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Boston Round Bottles

The Best Containers for Extracts & Oils

The best jars for storing extracts, oils and other liquids are the Amber Boston Round glass containers. The Amber jars come in a variety of sizes (1 oz., 2 oz4 oz., 8 oz., 16 oz., and 32 oz.) and offer UV protection for light-sensitive products and have a narrow mouth for precision pouring. Our customers have used these jars for DIY cleaning liquids, bitters, specialty drinks, extracts (like our homemade vanilla extract) and so much more. The Boston Round jars are also available in clear glass if you don’t need the amber. Browse our entire line of Boston Round bottles to see which one fits your need best.


PolyCone Lined Phenolic Caps

While there are some metal and plastic lids compatible with some of the Boston rounds, all of them have compatible  PolyCone Lined Phenolic Caps. These caps form an exceptionally tight seal and provide a good chemical barrier. The cone shaped liner allows for a superior seal because it molds itself around the sealing area of the finish on the glass bottles. It is constructed of an oil-resistant plastic, which makes it a great match for oils, essential oils, solvents and liquids that require more care in storage or that could be caustic to your average lid. Pairing our Amber glass containers with PolyCone lids creates an excellent storage option for extracts, oils, brews, chemicals, medicines and other valuable liquids.


Dropper Caps

We also carry Dropper Caps which are ideal for measuring out small amounts of liquids. We offer dropper caps that pair with our 1 oz, 2 oz,  and 4 oz jars.  Whether you are making your own tinctures, custom fragrances or essential oil blends our dropper will become indispensable.


Mini_Stainless_Steel_FunnelThe easiest way to fill these jars is with our Mini Stainless Steel Funnel. It’s the perfect size to transfer herbs, spices, extracts, oils and other liquids into the Amber jars without risking spillage.

Shrink Bands

We also have heat shrink bands to fit all of our Boston Round Bottles, which are compatible with the phenolic lids in addition to the droppers. If you are unsure of sizing, we have the proper heat shrink bands listed in the “accessories” tab of each relevant container.

Post a Comment

  1. Susan Grant Posted February 16, 2019 at 11:30 am | Permalink

    Would you please let me know where your Amber Boston Glass Bottles are manufactured (1oz and 2 oz)?

    • Fillmore Container Posted February 25, 2019 at 11:44 am | Permalink

      Hi Susan,
      The 1oz. (C01-01C) is manufactured in Taiwan and the 2oz.(C02-01C) is manufactured in China.

  2. Gina Miller Posted March 8, 2020 at 12:02 pm | Permalink

    Do you sell eyedroppers with measurements?

    • Fillmore Container Posted March 10, 2020 at 12:06 pm | Permalink

      We do not sell those.

  3. Daniel Posted December 12, 2022 at 8:13 am | Permalink

    Good morning, are the below items sterile?

    Item ID: RC-020/400 DROPPER 1OZ
    Item ID: C01-01C

    • Fillmore Container Posted January 10, 2023 at 4:32 pm | Permalink

      Hi Daniel, They are not sealed by the manufacturer, so they can are not sterile.

  4. Nate Posted May 23, 2023 at 9:37 pm | Permalink

    Do you know if a spray top would fit on the bottle? I’d like to make room sprays.

    • Fillmore Container Posted May 24, 2023 at 9:26 am | Permalink

      Hi Nate,
      Yes, there are spray tops that fit these, unfortunately we don’t have them here yet. We’ve been trying to land on a reliable source for many of those accessories (spray, pump etc), but its’ been difficult. Hopefully this will be the year.