As a new-type foreign trade service provider driven by both technology commercialization and foreign trade, HiSiaddi has established a "1+2+3+4=1" service system and can supply freeze-dried rose powder sourced directly from well-known original manufacturers. Endowed with independent R&D capabilities, HiSiaddi has partnered with manufacturers on multiple technology conversion projects and accurately captured market demands, enabling us to propose targeted formula optimization and application improvement solutions for freeze-dried rose powder. Below is a real formula optimization consulting case completed by HiSiaddi.
Please contact HiSiaddi customer service if you require further formula optimization consulting services.
The buyer, FloralOrganic Inc based in Toronto, Canada, is a local premium organic brand operating three core product lines: oral rose oral liquids, rose dietary compressed tablets and salon serum stock solutions. Its products are sold across premium organic supermarkets, chain beauty clinics and North American SPA salons in Canada. Raw materials must comply with Canadian CFIA food regulations, EU EC396 standard covering 226 pesticide residue items, EU organic certification and USP heavy metal control standards. The brand previously sourced freeze-dried raw materials of Bulgarian Damascena roses all year round. To optimize its supply chain and cut raw material procurement costs, the enterprise launched a localization replacement project for freeze-dried powder of Pingyin double-petaled roses.
Mandatory customized requirements set by the client:
· Raw material: Pingyin No.1 edible double-petaled roses with zero added excipients.
· Active ingredient thresholds: Total polyphenols ≥12.3%, total flavonoids ≥3.7%, anthocyanins ≥0.82%.
· Two customized raw material categories: Cold-water instant freeze-dried powder for oral liquids and 300-mesh ultra-fine freeze-dried powder for skincare serums.
· Annual planned procurement volume: 14.2 tons.
The client independently contacted three domestic freeze-drying manufacturers for sampling in the early stage, yet multiple critical production technical failures emerged when samples were tested at the client’s R&D center in Canada and trialed on production lines, delaying the new product launch by 82 days and incurring equivalent losses of 14,800 Canadian Dollars for sample testing, raw material scrapping and production line downtime. Original manufacturers could only guarantee basic active ingredient content without synchronous optimization covering raw materials, processes and end-product formulations, prompting the client to fully entrust HiSiaddi’s foreign trade technical team with comprehensive troubleshooting and delivery of technical renovation solutions.
Supplying manufacturers sourced roses scattered from individual farmers, mixing flowers harvested at peak bloom, late bloom and rain-soaked blossoms, and adulterating authentic Pingyin double-petaled roses with low-cost ornamental Chinese roses. Vast disparities in active substance levels across flower varieties led to wide fluctuations in finished polyphenol content ranging from 10.1% to 13.6%, failing to meet the fixed internal control standard of 12.3%. Flowers picked on rainy days carry excessive moisture and breed trace mold before pre-treatment drying, introducing impurities that undermine long-term product stability.
Manufacturers adopted generic freeze-drying processes for fruits and vegetables with excessively high pre-freezing temperatures and rapid heating rates. Heat-sensitive skincare-critical essential oils including linalool and phenethyl alcohol lost over 42% of their volume due to thermal volatilization, leaving skincare raw materials with faint natural rose fragrance and forcing excessive additional synthetic fragrance during serum blending — a violation of the brand’s positioning of organic products with no extra artificial fragrances. Meanwhile, insufficient cell wall breaking reduced the water solubility of oral-grade raw materials.
Manufacturers uniformly crushed freeze-dried materials into coarse 70-mesh powder with no differentiated post-processing:
1. Oral liquid formulations turn turbid after cold-water dissolution and form reddish-brown flocculent precipitates after 7 days of refrigeration at 4℃, disrupting the beverage colloidal system.
2. Skincare raw materials feature oversized particle sizes that resist homogenization after addition to serum stock solutions, leading to static stratification and rough skin feel that fails salon skincare quality control standards.
Undegraded natural pectin and soluble polysaccharide impurities remain in freeze-dried powder. When compounded with vitamin C and zinc citrate in the client’s compressed tablet formula, tablets shift from pale pink to dark brown after 45 days of ambient storage, accompanied by excessive attenuation of active ingredients that fails the brand’s 24-month shelf-life requirement.
Crude finished product dehydration processes leave raw material moisture above 1.3%. With year-round storage humidity exceeding 50% in Canada, powder absorbs moisture and clumps within 2–3 days of unpacking, clogging filter cloths during oral liquid production and causing sticking to punches during tablet compression, pushing scrap rates as high as 27%.
HiSiaddi assembled a dedicated team of freeze-drying process engineers, dietary and skincare formulators and third-party testing specialists, coordinating two Shandong Pingyin manufacturers equipped with organic planting bases and flexible freeze-drying production lines. We delivered optimizations following the workflow: targeted raw material quality control → freeze-drying process refinement → differentiated powder modification for separate specifications → fine-tuning of end-product formulations → workshop management standardization, with verification across three phases: small samples, pilot trials and mass production.
HiSiaddi partnered with two EU organic-certified planting bases in Pingyin, stipulating that only Pingyin No.1 double-petaled roses hand-picked on sunny days during the annual May peak blooming period are accepted. Fresh flowers are delivered to freeze-drying workshops within 4 hours of picking, with damaged, diseased and miscellaneous flowers eliminated. Every batch of fresh flowers undergoes preliminary polyphenol testing, with non-compliant batches rejected outright to eliminate drastic fluctuations in active ingredient levels from the source.
Abandoning conventional high-temperature pre-freezing, we adopted a -45℃ slow gradient pre-freezing + segmented temperature-controlled vacuum freeze-drying technology, with separate freeze-drying curves configured for oral and skincare products:
· Skincare-grade powder undergoes slow low-temperature freeze-drying to maximize retention of volatile rose essential oils, limiting essential oil loss to below 7%.
· Oral liquid-grade powder receives moderate low-temperature cell wall breaking to boost water solubility. Finished product active indicators remain stably within the enterprise’s internal control range: polyphenols 12.4%–12.8%, flavonoids 3.71%–3.88%, anthocyanins 0.83%–0.88%.
1. Oral liquid dedicated powder: Modified via low-temperature β-cyclodextrin encapsulation with zero added dextrin or maltodextrin fillers, enabling full cold-water dissolution with no precipitate formation after 90 days of refrigeration at 4℃.
2. Skincare serum dedicated powder: Ultra-fine airflow grinding to 300 mesh under sealed nitrogen atmosphere yields delicate powder that homogenizes evenly with serum base oils and polyols without stratification.
1. Compressed tablet formula fine-tuning: Replace high-hygroscopic lactose excipients with low-moisture-absorbing microcrystalline cellulose, add trace food-grade citrate chelating agents to sequester trace metal impurities and block vitamin C oxidative discoloration, and adjust feeding sequences by pre-blending freeze-dried rose powder and mineral excipients separately to reduce direct contact-induced oxidation.
2. Oral liquid formula: Adjust system pH to a weak acid buffer range of 4.4–4.8, pre-dissolve raw materials at a low temperature of 60℃ before temperature elevation for blending, and shorten high-temperature residence time to minimize active substance loss.
Adopt vacuum low-temperature dehydration for finished goods to strictly control moisture ≤0.5%, paired with independent vacuum nitrogen-filled aluminum foil packaging. HiSiaddi issued English storage operation manuals advising the client to maintain a constant warehouse temperature of 22℃ and humidity ≤40%, with unpacking conducted in small batches on demand to eliminate moisture absorption and caking during storage.
After four rounds of cross-border sample shipments, full-item testing by Canadian third-party laboratories and mid-scale production trials at the client’s factory, both variants of freeze-dried rose powder fully met specifications. The first batch of 3.9 tons of light-proof nitrogen-filled packaged products was shipped to Toronto with smooth customs clearance and warehousing. Post-commissioning, the oral liquid production line operated stably for 30 consecutive days without precipitation; skincare serum homogenization remained consistent without stratification, and compressed tablets showed no browning after 90 days of ambient storage, cutting scrap rates from 27% to 1.4%. The new product launch delayed by 82 days successfully rolled out across all premium retail channels in Canada.
The client formally signed an annual framework procurement order for 14.2 tons, comprising 8.7 tons of oral liquid water-soluble powder and 5.5 tons of skincare ultra-fine powder, to be produced in 10 monthly batches throughout the year. Subsequent customized development requests for freeze-dried rose powder for sparkling solid rose beverages were fully delegated to HiSiaddi for process optimization and sample delivery. Compared to raw materials previously imported from Bulgaria, overall procurement costs decreased by 30.5%, while sea transit time shortened from 85 days to 21 days.
Most domestic freeze-dried rose manufacturers prioritize mass production of low-cost generic bulk goods with fixed processes and insufficient R&D for differentiated formulation modification. They lack familiarity with compatibility requirements of overseas oral liquid and skincare formulations as well as overseas warehouse storage conditions. Mid-to-high-end North American brands possess thorough expertise in end-product development and local regulations but remain unfamiliar with raw material irregularities in China’s rose producing regions and shortcomings of domestic freeze-drying processes. Independent sourcing frequently results in production failures and delayed new product launches. Leveraging expertise in plant extract freeze-drying technology and overseas formulation application, HiSiaddi delivers full-chain technical services covering raw material source control, customized freeze-drying, powder modification and end-product formula optimization, bridging technical and informational gaps between Chinese and foreign supply and demand sides, and enabling domestically produced premium freeze-dried rose powder to stably enter North America’s premium organic raw material supply chains.
Please contact HiSiaddi customer service if you require further formula optimization consulting services.
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info@hisiaddi.com 
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