Search found 89 matches

by Carnot
Fri Feb 16, 2018 11:23 pm
Forum: Cleaning, Sanitation and Sterilisation
Topic: Low cost Starsan alterantive
Replies: 20
Views: 3093

Low cost Starsan alterantive

Starsan is not exactly cheap. Looking at the ingredients it is not exactly complicated. 50 % of the ingredients is phosphoric acid and the remainder is water and dodecyl benzene sulphonic acid (DDBSA). The former is easy to obtain. The latter not so simple. But Mistral Chemicals supply DDBSA, but on...
by Carnot
Fri Feb 16, 2018 10:56 pm
Forum: Brewing Liquor
Topic: ooh look another water treatment question
Replies: 20
Views: 3170

Re: ooh look another water treatment question

Orlando,
A new battery always helps. Wort is a must. A joule is a jewel.
by Carnot
Fri Feb 16, 2018 4:14 pm
Forum: Brewing Liquor
Topic: ooh look another water treatment question
Replies: 20
Views: 3170

Re: ooh look another water treatment question

Maybe your problem is due to the new electrode even if you have done the calibrations correctly. By chance was it dry or wet when unpacked? The electrode membrane might need regenerating or possibly if the lectrode has been stored in demin water there has been some leaching of the electrolyte. Norma...
by Carnot
Fri Feb 16, 2018 3:51 pm
Forum: Cider Making
Topic: First go with the new apple press
Replies: 8
Views: 1617

Re: First go with the new apple press

Your are right. Cider is a waiting game. Waiting for it to mature and waiting for the next apple crop. I do not know what juice yield you achieved but we reckon on about 2kg apples per litre juice and the SG usually hits around 1055 +/-. Last year we we did 120 kg of apples and could not face the fo...
by Carnot
Fri Feb 16, 2018 12:44 am
Forum: Brewing Liquor
Topic: Another Salifert question
Replies: 27
Views: 3656

Re: Another Salifert question

Aleman, What make you think I use the water company report. Go back several posts. Total Hardness, Calcium and Alkalinity are dead easy especially if you have auto burettes; check these parameters and then adjust to suit your brew. The only reason I look at the water company report is for trace mate...
by Carnot
Thu Feb 15, 2018 8:23 am
Forum: Brewing Liquor
Topic: Another Salifert question
Replies: 27
Views: 3656

Re: Another Salifert question

Aleman, The whole reason why water chemists reports as CaCO3 is down to keeping things simple. Calcium carbonate has a molecular weight of 100 which makes it very convenient for calculations. Standard tests for alkalinity, total hardness and calcium hardness were typically made using standard 0.02N ...
by Carnot
Wed Feb 14, 2018 8:01 pm
Forum: Cider Making
Topic: First go with the new apple press
Replies: 8
Views: 1617

Re: First go with the new apple press

You will do nothing wrong by racking into another demi-john. Give a week or even two and you should see it clear. Put it in a shed to get it cooler will also probably help. Just a thought, did you add any pectinase at the start? I usually add the pectinase the day before yeast pitch. I always prepar...
by Carnot
Wed Feb 14, 2018 7:51 pm
Forum: Brewing Liquor
Topic: Another Salifert question
Replies: 27
Views: 3656

Re: Another Salifert question

Aleman, you clearly have a problem with anything I say. Hardness, permanent or temporary is due to calcium and magnesium cations in solution. Temporary hardness is assumed to be due to calcium and magnesium ions precipitating from solution as the carbonate due to bicarbonate ion decomposition. At el...
by Carnot
Wed Feb 14, 2018 6:37 pm
Forum: Cider Making
Topic: First go with the new apple press
Replies: 8
Views: 1617

Re: First go with the new apple press

That looks to be quite a good start to your cider making. Your fermentation should just about be complete by now and hopefully the gravity will be down somewhere just over 1.00. I would rack it into another demi-john for a week or two to clear and then bottle or whatever. I made 22 ltr batches in an...
by Carnot
Tue Feb 13, 2018 8:31 am
Forum: Brewing Liquor
Topic: Another Salifert question
Replies: 27
Views: 3656

Re: Another Salifert question

Aleman, Not sure what problems that you have with English but I specifically said that that hardness is assumed to be due to Ca and Mg ions( though other trace ions will also behave similar). There must be a balance between cations(+ve) and anions (-ve). Therefore take my own water Total Hardness 24...
by Carnot
Mon Feb 12, 2018 7:27 am
Forum: Brewing Liquor
Topic: Another Salifert question
Replies: 27
Views: 3656

Re: Another Salifert question

I can understand the confusion that some people are having with hardness determinations and alkalinity. The term hardness came about from soap manufacturers and the use of steam in industry. Hardness is normally defined in terms of temporary and permanent hardness, which is usually assumed to be due...
by Carnot
Sat Jan 06, 2018 10:18 pm
Forum: Mead
Topic: Mead final gravity
Replies: 6
Views: 1446

Re: Mead final gravity

Most of my batches of mead go down to about 0.998 FG starting around 1.1 O.G. This gives a medium dry mead with quite a punch. I doubt if you will have done any real harm. Your mead will likely be on the medium side with a slightly lower alcohol content. You will have to wait to find out if it is re...
by Carnot
Sun Dec 24, 2017 7:31 pm
Forum: Kit Brewing
Topic: Label glue removal
Replies: 17
Views: 3001

Re: Label glue removal

Not sure if I go with that thinking. Sodium bicarbonate in toothpaste is viewed as a low abrasive option. I am sceptical about this as in the mouth the bicarbonate will dissolve in the moisture. What it will do is generate carbon dioxide and neutralise acids in the mouth which will help tooth enamel...
by Carnot
Sun Dec 24, 2017 1:16 pm
Forum: Kit Brewing
Topic: Label glue removal
Replies: 17
Views: 3001

Re: Label glue removal

As long as the white spirit is applied to the bottle exterior the chances of contamination are negligible to non existent. I would be more concerned about certain surfactants in cleaning solutions than white spirit as these are polar and will cling. Lighter hydrocarbons (hexane/ heptane types which ...
by Carnot
Fri Dec 22, 2017 10:32 pm
Forum: Kit Brewing
Topic: Label glue removal
Replies: 17
Views: 3001

Re: Label glue removal

Label adhesives are normally hydrocarbons resins, which are a sort of rubbery resin. Using the convention that like will dissolve like the best option is to look for something similar. Viola -white spirit. White spirit will shift these resins with relative ease and is fast drying. Soak off most of t...