How many uses of a home improvement store-purchased oxygen bottle can I expect assuming 60 second uses?
I'd guess about 6-8 batches. I usually do 60 seconds and I haven't kept track but I'd guess that many uses. Works out to about 1-2$ per beer.
At 60 seconds I would get around 5 also. Higher gravity beers I let it go for around 90 seconds. I would suggest keeping at least one extra full tank on hand. I also mark the side with permanent maker so I know how many batches I've used it on.
I've gotten atleast 4 so far, 1 being a 1.125 RIS that I did 120 seconds. Hasn't run out, but could the next time I use it. Good thread, reminds me to pick up another bottle before I brew again... just in case.
The key is to make sure you aren't oxygenating at a flow so high that the oxygen bubbles exit the surface of the wort. If you are cranking it, you are just wasting oxygen.
I think ~6 is right for me. Although there are cheaper ways to get oxygen, these things are pretty convenient (easy to store, convenient point of purchase) and still pretty inexpensive.
How much are people paying for these? Also where do you purchase them? Home depot sells them for $10 but I think I have seen them advertised online at Kmart for $5.
I'm on like batch 18 of my current bottle. All either 60 or 90 sec injections (mostly 90 sec). Basically I open the valve till bubbles start flying up, then back it down until just above the point where the bubbles disappear.
$5 is a great price, I buy them when I see them on sale at various places. I think I avg about $8 a popl
http://www.kmart.com/craftsman-oxyg...0954916000P?prdNo=13&blockNo=13&blockType=G13 Not sure if this is smaller than the ones I get. I will have to check when I get home.
I think 1.4 oz is the normal size. I'll be picking up a few of those this weekend, thats a good price
I get 12-15 5-gallon batches per canister. Like others have said above, the key to getting your money's worth is keeping all the O2 in the wort. Bubbles on the surface means the O2 is not dissolved in the wort.
