HiSiaddi is an innovative foreign trade service provider driven by dual engines of technology commercialization and foreign trade services, with a "1+2+3+4=1" service system and supply access to tartaric acid from multiple well-known original manufacturers.
As a foreign trader with R&D capabilities, HiSiaddi frequently proposes tartaric acid formula optimization schemes and application improvement suggestions based on technological cooperation with factories and precise market insight. Below is a technical consulting case of tartaric acid formula optimization delivered by HiSiaddi.
Please contact HiSiaddi customer service if you require more formula optimization consulting services.
The buyer, Bodega Premium S.L, a premium Rioja winery in Spain, produces dry red wine and high-end sparkling wine under the Rioja Denominación de Origen qualification. Its products are sold in premium wine chains across Madrid and wine sections of Michelin-starred restaurants in Western Europe, fully complying with OIV international brewing standards, EU E334 food additive regulations, LFGB and EU Organic certifications. The winery consumes 115 tons of natural L(+)-tartaric acid annually. It previously purchased domestically produced grape-derived natural tartaric acid from Spain, but switched to Chinese natural L-tartaric acid for the first time amid raw material shortages and price hikes. After large-scale feeding of the imported Chinese product, three persistent technical production failures emerged:
1. Unbalanced taste of dry red wine: At identical dosing levels, the wine presented sharp sourness that masked fruit aroma, accompanied by large pH fluctuations and inconsistent acidity across batches of base wine.
2. Severe crystallization after bottled storage: White tartrate crystals precipitated at bottle bottoms and corks after 2 months of ambient storage, damaging the appearance of premium products and triggering mass returns from distributors.
3. Malfunction of automated feeding lines: Mixed particle sizes in raw materials caused fine powder agglomeration and slow dissolution of coarse crystals, clogging acid addition pipelines and reducing workshop production efficiency. The winery’s oenologists repeatedly adjusted dosing ratios and feeding timings without improvement. Domestic suppliers could only control factory physical and chemical indicators, lacking understanding of end-use brewing formula logic and unable to conduct remediation from raw material physical property optimization. Delayed launch of new vintages prompted the winery to entrust HiSiaddi’s technical team with full-chain troubleshooting and optimization of raw material formulas and production processes.
HiSiaddi deployed organic acid engineers and brewing application technicians to conduct full physical and chemical testing on raw materials and finished base wine, identifying three core root causes: excessive impurities in tartaric acid, mismatched particle size combinations and crystal dissolution characteristics incompatible with the winery’s production process.
1. Sharp sour taste and unstable pH: Conventional domestically produced tartaric acid contained excessive residual sulfate and by-product organic acids with wide fluctuations in optical rotation. Impurities disrupted the wine’s buffer system, triggering abrupt acid release at identical dosing levels, breaking the original organic acid balance of wine and interfering with malolactic fermentation, resulting in sharp sourness and out-of-spec pH fluctuations across batches.
2. Post-bottling crystallization: Mixed coarse and fine particles in raw materials caused rapid dissolution of fine powder to instantly raise wine liquid supersaturation. Cold stabilization processes failed to fully precipitate potassium bitartrate, leading to slow crystal precipitation during later temperature changes in storage.
3. Feeding pipeline blockage & uneven dissolution: Without graded screening, ultrafine powder absorbed moisture and agglomerated while large crystals dissolved slowly. Standard raw materials designed for manual feeding were incompatible with the winery’s continuous automated production lines.
1. Dry red wine grade: Uniform 20–30 mesh compact crystalline tartaric acid. Factories optimized recrystallization processes to control sulfate and fumaric acid ≤ 0.015%, fixing optical rotation within +13.9~+14.1°. Dense crystal structures enable slow acid release to avoid abrupt acidity spikes that suppress fruit aroma.
2. Sparkling wine grade: Homogenized 120 mesh ultrafine powder tartaric acid, produced via low-temperature closed crushing and full screening to remove coarse particles. The powder features strong dispersibility and low moisture absorption for instant acid adjustment in early fermentation of sparkling wine.
1. Dry red wine formula optimization: Shift tartaric acid feeding from early fermentation to post-alcoholic fermentation with two split small doses, reducing single feeding volume by 6%. Trace natural sodium citrate is added to build a buffer system, stabilizing wine pH within 3.5–3.6 to balance sourness and retain native fruit aroma.
2. Sparkling wine formula optimization: Pre-dissolve ultrafine tartaric acid at low temperature during juice blending to avoid localized over-acidification, with synchronized fine-tuning of bicarbonate ratios to control carbon dioxide release rate.
1. Anti-crystallization process: Lower cold stabilization temperature from -2℃ to -5℃ with 4 days of constant-temperature standing, paired with compliant bentonite filtration to pre-separate excess tartrate salts and eliminate post-bottling crystallization at source.
2. Feeding control: Adopt aluminum composite moisture-proof sealed packaging for raw materials and control workshop humidity ≤55% to prevent powder moisture absorption and agglomeration blocking automated pipelines.
1. Sample stage: HiSiaddi sent modified samples of each specification for three rounds of small-batch brewing trials at the winery. All indicators of wine acidity and taste met standards, with zero crystal precipitation after accelerated storage for 90 days.
2. Pilot production: Small batches of 5 tons per specification were deployed on full production lines with a 100% pass rate and smooth automated feeding without pipeline blockages.
3. Annual framework order confirmation: A 118-ton annual procurement framework was signed, including 72 tons of 20–30 mesh tartaric acid for dry red wine and 46 tons of 120 mesh ultrafine powder for sparkling wine, split into 11 stable production batches. HiSiaddi simultaneously supplied bilingual COA compliant with Spanish market access, LFGB test reports and raw material traceability documents, enabling smooth customs clearance and warehousing at the Port of Barcelona.
1. Mid-to-high-end Spanish winery: Procurement costs of customized domestic tartaric acid dropped by 27% compared with locally sourced Spanish alternatives. Product returns caused by crystallization and unbalanced taste were completely eliminated, allowing new vintages to be fully launched across high-end Western European wine channels. With raw material acceptance standards and feeding specifications compiled by HiSiaddi, the winery established internal tartaric acid warehousing control systems, cutting new product trial cycles by 60%. The winery expanded into the Porto market in Portugal the following year and placed an additional customized order of 38 tons.
2. Domestic tartaric acid manufacturer: Supported by this high-end winery order, the factory upgraded graded crystallization and fine impurity removal production lines to form standardized wine-specific graded tartaric acid products. It subsequently secured fixed supply contracts with two premium Italian wineries, successfully entering the high-end brewing raw material supply chain of Southern Europe.
3. HiSiaddi foreign trade service provider: Integrated technical services covering raw material physical property optimization, brewing formula adjustment and on-site workshop process guidance locked long-term cooperation with high-end overseas wineries. The company moved beyond simple trading profit margins and built technical service barriers in organic acid application.
Most domestic tartaric acid manufacturers mass-produce general mixed-particle-size products aligned only with national standards, with no end-use wine brewing R&D capabilities. Brewing techniques of mid-to-high-end European wineries are highly refined and regulated by OIV standards; tiny differences in trace impurities or particle sizes of raw materials can lead to wine deterioration and finished product scrapping. As a neutral foreign trade service provider, HiSiaddi bridges technical gaps between upstream raw material process optimization and downstream brewing formula implementation, delivering simultaneous remediation of raw material, formula and production processes to adapt domestic tartaric acid to high-end European brewing scenarios.
Please contact HiSiaddi customer service if you require more formula optimization consulting services.
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