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Buyer's guide · Concentrate jars

Custom Child-Resistant Concentrate Jars: A Quick Guide

Last updated: August 2026 · By TWO Packaging

Concentrate jars are one of those pieces of packaging most people never think about until they need them. But there is more going on with a good jar than it seems, so here is a quick rundown. 🍯

At the most basic level, a concentrate jar has two jobs: keep the product safe and keep it fresh. Everything else is detail.

What actually goes into custom child-resistant concentrate jars

An airtight seal

Concentrates are sensitive to air, light, and heat. A proper lid seals tightly to help preserve the terpenes, texture, and potency, so the product a customer opens is the product you made.

Material options

Glass keeps the product inert and is the standard for premium concentrates. Food-grade plastic is lighter and more durable, which can be a better fit for travel or budget lines. Both have their place depending on your product.

Size options

Concentrate portions are small, so jars usually run in the five to nine milliliter range. Matching the jar size to the portion keeps things simple and avoids wasted space.

Child resistant by design

The jars come child resistant, so that side of things is handled without any extra effort on your end.

Glass vs. food-grade plastic

What mattersGlassFood-grade plastic
Product contactInert — keeps concentrate pureFood-grade and safe
Feel & positioningPremium, high-endPractical, everyday
DurabilityCan break if droppedLighter and more durable
Best forPremium concentrate linesTravel and budget lines

The core of it

That is really the core of it. A concentrate jar is a small piece of packaging doing an important job — keeping the product protected, fresh, and easy to use.

Three things to get right on a concentrate jar

  1. Match the jar to the portion. A 5–9 ml jar sized to the dose keeps things simple and avoids wasted space.
  2. Prioritize the seal. An airtight lid protects the terpenes, texture, and potency between your bench and the customer.
  3. Pick material by product line. Glass for premium and purity, food-grade plastic for travel and budget lines.

Where TWO Packaging fits

For anyone who needs them, this is something we make. We provide custom child-resistant concentrate jars in a range of sizes and materials, so if you are looking for them, we are happy to help you find the right fit.

Frequently asked questions

What size are concentrate jars?

Concentrate portions are small, so jars usually run in the five to nine milliliter range. Matching the jar size to the portion keeps things simple and avoids wasted space.

Glass or plastic for concentrate jars?

Glass keeps the product inert and is the standard for premium concentrates. Food-grade plastic is lighter and more durable, which can be a better fit for travel or budget lines. Both have their place depending on your product.

Are the jars child resistant?

Yes. The jars come child resistant by design, so that side of things is handled without any extra effort on your end.

Why does an airtight seal matter?

Concentrates are sensitive to air, light, and heat. A proper lid seals tightly to help preserve the terpenes, texture, and potency, so the product a customer opens is the product you made.

Need custom concentrate jars?

We make custom child-resistant concentrate jars in a range of sizes and materials — protected, fresh, and easy to use. Tell us your product and we'll help you find the right fit.

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