Recent content by chrisgg

I've never seen this topic covered on any homebrew forum, though no doubt it has been on occasion. ABV (Alcohol By Volume) calculators generally focus on the original and final gravity of beer during primary fermentation, without taking the secondary fermentation into consideration. I'm using my...

Just think it might worth commenting. I've been full mash brewing since the 1980s and never aerated wort before fermentation and have always had a vigorous fermentation with a lid and airlock fitted over the fermentation bin. The gap above the fermenting beer and any dissolved oxygen must be...

The best way to tell if your mash technique is working properly is by the practical means of calculating your extraction yield efficiency from the grain, which is automatically done by most all-grain beer calculators. If you are getting somewhere around 85% efficiency, then everything is as...

I thought it had been decided in this thread that ATC pH meters can compensate for electrode errors in pH measurement (according to the Nernst equation), but not for any particular sample differences in pH at different temperatures. Correcting for electrode errors using ATC would still be useful...

Home brewing has been great during the COVID lockdown when no pubs have been open in the UK for long periods. The bars still can't serve alcohol unless with a meal to people seated at a table. I particularly like cask-conditioned ales served from cellars by hand pumps, so home brewed...

Thanks for your interesting discussions and good luck to you too in your brewing.

Thanks for the calculator. What will they come up with next?!

Interesting reference. I'm not saying you are wrong but the figures on Page 10 of your reference don't seem to back up your statement that "factually acidic liquids are indeed more acidic at higher temperatures". HCl (0.001 molar) was the only acid shown in the table and it didn't change but...

You are right there Vale71. ATC does not compensate for different readings due to effects on the sample being measured, but rather corrects for certain errors due to the electrode, such as electrode slope effects. I was quite wrong there. My apologies to you and anyone else involved, including...

I'm not fundamentally arguing against your points. Of course, you can record and report the pH reading at whatever temperature you want. However, I think it's confusing to quote the lower pH values taken at mash temperature, when people might think that it means the mash is more acidic and might...

This is quite wrong. A lower pH reading at mash temperature does not mean the mash is more acid. Nor does a higher pH reading at a low temperature make it more alkaline. The pH scale was only designed to be used at 25°C and does not apply exactly at higher and lower temperatures. For example, at...

My fault...I can simply enlarge the view to solve the column width problem and make the print easier to read, such as the types of malt addition drop-down list which is miniscule in the default size. It's a MashRite LLC 11/17/2020 spreadsheet by the way. If I boil beforehand, I can calculate the...

A minor point on the MME spreadsheet. Very good on the whole, but is there any way of widening the columns, as some are too narrow to fit in the data or words properly. I can't seem to edit the column width. Also, I can't see an option of boiling the water to reduce bicarbonate, which may be my...

Thanks for all that information. I'll try out the various methods in my next few brews, see how the pH turns out and whether it changes anything for the better. I only recently bought a pH meter a few weeks ago. Hence my sudden interest in the subject. Years ago I started adding gypsum to the...