Contract manufacturing

Sachet fill weights and FSSAI compliance — the Silvassa manufacturing guide

5 min readJune 2026Sonfus Pharma

Electrolyte sachets are among the most consistently demanded functional products across South Asia, the Middle East, and Gulf markets. If you're a brand, distributor, or pharmacy chain looking to source electrolyte sachets from an Indian contract manufacturer, this guide covers the practical considerations — from formulation and fill weights through to regulatory compliance and export readiness.

Electrolyte formulations — standard blend or bespoke development?

The electrolyte sachet market splits into two broad formulation approaches. Standard electrolyte blends — typically sodium, potassium, magnesium, and glucose combinations — form the basis of most commercial hydration and recovery products. These are reliable starting points: the ingredient relationships are well-established, production is predictable, and a competent CMO will hold validated standard blends they can adapt to your specification.

Bespoke formulation development gives you proprietary differentiation. If your target market or clinical positioning requires a specific electrolyte ratio, a particular active addition (zinc, B vitamins, L-carnitine, taurine), or an unusual flavour profile, a CMO with in-house formulation capability can develop from your brief and protect the resulting formulation under NDA.

Most brand launches start with an adapted standard electrolyte blend — customising flavour, dissolving characteristics, and sweetener profile — before investing in a fully proprietary formulation as volume grows. Both paths are valid; the right choice depends on your product positioning and go-to-market timeline.

If you have your own formulation, a contract manufacturer should replicate it to specification. Confirm that the CMO can validate outcomes through their own QC lab before committing to a manufacturing relationship.

Fill weights and sachet formats

Electrolyte powder sachets are produced across a wide range of fill weights and formats depending on product category and target consumer:

  • 5–8 g — single-serve sachets for daily electrolyte drinks; common in health channel and gym retail
  • 10–15 g — slightly larger serve formats for recovery or clinical electrolyte products
  • 25–30 g — higher-dose formats for sports nutrition or high-sweat-rate contexts
  • 200 g or 840 g bulk pouches — institutional buyers: hospitals, clinics, gym chains, NGO programmes

Your contract manufacturer should be capable of filling consistently across your chosen fill weight and confirm that in-process sampling verifies seal integrity on every batch. Moisture ingress through a defective seal degrades powder quality and shortens shelf life — a primary quality risk in sachet formats that a serious CMO actively monitors.

FSSAI licensing — the regulatory framework for electrolyte sachets

Electrolyte powders marketed as food supplements or nutraceuticals in India operate under FSSAI licensing and the Food Safety and Standards Act, 2006. Your contract manufacturer must hold a valid FSSAI manufacturing licence covering your product category, and the licence number must appear on the finished product label.

FSSAI-regulated products cannot make medicinal or therapeutic claims — product language must stay within functional benefit territory (e.g., "helps maintain electrolyte balance" rather than "treats dehydration"). For products making direct clinical or therapeutic claims, a Drug Manufacturing Licence under the Drugs and Cosmetics Act may be required. Confirm the regulatory category with your legal and compliance counsel before finalising product copy.

For export to international markets, the FSSAI licence is typically accepted as the primary manufacturing credential. You may additionally need a Free Sale Certificate or Export Certificate from FSSAI or APEDA depending on the destination country's import requirements — your CMO should advise on which documents are required for your target market.

Documentation for export markets

Electrolyte sachets exported to Gulf markets, Europe, or other regulated destinations require detailed batch documentation. Import clearance typically requires:

  • Certificate of Analysis (CoA) from the manufacturer's QC lab or an NABL-accredited third-party laboratory
  • Full batch manufacturing records with in-process check data
  • Shelf-life declaration and stability data, particularly for temperature-sensitive shipping corridors
  • Labelling compliant with destination country regulations — UAE and GCC markets require Arabic language on consumer-facing packaging

Choose a manufacturer already exporting to markets similar to yours. Established documentation processes, existing customs clearance experience, and familiarity with destination-specific requirements significantly reduce your risk of avoidable delays and rejected shipments.

Working with Sonfus Pharma

Sonfus Pharma is an electrolyte manufacturer operating from our FSSAI-licensed facility in Silvassa (Licence No. 13124999000001). We produce electrolyte powder sachets across the standard fill weight range and provide full batch documentation and CoA with every order.

We actively export to Gulf markets and can support labelling, CoA formatting, and export documentation for UAE, Saudi Arabia, Oman, Qatar, and other international destinations. We work from your supplied formulation or develop one with you — your formulation IP stays confidential under NDA. Trial batches are available before committing to commercial volumes.

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