Blending & packing made easy - call us today -  01405 761746

How to Brief Your Toll Manufacturer

Outsourcing your first production run can feel daunting — especially when your innovation is the result of years of lab work, grant funding, and caffeine-fuelled breakthroughs. You need a manufacturer who understands what you’re trying to achieve. But they can only work with the information you give them.

A clear, detailed manufacturing brief is the key to a successful partnership — and a smooth production run. Here’s what to include, and how to avoid the most common misunderstandings.

It might sound obvious, but your manufacturer needs to know what you’re asking them to make — and how you want it to behave.

Include:

  • Product name (and internal code, if applicable)
  • What the product is designed to do
  • Intended market or use case (e.g. agricultural biostimulant, microbial soil amendment)
  • What countries you expect to sell into (may affect regulations that have to be complied with)
  • Stage of development (e.g. prototype, pre-commercial pilot, first batch for sale)

This helps the manufacturer understand how flexible they need to be, what risks they should be alert to, and what level of quality documentation is required.

Your toll manufacturer will need the full recipe to produce your product. That means:

  • Ingredient names and CAS numbers
  • Percentages by weight (or volume, but weight is more common)
  • Supplier recommendations (if certain grades or sources are important)
  • Critical handling notes (e.g. “add slowly under agitation” or “must not exceed 40°C”)
  • What type of formulation it is (ie powder, suspension concentrate etc)

Don’t assume lab notes will make sense out of context — clarity is key. If the product is still being finalised, explain which elements are flexible and which are fixed.

Your manufacturer needs to know how to handle your ingredients safely — for both people and the environment. If you already have SDS (Safety Data Sheets), include them. If not, your manufacturer may be able to help you identify hazards based on the formulation and/or write your SDS as part of the manufacturing process.

Also include any:

  • Temperature sensitivities
  • Incompatibilities
  • Special storage requirements

This information will influence everything from storage to equipment choice.

It’s easy to overlook packaging, but your manufacturer needs clear instructions here too. Specify:

  • Pack size and type (e.g. 5L jerry cans, 25kg sacks)
  • Label content (CLP compliant text, warning symbols and logos)
  • Batch coding or traceability requirements

If you’re not sure what’s standard, ask — a good manufacturer will walk you through the options.

Are you looking for a one-off trial run? Ongoing production? Something you can take to investors or distributors?

Being upfront about your goals helps your manufacturer plan accordingly — and advise on what’s realistic given your timeline, volumes, and budget.

Not every start-up has a fully polished technical pack. That’s OK. A good toll manufacturer understands that early-stage businesses may need support. The important thing is to be open, collaborative, and willing to answer questions.

At Grotech, we work with clients across the agri-tech and biotech space — from first-time founders to seasoned developers. We don’t make our own products, so we’re not in competition with you. Your formulations stay confidential, your ideas remain yours, and our role is to help you bring them to life — whether that means working from your exact spec or helping refine a formulation so it’s ready for manufacture. If you’re preparing to outsource your first batch — or looking to switch to a more responsive manufacturing partner — we’re ready to help. Get in touch here to start the conversation.