Acids, bases, and pH – oh my! Part 10: A short video about altering the pH of our products

We had great fun in the workshop making a bunch of little videos about pH, pH indicators, adjusting, testing, and everything else to do with this topic. Here’s a little 2 minute video we made showing how phenolphthalein behaves when we add an acid and reduce the pH. We took a look at pH indicators…...

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Acids, bases, and pH – oh my! Part 9: Reducing or increasing the pH of our products

I went into quite a bit of detail in this post – Acids, bases, and pH – oh my! Part four: Testing our products with pH meters – but thought I’d write up a quick reference post on how to adjust the pH of our products. If you want to reduce the pH or make…...

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Acids, bases, and pH – oh my! Part 8 : How does a pH meter work?

If you want to catch up on this series, please check out the pH & pH meters section of the blog by clicking the link.  I thought I’d share a little more of the science of our pH meters with you as I found it really interesting! You don’t need to know this to test…...

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Acids, bases, and pH – oh my! Part 7: Care and feeding of your new meter – calibration, including using pH calibration fluids and powders

You’ve met all the meters I own and have learned how they work, so let’s do a recap of the things to consider when using and storing them. If you’d like to see the rest of this series, please visit the pH & information about meters, a new section we’ve created for the blog! You can…...

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Acids, bases, and pH – oh my! Part 6: Care and feeding of your new meter – taking it out of the box, rinsing & cleaning, storing, and getting rid of those white crystals

You’ve met all the meters I own and have learned how they work, so let’s do a recap of the things to consider when using and storing them. If you’d like to see the rest of this series, please visit the pH & information about meters, a new section we’ve created for the blog! You can…...

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Equipment review: Magnetic stirrer with hot plate

Before we start, I just wanted to remind you that any links to any shops of any sort, including Amazon, are presented not as affiliate links but to show where I purchased various things. I don’t benefit in any way if you purchase anything from any retailer anywhere on the blog.  As I shared with…...

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Equipment review: Magnetic stirrers and stir bars, plus thoughts on my Intllab version

I’m really enjoying having a magnetic stirrer doing all the mixing work for me so I can make other things, so let’s take a look at this new addition to my workshop! Please note, none of these are affiliate links or links from which I’ll benefit. I’m sharing where I found the things I bought,…...

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Equipment review: Comparing all the meters I’ve tested with an Iselux Ultra Mild body wash formula

Now that we’ve met all the meters I have, let’s take a look at which ones I liked and which ones I didn’t! I find it helpful to gather all my meters and test the heck out of them using the same fluids. You can see this in action in this post where I compared…...

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Equipment review: Etekcity pH meter

This one has a strange way of calibrating, by using a screwdriver to alter it if it doesn’t register exactly the reading you want.  This has an all in one glass electrode. It has an accuracy of +/- 0.05 pH. It doesn’t measure temperature and doesn’t have automatic temperature compensation, so if you’re measuring a liquid…...

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Equipment review: WeePro pH814 pH meter

This is the worst meter I’ve tested thus far, completely inaccurate and annoying. This has an all in one glass electrode. It has an accuracy of +/- 0.05 pH. It doesn’t measure temperature and doesn’t have automatic temperature compensation, so if you’re measuring a liquid that’s less than 20˚C and higher than 25˚C, it won’t be…...

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