Pictured: (12) 500 mL Polypropylene Jars with 53 mm closures by Bel-Art Products affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link

Part of Our Homebrew Tips and Tricks Series.  Check out the complete list – Homebrewing Tips, Tricks & Shortcuts!

• Note: This tip involves handling hot items.  Always use extreme caution when handling hot items to avoid being scalded.
• In my opinion, Polypropylene is a good material for this.  It is commonly used in lab bottles and has a higher heat resistance when compared to HDPE and LDPE.
• The pictured bottle is what I personally use.  There are lots of options out there.  Search Amazon for Polypropylene Lab Bottles to see what else may be available,  Some things to look for – proper temp ratings, use of food safe materials and microwaveable.
• Consult your yeast manufacturer for specific amounts, temperatures and timing recommendations.

Rehydrating Yeast Step by Step

• Place the appropriate amount of water in the bottle.  Some manufacturers recommend 10 grams of water per 1 gram of yeast.  Most packets are 11 grams.  That’s 110 grams.
• Use an accurate gram scale to weigh the water.  For a common measurement like 110 grams, I mark my bottle with a Sharpie so I can easily measure out rehydration water without needing to weigh every time.
• Place the lid on top of the bottle.  Important: Do not thread or tighten the lid!  It will burst if you do that.  You just want the lid setting loosely on top so that it can be sanitized by the steam.
• Microwave until the water comes to a full boil.
• Cooling to Temp, Slow Option: Let the bottle sit with cap loosened until it reaches proper hydration temperature.
• Cooling to Temp, Quick Option: Very carefully tighten the cap down.  Run cool water over the bottle to reach proper rehydration temp.  This is going to be hot, be very careful!  I use heat resistant gloves for this.  The cooling will most likely cause the container to collapse on itself and could slightly misform it.
• I use an Infrared thermometer to check temp as cooling commences.  Note that I do not open the bottle to check temp.  Just aim the IR thermometer at the mass of water inside the bottle.  I’m usually aiming for around 95 deg F.
• Sprinkle the dry yeast in the container and place the lid on back on the bottle.  Let this sit for 10 to 15 minutes.
• Gently swirl bottle to ensure the yeast is thoroughly mixed.
• Pitch when you’re ready.
• This method ensures a sanitary process.  The initial container and water are sanitized and there is no touching of the water with thermometers or stirring devices.
• You could use a similar method to produce yeast washing water.
• Search Amazon for “Polypropylene Lab Bottles” – Some things to look for – proper temp ratings, use of food safe materials and microwaveable.
• Search Amazon for “digital gram scale”
• Search Amazon for “infrared thermometer”
• Search Amazon for “heat resistant kitchen gloves”
• Review: Hands On: American Weigh 100g x 0.01g Digital Scale
• Related Categories: Yeast, Scales, Infrared Thermometers

Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.

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Pictured: Deli Food Storage Containers with Lids, 16 Ounce affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link

Part of Our Homebrew Tips and Tricks Series.  Check out the complete list – Homebrewing Tips, Tricks & Shortcuts!

• Note: This tip involves handling hot items.  Always use extreme caution when handling hot items to avoid being scalded.
• These containers are generally food safe and microwave safe.
• They also, generally, have tight lids.  Lids are either not quite airtight – That’s perfect for storing a yeast cake for your next batch as, the yeast may need to off-gas – Or airtight – That’s okay too as popping a lid off one of these isn’t usually a huge deal.
• You can sanitize these by microwaving some water in them.  Place the lid loosely on top so that it can get sanitized by steam.  Be very careful around boiling water and steam, you can get hurt.  Or, sanitize with your favorite food grade homebrew sanitizer.
• These type of containers are also handy for general storage, rehydrating yeast, sample collection and lots more.  Non-brewing related bonus… these are great for giving food-stuffs away as they are economical enough that you don’t need to worry about getting your container back.
• There are many offerings for these types of containers and they can change quickly.  Search Amazon for “pint deli containers” to see what’s out there.  Some things to look for – food safe materials, microwave safe and tight fitting lids.
• Credit for this tip goes to Denny Conn!
• Related Categories: Fermentation, Yeast

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Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions. tag:lnksfxd  rp:tips#35