10 products
Test Tubes, Flasks & Brewing Jars for Homebrewers
Whether you’re building yeast starters, testing samples, or collecting sediment, Craft a Brew’s Test Tubes & Flasks collection provides the lab-grade tools you need to refine your brewing process.
Designed for homebrewers who value accuracy and cleanliness, these flasks, jars, and accessories help you prepare, test, and monitor your brew like a pro—no commercial setup required.
Top Test Tubes & Flasks for Homebrewing
- 8 Oz. Mason Jar (Yeast Catch) – Perfect for collecting yeast sediment from The Catalyst Fermentation System for future brews.
- 32 Oz. Mason Jar – A durable, reusable option for collecting samples or fermenting small test batches.
- 16 Oz. Mason Jar – Ideal for small liquid transfers or yeast washing.
- 10” Plastic Test Jar – Lightweight and easy to use with hydrometers for accurate gravity readings.
- Wine Thief – Easily extract samples from carboys or fermenters for testing or tasting.
- Beer Brewing Yeast Starter Kit – Everything you need to grow healthy yeast and jumpstart fermentation.
- 500 mL Erlenmeyer Flask – Ideal for small yeast starters or wort testing.
- 1000 mL Erlenmeyer Flask – The standard size for most 1-gallon yeast starter preparations.
- 2000 mL Erlenmeyer Flask – Large enough for bigger yeast cultures or multi-gallon test batches.
- Foam Stopper for Erlenmeyer Flask – Keeps contaminants out while allowing airflow during fermentation.
Why Use Test Tubes & Flasks in Homebrewing?
- Enhance Fermentation Control – Grow healthy yeast in sterile conditions to ensure strong, predictable fermentation.
- Improve Sampling Accuracy – Use test jars and flasks for gravity readings without contamination.
- Reuse Yeast Efficiently – Collect and store yeast cultures from previous batches to save time and money.
- Experiment with Confidence – Small flasks and jars are perfect for testing recipe variations or hop additions.
Related Brewing Equipment
- Hydrometers & Refractometers – Pair your flasks with testing tools for precise readings.
- Brewing Testing & Measuring – Explore our full range of accurate testing instruments.
- How to Make Beer – Learn when and how to sample your brew safely.
Frequently Asked Questions
What is an Erlenmeyer flask used for in brewing?
An Erlenmeyer flask is used for creating yeast starters. Its conical shape helps oxygenate and mix the liquid for optimal yeast growth.
Can I use mason jars for fermentation?
Yes, small mason jars are great for collecting yeast sediment or fermenting small experimental batches. Just make sure they’re properly sanitized.
What size flask should I use for a yeast starter?
A 1000 mL Erlenmeyer flask works best for most 1-gallon brews, while larger batches may require a 2000 mL flask.
How do I prevent contamination during testing?
Always sanitize your tools before and after use with One Step No Rinse Cleanser to ensure clean samples.
Do I need a yeast starter kit?
If you brew frequently or with high-gravity recipes, a yeast starter kit helps ensure active fermentation and consistent results.
Set Up Your Brewing Lab
Whether you’re culturing yeast, testing wort, or collecting samples, Craft a Brew’s Test Tubes & Flasks help you achieve pro-level precision from your home brewery.
