Category Archives: pH

High Accuracy pH Meter by Orapaxi – $25.10 + Free Shipping, w/Coupon

Digital PH Meter for Water with ATC - PH Tester 0.01pH Resolution High Accuracy Water Tester with 0~14 pH Measurement Range for Household Drinking, Hydroponics, Aquarium, RO System and Lab by ORAPXI

Digital PH Meter for Water with ATC – PH Tester 0.01pH Resolution High Accuracy Water Tester with 0~14 pH Measurement Range for Household Drinking, Hydroponics, Aquarium, RO System and Lab by ORAPXI

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From the product description, check product page for current description, price and availability:

  • HIGH ACCURACY: Tester Has a Sensitive Electrode Sensor to ensure that the solution reading is obtained quickly and accurately, and the large-screen LCD is easy to observe readings. The Included detailed manual will show you how to calibrate and get the accurate reading.
  • AUTOMATIC CALIBRATION: Often suffer from calibration problems? The ORAPXI digital pH test equipment with the 3-point calibration procedures, which can automatically identify the calibration fluid and give you your reading in a snap.
  • AUTOMATIC TEMPERATURE COMPENSATION: Auto temp compensation (ATC) ensures accuracy in various temperatures (32°F~140°F), It can solve the possible error perfectly caused by the change of liquid temperature, so as to make the pH readings more accurate.
  • IDEAL FOR ANY HOUSEHOLD: You can use this small but powerful, device to measure your aquarium, pool, pond in a garden, bath tub to test the levels of Ph value, It can also be used to measure drinking water, RO System, spa, soap mixtures, food, wine, beer or any other liquids.

 

You can use a pH meter to check the pH of your water, mash, [test Star San effectiveness] and finished beer.

10/17/20 2 PM Central: This is selling for $26.99.  That in and of itself is the best historical third party Amazon price I found, notwithstanding Lightning Deals or coupons. Click on “Save 7% with coupon” and the price drops to just $25.10 at checkout.  Shipping is also free to many US addresses. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

Digital PH Meter for Water with ATC – PH Tester 0.01pH Resolution High Accuracy Water Tester with 0~14 pH Measurement Range for Household Drinking, Hydroponics, Aquarium, RO System and Lab by ORAPXI – note that multiple variations of this product may be available, as such a different version may appear at this link


More: Recent Amazon Finds

What’s the Shelf Life of Star San? – Testing Star San’s Effectiveness

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Star San is my sanitizer of choice.  It’s food safe and no rinse.  Required contact time is one minute.  It has worked very well for me for quite some time and I’m convinced that it’s one of the most economical solutions available if you use the spray bottle method [See: Star San Tips, Tricks and Guidelines]

What’s the Shelf Life of Star San?

With regards to mixed Star San Solution: The official answer is probably… you should mix a fresh batch each time you use it.  To really test the effectiveness, you need to titrate the solution and test the PPM.

Practically speaking, many homebrewers use and re-use Star San.  If you’re going to do that, the solution should be relatively clear and the mixture should have a pH of under 3.5.  Previously the recommendation I received from Five Star Chemicals was that the solution should by crystal clear, however, for bottles of Star San not older than 1 year (check the manufacture date on the bottle) crystal clarity isn’t necessarily a requirement.

From “Better Safe Than Sorry” Department: If you doubt a mixture it’s better to be safe, dump it and make a fresh batch

More About Clarity

Years ago, I received this information from Five Star Chemicals:  “The cloudy solution could be okay, but it could be bad. The cloudiness is the surfactant coming out of solution. It has reacted, or is reacting with the metals in the water. I don’t know if it is still good, because I don’t know how much surfactant has reacted. I error on the side of caution and suggest that you don’t even mess with it. Use DI water.

Previously testing the effectiveness of diluted Star San involved two things… Crystal clear solution and pH under 3.5.

As of this update on 9/2018, clarity is not considered an issue – via Emily Lovato at Five Star Chemicals

My personal opinion (not official) is that crystal clear Star San is preferable to cloudy Star San.  If you have hard water and your diluted Star San mixture immediately turns cloudy, and you want it to be clear, you can use RO or distilled water.

 

With regards to Star San concentrate: Five Star Chemicals recommends replacing bottles of Star San concentrate that are over 2 years old.  – via Emily Lovato at Five Star Chemicals.

What size to buy?  Because of the 1 or 2 year freshness recommendation via Five Star, my recommendation to most homebrewers is to purchase the smaller 8 oz bottle of Star San.  If you’re using the spray bottle method [See: Star San Tips, Tricks and Guidelines] 8 ounces of Star San should last many homebrewers for at least a year.  My reasoning on the 8 oz recommendation is… why buy a larger bottle that you won’t be able to get through before it needs to be replaced?  There’s a calculator in my tips post to help you estimate your usage.

Testing pH of your diluted Star San Mixture…

Testing pH question involves using either a pH meter or strips.  The pH meter option is straightforward [See: Amazon’s Best Sellers in Lab pH Meters].  pH Meters can be costly and do require calibration, maintenance and, eventually, replacement.  Because of that, I wanted to find pH strips that work well for this task.  I ended up trying a few different styles and manufacturers before finding strips that I think work well.

cln_img_0509I settled on Hydrion Pro 9200 (0.0 to 6) pH Indicator Strips – via Amazon

Continue reading

Dr Meter PH838 High Accuracy, Backlit pH Meter – $25.64! + Free Shipping, w/Coupon

Dr.meter Upgraded PH838 0.01 Resolution High Accuracy Backlit Two-Color LCD Display pH Meter with ATC, 0-14pH Measurement Range with Data Hold Function

Dr.meter Upgraded PH838 0.01 Resolution High Accuracy Backlit Two-Color LCD Display pH Meter with ATC, 0-14pH Measurement Range with Data Hold Function

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From the product description, check product page for current description, price and availability:

  • ▶ 【Notification】Calibrate once per week if you often test solution of PH 10, or once per half month for neutral solutions. The 250ml calibration solution for multiple uses (10ml or so each time). Then rinse the electrode with pure water before next test. Rinse and rest 3-5 min before conversing from strong acid to strong alkaline and vice versa.
  • ▶ 【Automatic Calibration】 We make your job faster and easier than ever with this convenient PH tester! With the 3-point calibration procedures, your PH testing devicewill automatically identify the calibration solutions to give you your reading in a snap.
  • ▶ 【Automatic Temperature Compensation】 Temperature can affect reading levels, our PH meter’s automatic temperature compensation can ensure that you’re getting the best possible reading. Unlike other PH metersthat only have a range of 0-50 degree, ours has a even better range of 0-70 degree, so you can test with confidence in any environment.
  • ▶ 【Clear Digital Display with Alerts】 Tired of squinting at a small screen to get your readings? Enjoy this PH meter’s large, backlit LCD screen that displays the information in an intuitive layout so you can still see even in low visibility situations. When the PH value is lower than 3.5 or higher than 12.5, the white digital display will change to red and flash to alert you.
  • ▶ 【User Friendly】 You can easily replace the 2 AAA batteries when it’s time, and you can also activate the 15-minute auto-off functionality to save battery. Plus, it even comes with a storage case to keep it safe and protected when you’re on the go.

 

You can use a pH meter to check the pH of your water, mash, [test Star San effectiveness] and finished beer.

10/11/20 10 AM Central: This is selling for $26.99.  That in and of itself is the best historical third party Amazon price I found, notwithstanding Lightning Deals or coupons. Click on “Save 5% with coupon” and the price drops to just $25.64.  Shipping is also free to many US addresses. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

Dr.meter Upgraded PH838 0.01 Resolution High Accuracy Backlit Two-Color LCD Display pH Meter with ATC, 0-14pH Measurement Range with Data Hold Function – note that multiple variations of this product may be available, as such a different version may appear at this link


More: Recent Amazon Finds


Beverage Doctor pH Meter – $48.95 + free shipping

Beverage Doctor - Pen Style PH Meter

Beverage Doctor – Pen Style PH Meter

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From the product description, check product page for current description, price and availability:

  • Water Resistant IP-67
  • 0-14 pH with 0.01 pH accuracy
  • Auto temp compensation (ATC)
  • Replaceable sensor/probe
  • 3 point calibration (4.00/6.86/9.18pH)

 

10/9/20 9 PM Central: This has dropped to $48.95.  That’s the best historical third party Amazon price I found, notwithstanding Lightning Deals or coupons. Shipping is also free to many US addresses. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

Beverage Doctor – Pen Style PH Meter – note that multiple variations of this product may be available, as such a different version may appear at this link


More: Recent Amazon Finds

Apera Instruments AI223 SX620 pH Meter Kit

Apera Instruments AI223 SX620 pH Pen Tester Kit with 0.01 pH Accuracy, 3-Point Auto. Calibration ATC 60 Degree C, Plastic; Glass

Apera Instruments AI223 SX620 pH Pen Tester Kit with 0.01 pH Accuracy, 3-Point Auto. Calibration ATC 60 Degree C, Plastic; Glass

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From the product description, check product page for current description, price and availability:

  • The smallest pH pen with reliable testing performance for regular liquid e.g. pools, hydroponics, aquaculture, cooling towers, beverage making, body fluid, etc
  • ±0.01 pH accuracy; Automatic 3-point calibration; 0-60˚C Automatic Temp. Compensation
  • Slim replaceable probe, suitable for test tubes
  • Intelligent functions: switch from ˚F to ˚C, automatic power-off, pH probe invalidation reminder (remind you to replace the probe for better performance)
  • Complete kit: 3 types of premixed calibration solutions (4, 7, 10) and storage solution (3M KCL) all in one portable case

 

You can use a pH meter to check the pH of your water, mash, [test Star San effectiveness] and finished beer.

What are others saying?  Search this product’s Amazon reviews for “brew”

Apera Instruments AI223 SX620 pH Pen Tester Kit with 0.01 pH Accuracy, 3-Point Auto. Calibration ATC 60 Degree C, Plastic; Glass


More: Recent Amazon Finds

TDS Meter [check your brewing water & double check your filter]… $5.99 + Free Prime Ship

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.


From the product description, check product page for current description, price and availability:

  • Highly efficient and accurate due to its advanced microprocessor technology, one measurement can be completed within 5 seconds.
  • Built-in Digital Thermometer, Display: Large and Easy-to-read LCD Screen.
  • Long battery life cycle: It’s used with 2pcs 1.5V batteries, can use more than 3 years, it will be power-off automatically after stop using in 5 minutes to save the battery.
  • High accuracy: +/- 2% Readout Accuracy Testing, the titanium alloy probe has high test accuracy, which can avoid the interference of magnetic field in water.

TDS meters are handy for checking your RO filter [See: Review – Portable Reverse Osmosis Water System] or for checking purchased distilled or RO water.  Some water processors add minerals back for flavor.  A TDS meter will allow you to make sure you’re getting what you want.

10/1/20 2:30 AM Central: This is selling for just $5.99. That’s the best historical third party Amazon price I found, notwithstanding Lightning Deals or coupons. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc. – note that multiple variations of this product may be available, as such a different version may appear at this link


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(100) 3ml Transfer Pipettes [Refractometer & pH Samples, measuring Star San] – $4.99 + Free Prime Ship

Karter Scientific 206H3 3ml Graduated Transfer Pipette, Cap 7ml, 1/2ml Grads, 155mm (Pack of 100)

(100) Transfer Pipettes from Karter Scientific.  Total of 5 ml capacity, 3 ml of which are graduated in 1/2 ml increments.  Comes with a dispenser box.

More Info

From the product description, check product page for current description, price and availability:

  • Capacity: 7.0ml
  • Graduations: 0.5, 0.5ml to 3.0ml
  • Material: LDPE
  • Length: 155mm

Karter Scientific is a registered trademark in United States of America. To maintain quality control, authorized permission is required in the resale of our products. Karter Scientific liquid handling offerings include a full selection of sterile and non-sterile Low-Density Polyethylene (LDPE) transfer pipettes. LDPE is non-toxic and chemically inert to biological fluids and most acids and can withstand a temperature range from -50°C to 90°C. Pipettes may be heat-sealed and frozen in liquid nitrogen for sample preservation.


 

Use for collecting refractometer samples, pH samples and more on brew day and beyond.

What are Other’s Saying?   Search this product’s Amazon reviews for “refractometer” – may include reviews for other sizes or variations

You could also use these to dose out Star San for mixing 1 gallon batches.  See: Star San Tips, Tricks and Guidelines – you’d use the 3 mL marking, twice (total of 6 mL) to do that.

9/20/20 8:30 PM Central: These have dropped to $4.99.  That figures to just 5 cents each. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability.

Transfer Pipette, 7.0ml Capacity, 3.0ml Graduated, Large Bulb, 155mm, 3.2ml Bulb Draw, Karter Scientific 206H3 (Pack of 100) – note that multiple variations of this product may be available, as such a different version may appear at this link


Also Consider: Globe Scientific 139050 LDPE Extra Long Transfer Pipet, Non-Sterile, 300mm Length, 23.0mL Capacity (Box of 100) – these are about 12″ long and, depending on the fermenter and batch size, are long enough to take refractometer samples from the fermenter.

More: Recent Amazon Finds

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.  prod:B005Z4QVZ4


100 x LabRat pH Strips 0-14 pH, .5 pH Intervals – $6.74

pH Test Strips, Universal Application (pH 0.0-14.0, 0.5 pH Intervals), 100 Strips

pH Test Strips, Universal Application (pH 0.0-14.0, 0.5 pH Intervals), 100 Strips

9/16/20 5 AM Central: These are selling just $6.74,  Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page 

pH Test Strips, Universal Application (pH 0.0-14.0, 0.5 pH Intervals), 100 Strips – note that multiple variations of this product may be available, as such a different version may appear at this link


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Beverage Doctor – Waterproof pH Meter via MoreBeer – $39.99, limited availability + free ship eligible

Beverage Doctor - Pen Style PH Meter MT624

Beverage Doctor – Pen Style PH Meter from MoreBeer

More Info

From the product description, check product page for current description, price and availability:

Looking for an easy to use pH meter at a great price? The Beverage Doctor is here to help you get your mashes to the perfect pH.

The Beverage Doctor will get you a very accurate reading with its 0.01 pH resolution. The calibration process couldn’t be easier to perform, just place the probe in the buffer solution closest to pH of the sample you’ll be testing and press the button! This pH meter also includes ATC (Automatic Temperature Control) so you don’t have to get your sample all the way down to room temperature before you take your reading.

The Beverage Doctor features a replaceable probe in case yours is lost or damaged. Homebrewing can be a tough environment for your pH probe so we feel you shouldn’t have to buy a whole new pH meter everytime your probe breaks. The cap that holds the probe storage solution has a very tight seal and should prevent your probe from drying out while not in use. Don’t worry about getting this meter wet either, because the entire unit is waterproof!

  • Replaceable probe
  • ATC (Automatic Temperature Control)
  • Waterproof
  • Accurate to 0.01 pH
  • Easy 3 point calibration
  • LR44/AG13 batteries included

 

Limited Availability Wine Deal of the Week:  As of this posting, this is marked down to $39.99 as a MoreWine Deal of the Week.  Shipping is also free to addresses in the contiguous US with most $59 Orders.  Quantities are limited. Check the Deal of the Week section – Here – to see if this is still available.

Note that you can redeem this on either MoreBeer or MoreWine.  Use coupon code WINEDEAL to get this discount.

Beverage Doctor – Pen Style PH Meter MT624

Update: This promo has expired or pricing, availability or description has changed – Check the supplier’s site or product page for current availability

Recent Deals!  Last Fifty Finds

MoreDeals! at MoreBeer:

More: Recent MoreBeer Finds

Looking for a MoreBeer Deal? – Today’s Deal of the Day | Sale Items | MoreBeer Deals

TDS Meter [check your brewing water & double check your filter]

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc.


From the product description, check product page for current description, price and availability:

  • Highly efficient and accurate due to its advanced microprocessor technology, one measurement can be completed within 5 seconds.
  • Built-in Digital Thermometer, Display: Large and Easy-to-read LCD Screen.
  • Long battery life cycle: It’s used with 2pcs 1.5V batteries, can use more than 3 years, it will be power-off automatically after stop using in 5 minutes to save the battery.
  • High accuracy: +/- 2% Readout Accuracy Testing, the titanium alloy probe has high test accuracy, which can avoid the interference of magnetic field in water.

TDS meters are handy for checking your RO filter [See: Review – Portable Reverse Osmosis Water System] or for checking purchased distilled or RO water.  Some water processors add minerals back for flavor.  A TDS meter will allow you to make sure you’re getting what you want.

TDS Meter, Water Quality Tester Filter Pen, Accuracy Testing Water Quality for Drinking Water Purity Test, Swimming Pools, Aquariums, Etc. – note that multiple variations of this product may be available, as such a different version may appear at this link


More: Recent Amazon Finds