Jim's Beer Kit

Quick answer. Not very accurate especially if the sample is coloured. Be very careful with pH meters. A pH determination is really only applicable in aqueous solutions- that means water. Once you have significant organic material the result is not necessarily accurate. The killer for pH probes is th...

I would not hold your breath on this concept of >5.5% alcohol being a sanitiser. If you wish to preserve foods or other organic matierals then 5% alcohol is not going to get you very far. Why do all the Covid santisers require 70% minimum alcohol ( ethanol and isopropanol). You might like to review ...

I think that your problem lies with the PBW which is a mix of sodium percarbonate and sodium metasilicate. This will raise the pH and combined with your hard water it has possibly caused carbon dioxide to react with calcium ions and precipitate. The long soak is the problew. I have never been a fan ...

As not much is posted on this thread for mead, if you are a mead fan here is an offer you cannot refuse. Up for grabs are 10 bottles of mead of 25,50 and 70 CL which will be sent at no cost to those who plead the best story of why I should send them a bottle at absolutely no cost. All that I ask is ...

The hose will be plasticised PVC and the plasticiser will most likely be either DOP or DiNP, both of which are ortho phthalate plasticisers. If the hose is more than 15 years old it is likely to be DOP. In either case it will not kill you and unlikely to harm you. Plasticiser will migrate over time,...

The reject rate for an RO is a function of the mineral ,loading AND the water pressure. For water to permeate through the membrane requires the osmotic pressure to be overcome. As the mineral loading increase so does the osmotic pressure. If you have a low mains pressure then there will be a very hi...

I will chip in my two cents worth but do not want to get embroiled in a pointless discussion. Several observations. You have a very thin water, which will be lacking any buffering in its delivered state. Calcium carbonate is sparingly soluble in water- typically about 40-50 mg/L depending on the oth...

That looks a nice neat job. I think you made the right choice. Fit and forget.

Be careful here. Make sure that the flange has an o ring groove otherwise you are likely to find that the ring will squash out. A Groove will trap the o ring in position. The other option, one I have done many times, is to use a Dowty seal, preferably a stainless one. https://www.ebay.co.uk/itm/DOWT...

Guy, I do not think 16ppm vs target of 20 ppm is going to make much difference. Test kits are never super accurate so your 16 might even be 14 or 18. When you are getting to the extreme end of the range it is always a little tricky. When you get to 20 ppm alkalinity there is not much alkalinity buff...

Starsan is phosphoric acid and DDBSA. It will not have much effect on the septic tank system. If anything the phosphorous will act as a nutrient and the DDBSA will biodegrade without any adverse. I would switch the VPW to PBW, since the latter contains sodium percarbonate which will very quickly deg...

I am pretty sure that as per the other posters your scum on the surface is limescale a.k.a. calcium carbonate.Your water is hard but far from ultra hard. When you boil the water the bi-carbonate (soluble) will decompose and precipitate as calcium carbonate. I suspect that the vigorous boil is not al...

You were lucky with your cappings; they are much wetter than what my wife produces. She drains the cappings to avoid too much give-away. I have so far about 24 buckets of cappings to deal with from about 900 kg of honey produced this year. At 1.1080 I would reckon your mead will be fairly dry and yo...

I would not be too hard on Murphy not being able to determine sodium content. Sodium and Potassium are not particularly easy to determine, and require the use of a flame ionisation spectrophotometer i.e. high cost. Nitrate and sulphate are also not that simple. I would consider a fee of £26 for the ...

It's a bit of a drag but you will find apples for free in your local area if you look hard enough. Often the owner is glad to get rid of them. Ideally you need a mix of cookers and eaters. All eaters will result ins a cider without much bite. The cookers have more tartness due to malic acid and this...