 1-2°C, humidity 90-95%.
Rose
Harvesting method: Depending on growth, leave 2-4 nodes or cut close to the flower branch. Harvest in March-April, leave 2 nodes, September-October, leave 5 nodes.
Storage in cold storage:
Preparation: Soak 1/3 of the flower stems in clean water, leave in a cool place. Sort and tie into bundles of 50-100 stems.
Preservative solution: Use branch nutrient solution, fungus inhibitor and Ethylene inhibitor. Store at 2-5°C, humidity 85-90%.
Chrysanthemum
How to harvest: Harvest when the flowers bloom 2/3 or almost all of the outer petals. Leave the flowers in a pot of clean water, bring to a cool warehouse for sorting.
Storage in cold storage:
Chemical treatment: Soak flowers in STS solution (8-10cm) for about 10 minutes, spray leaves thoroughly, avoid water stagnation on flowers.
Preservative solution: Sucrose (2-5%), 8-Hydroxyquinoline citrate (200ppm), Chlorine (5-10ppm), BenzylAdenine (2-5ppm), citric acid to adjust pH (3-3.5), soak for 5-10 hours at 10°C, humidity 90-95%.
Packing: Flowers wrapped in PE bags (0.04mm), stored at 5°C, humidity 90-95%.
How to calculate to construct a suitable and effective fresh flower cold storage
Formula for calculating the volume of cold storage: V = E / gv (unit m3)
In there:
V: Volume
E: Expected yield – or the amount of product that can be stored in the warehouse (tonnes)
gv: Cold storage load standard (unit: tons/m3)
Load area formula: F= V / h (unit: m2)
In there:
F: Loading area (m2)
V: Warehouse volume (m3)
h: Loading height of cold storage (unit m)
Construction area formula: FXD= F/ T (unit: m2)
In there:
FXD: area to be built (unit m2)
F: construction loading area
βT: coefficient for calculating the gap area between products and the area for installation condenser warehouse.
Structure and material selection when building cold storage for fresh flowers
Cold storage shell: Cold storage shell is made from panel 100mm thick EPS, density 18-20kg/m³, covered with 0.4mm thick corrugated iron sheet on both sides and reinforced with V-bars inside and outside.
Cold storage door: Cold storage doors are cast directly with PU onto the stainless steel surface, including two types: opening doors (hinged doors) and sliding doors (sliding doors).
Cluster compressor, condenser + Fresh flower cold storage air conditioning system: Using European technology such as Bitzer, Tecumseh, Eco, Meluck, Kewely, and Kube. Machine capacity will be calculated based on temperature range and cold storage size according to customer requirements.
Fresh flower cold storage control cabinet: The control cabinet operates in automatic mode, controlling and protecting the equipment of the refrigeration system. The parameters are pre-set, making the usage process simple.
Price list of cold storage for fresh flowers in Tan Long
For cold storage for fresh flowers, the price will be calculated based on factors such as materials, equipment installed inside the warehouse, specific customer requirements and warehouse area. To receive an exact quote, you can contact Tan Long via hotline 0933357058 to receive the most accurate quote.
Process of installing cold storage for preserving fresh flowers at Tan Long
Tan Long carries out the construction of cold storage for preserving fresh flowers according to strict, methodical and professional procedures. The implementation sequence includes:
Step 1: Get information
Technical experts receive information from customers who need installation, cold storage design.
Step 2: Reality Check
Our team of technicians will come to the construction site and provide specific advice to customers.
Step 3: Construction quote
Based on the cold storage installation items and listed price list, the technician will give a detailed quote to the customer.
Step 4: Proceed with installation
The team of workers will proceed to install the cold storage after receiving customer approval.
Step 5: Check and collect fees
Upon completion, the technician will re-check the cold storage, ensure proper operation, collect service fees based on the original quote, and send a warranty card.
Step 6: Post-warranty
Customer service team will call to receive customer feedback to ensure the cold storage operates at its best.
Notes when building cold storage for preserving fresh flowers
- Cold storage location: Choose a dry place, free of stagnant water and away from areas with sources of pollution.
- Spacious premises: Ensure enough space to facilitate the transportation of goods.
- Insulation: Use standard insulation panels to prevent hot air from entering the cold storage.
- Stable power source: Ensure the power supply to the cold storage is always stable so that the warehouse operates well and preserves goods effectively.
- Clean water source: Ensure adequate clean water supply and comply with Ministry of Health regulations on hygiene and safety.
Tan Long - A reputable and quality address for installing cold storage for fresh flowers
Tan Long is proud to be a reputable and quality cold storage installation service provider. With 20 years of experience in the industry, we have implemented many large projects for famous customers such as Coca Cola Vietnam, Suntory Pepsico Vietnam, Lotte F&G, Nutifood, ...
Tan Long's team of professional and experienced technicians is committed to providing effective fresh flower preservation solutions, helping to maintain the freshness and quality of flowers for a long time. We use advanced equipment and technology, ensuring stable and energy-saving cold storage operations. Please contact Tan Long at 0933357058 for advice and to receive the most suitable fresh flower cold storage installation solution for your needs.
Above is information about the construction and price list of cold storage for fresh flowers. Hopefully you will have more useful knowledge when reading this article. If you have a need to construct cold storage in Vietnam, do not hesitate to contact us. Tan Long to receive smart, economical and effective solutions.
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