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U.S. measurements Calculator

Post #1 made 14 years ago
by skunk.grunt
I'm sorry if this has been asked before, but I couldn't find the answer searching or browsing the forum.

Is there a Calculator that has been converted from liters to US Gallons?

If there is a thread for this, a link would be greatly appreciated.

Again, I apologize if this has been asked a gazillion times.

Post #4 made 14 years ago
by Yeasty
Maxi-BIAB Calculator Jun30.xls
This one you can switch between metric and US imperial. Be careful as this version of the calculator doesn't automatically update the entered values when you switch units.
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Last edited by Yeasty on 20 Nov 2011, 01:23, edited 4 times in total.
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Post #5 made 14 years ago
by skunk.grunt
Yeasty wrote:
Maxi-BIAB Calculator Jun30.xls
This one you can switch between metric and US imperial. Be careful as this version of the calculator doesn't automatically update the entered values when you switch units.
Thanks! This is exactly what I was looking for. :thumbs:

So I plugged my recipe into this spreadsheet, and it comes up with a total mash volume of 8.25 gallons. My pot is a turkey fryer that holds 7.5 gallons. So if I do a mash filled right up to the top, it should be a concentrated wort, and I can water it down to get the proper OG, right? Or am I way off here? :scratch:
Last edited by skunk.grunt on 20 Nov 2011, 01:39, edited 4 times in total.

Post #6 made 14 years ago
by Lylo
I am trying to help here but I am not sure of the dia. of your kettle? When I opened the calc. it showed 45.5 cm which is quite large.I switched to imp. and guessed at about 16" but that gives a mash volume of 9.63?If you can clarify this s.g I would like to follow along on this thread.Lylo
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Post #7 made 14 years ago
by skunk.grunt
Lylo wrote:I am trying to help here but I am not sure of the dia. of your kettle? When I opened the calc. it showed 45.5 cm which is quite large.I switched to imp. and guessed at about 16" but that gives a mash volume of 9.63?If you can clarify this s.g I would like to follow along on this thread.Lylo
My kettle is Just over 12" or 30cm. So with that measurement, it comes out to 9.87 gallons mash volume with a 10.5 lb. Grain bill.
Last edited by skunk.grunt on 20 Nov 2011, 02:12, edited 4 times in total.

Post #8 made 14 years ago
by PistolPatch
skunk.grunt wrote:So I plugged my recipe into this spreadsheet, and it comes up with a total mash volume of 8.25 gallons. My pot is a turkey fryer that holds 7.5 gallons. So if I do a mash filled right up to the top, it should be a concentrated wort, and I can water it down to get the proper OG, right? Or am I way off here? :scratch:
That's sort of right skunk and certainly an option however you will end up with less beer at the end of the day. This is because your efficiency will drop because you are 'rinsing' the grain with less water. There are two other things you can do...

You can use a bit more grain. Lower your efficiency in the spreadsheet by maybe 5% and use the new grain bill.

Or, you can heat the water you can't fit in the mash in a second pot on your stove and then 'dunk' your bag in the second pot hence giving the grain an extra rinse. If you do this method, don't alter your efficiency figure. In other words, don't increase your grain bill.

:peace:
PP
Last edited by PistolPatch on 20 Nov 2011, 22:19, edited 4 times in total.
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Post #9 made 14 years ago
by skunk.grunt
PistolPatch wrote:
skunk.grunt wrote:So I plugged my recipe into this spreadsheet, and it comes up with a total mash volume of 8.25 gallons. My pot is a turkey fryer that holds 7.5 gallons. So if I do a mash filled right up to the top, it should be a concentrated wort, and I can water it down to get the proper OG, right? Or am I way off here? :scratch:
That's sort of right skunk and certainly an option however you will end up with less beer at the end of the day. This is because your efficiency will drop because you are 'rinsing' the grain with less water. There are two other things you can do...

You can use a bit more grain. Lower your efficiency in the spreadsheet by maybe 5% and use the new grain bill.

Or, you can heat the water you can't fit in the mash in a second pot on your stove and then 'dunk' your bag in the second pot hence giving the grain an extra rinse. If you do this method, don't alter your efficiency figure. In other words, don't increase your grain bill.

:peace:
PP
I was just reading a (VERY long) BIAB thread over at homebrewtalk.com, and it seems your second option is a very popular method. I was considering doing that exact thing, but pouring the water over the grains in the suspended bag as a sparge, and the squeezing the bejeezus out of the bag. This would most certainly get me up to the level I would need for the boil. :thumbs:

How does everyone figure the initial volume of the mash if using two vessels? If I'm using 10.5 lbs. of grain, it can't be as easy as putting 10.5 lbs. of weight in the kettle and filling it with water? It seems there must be other dynamics in play when it comes to grain. :think:
Last edited by skunk.grunt on 20 Nov 2011, 23:25, edited 4 times in total.

Post #10 made 14 years ago
by PistolPatch
skunk, I'd be using as much water as you can in the main vessel while still allowing for comfortable headspace. Headspace is particularly important for taller, narrower pots where, as the bag lifts, it tends to still touch the pot sides making it act more like a coffee plunger being pulled up if that makes sense. Your pot might fall into this category.

BTW, what does your calculator tell you the total water needed is?
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Post #11 made 14 years ago
by stux
Grain displaces about .7L per KG

so you can work out your max strike volume

Then use that, but pull 2-3L out in a jug

Add your grain, then top up right to the edge of your pot( not forgetting to leave room for your lid)
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Post #12 made 14 years ago
by PistolPatch
Stux, I think skumk will have to allow more headspace than you or I would to be safe. This 'tall narrow' pot problem is one I only had a light bulb on about two months ago...

You and I have shorter wider pots and so we don't see the difficulties the other guys with tall narrow pots have to face. When we 'wideys' pull the bag, it immediately pulls away from the sides of our kettle. When the 'tallies' pull the bag, this may not happen. In some cases, if they pull the bag straight up, the wort may even be pushed up and over the sides of the kettle. (This is the upside down coffee plunger thing I mentioned).

I'm not too sure how many 'tallies' have this problem. We should find out :think:.
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Post #13 made 14 years ago
by skunk.grunt
PistolPatch wrote: BTW, what does your calculator tell you the total water needed is?
The calc says a total of 8 gallons. But I think I came up with a solution.

1. Heat up 6 gallons of water to mash temp.
2. Put the grains in.
3. As the water level rises, if it gets close to the top, open the spigot.
4. Drain water as needed.
5. Measure how much water was removed. (This is for the future, to subtract from 6 gallons, so I know how much to start with for future batches.)
6. Heat up 4 gallons of sparge water (to be on the safe side)
7. Mash for 60 minutes.
8. Sparge to get up to pre-boil volume.
9. Squeeze the hell out of the bag.
10. Boil.
11. Pray

Sound good?
Last edited by skunk.grunt on 21 Nov 2011, 19:02, edited 4 times in total.

Post #14 made 14 years ago
by skunk.grunt
Ha!! Thanks stux. You replied to me on homebrewtalk.com and here. I'm having the same conversation on two boards...

This is what I got from your post on the other board:

Thanks stux. In US, Your equation looked something like this to me.

Converted Grain Displacement .18 Pounds per gallon

Max Strikewater in Gal = Max Volume of Kettle in Gal (7.5 for me) - (Pounds of Grain (10.5 for me)* .18)

This = 1.89 Gal (I rounded up to 2). So I'm going to start with 5.5 Gal.
Last edited by skunk.grunt on 21 Nov 2011, 19:13, edited 4 times in total.

Post #15 made 14 years ago
by PistolPatch
skunk.grunt wrote:
PistolPatch wrote: BTW, what does your calculator tell you the total water needed is?
The calc says a total of 8 gallons. But I think I came up with a solution.

1. Heat up 6 gallons of water to mash temp.
2. Put the grains in.
3. As the water level rises, if it gets close to the top, open the spigot.
4. Drain water as needed.
5. Measure how much water was removed. (This is for the future, to subtract from 6 gallons, so I know how much to start with for future batches.)
6. Heat up 4 gallons of sparge water (to be on the safe side)
7. Mash for 60 minutes.
8. Sparge to get up to pre-boil volume.
9. Squeeze the hell out of the bag.
10. Boil.
11. Pray

Sound good?
I've only read 11 above so far and that doesn't sound good, it sounds hilarious!!!!

...

Okay, I've had a few more reads now. I'm confused on 3. The water level won't rise gradually, it will rise straight away. Do you mean that you will very slowly lower your bag of grain into the kettle?

Don't stretch the limits on your first brew skunk. Ending up with 15 litres of beer is as good a goal than ending up with 23 litres. (Haven't revised your numbers but I think you'll get what I mean.)

I seriously reckon just reduce your 'goal' so as you are not mucking around with heating up water in a second vessel. In other words, until you get a few BIAB's under your belt or buy a bigger kettle, be happy with brewing a lower volume of beer.

Does that make sense or make things easier?
PP
Last edited by PistolPatch on 21 Nov 2011, 23:11, edited 4 times in total.
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Post #16 made 14 years ago
by joshua
Good Day Skunk.Grunt, for us, American brewers...If you need 8.25 gallons for the batch, and you have a 7.5 gallon kettle, Question... do you have a 24 quart pot also???
You will need 1.25 quarts of space for 1 pound of wet grain and .18 gallons of water lost to grain, 12.5 quarts, say 13 quarts or 3.25 gallons of grain spaace plus 2 gallons for grain loss. SO for the main kettle you can start with 5.5 gallons of strike water and slowly add the grains, and the 7.0 total gallons should mash fine.

With the 3.25 gallons of grain space in your 7.5 gallon kettle, you'll only have 4.25 gallons or really 4.0 gallons of wort left when the grains are removed....NOW for that 24 quart pot .....Add/heat 4.0 gallons of water to it at your mash temperature (not strike since the grains are hot), and teabag the grains in this pot(SPARGE), This will give you some 1.0300 to 1.0400 gravity wort. Now squeeze the bag as best as possible. You should get around 4-4.5 gallons of the thinner wort to add to the 7.5 gallon kettle as make up water. Try ot to add too much of the makeup water as it may boil over. When all the make up water is in the 7.5 gallon kettle, you can start the hops for your 60 minute additon. This sounds complicated, but is really quite easy...Check Maxi BIAB at http://www.biabrewer.info/viewtopic.php?f=25&t=190 Hope this helps
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Post #17 made 14 years ago
by skunk.grunt
PistolPatch wrote: Okay, I've had a few more reads now. I'm confused on 3. The water level won't rise gradually, it will rise straight away. Do you mean that you will very slowly lower your bag of grain into the kettle?

Don't stretch the limits on your first brew skunk. Ending up with 15 litres of beer is as good a goal than ending up with 23 litres. (Haven't revised your numbers but I think you'll get what I mean.)

I seriously reckon just reduce your 'goal' so as you are not mucking around with heating up water in a second vessel. In other words, until you get a few BIAB's under your belt or buy a bigger kettle, be happy with brewing a lower volume of beer.

Does that make sense or make things easier?
PP
Yes, I mean to lower the bag of grains in very slowly so I can monitor the water level carefully.

And I care more about the numbers than I do the volume. I just want to make sure I start with the right volumes so I a) get as close to my target numbers as possible, and b) avoid any major mishaps, like boilovers, etc.

Thanks for the tips though!
Last edited by skunk.grunt on 22 Nov 2011, 04:37, edited 4 times in total.

Post #18 made 14 years ago
by skunk.grunt
joshua wrote:Good Day Skunk.Grunt, for us, American brewers...If you need 8.25 gallons for the batch, and you have a 7.5 gallon kettle, Question... do you have a 24 quart pot also???
You will need 1.25 quarts of space for 1 pound of wet grain and .18 gallons of water lost to grain, 12.5 quarts, say 13 quarts or 3.25 gallons of grain spaace plus 2 gallons for grain loss. SO for the main kettle you can start with 5.5 gallons of strike water and slowly add the grains, and the 7.0 total gallons should mash fine.

With the 3.25 gallons of grain space in your 7.5 gallon kettle, you'll only have 4.25 gallons or really 4.0 gallons of wort left when the grains are removed....NOW for that 24 quart pot .....Add/heat 4.0 gallons of water to it at your mash temperature (not strike since the grains are hot), and teabag the grains in this pot(SPARGE), This will give you some 1.0300 to 1.0400 gravity wort. Now squeeze the bag as best as possible. You should get around 4-4.5 gallons of the thinner wort to add to the 7.5 gallon kettle as make up water. Try ot to add too much of the makeup water as it may boil over. When all the make up water is in the 7.5 gallon kettle, you can start the hops for your 60 minute additon. This sounds complicated, but is really quite easy...Check Maxi BIAB at viewtopic.php?f=25&t=190 Hope this helps
Right! This is almost exactly what I'm going to do, except my second kettle is a 20 qt., and I was going to pour the water over the suspended grain bag instead of dunking the grains in the second kettle.

Man, you guys sure are a wealth of advice. :clap:

Thanks so much!
Last edited by skunk.grunt on 22 Nov 2011, 04:39, edited 4 times in total.

Post #19 made 14 years ago
by joshua
Good Day Skunk.Grunt, "Fly-Sparge" is good also, 20 quarts is good since it will finish out around 17-18 Quarts, Good luck with the brew and I hope it comes out fine!
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Post #21 made 14 years ago
by Lylo
I think you will probably end up with a bit of a mess on the floor and your self if you try pouring the hot water into your suspended bag! :nup: I made a great drainer this wkend.I just took two plastic buckets approx the same size(the kind with ribs near the top outside so they stack without bottoming out).I drilled a bunch of 3/8 hole in bottom of one of them and stacked it onto the other. Now I just lift my bag clear,slip the stacked buckets under it and set it all on the floor.I can now squeeze it out a bit as I raise my temp to boil.Worked great! :party:
P.S. I found a local bakery that was happy to donate some 4 gal.pails to my cause.
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Post #22 made 14 years ago
by joshua
Good Day Lylo, Sound like a good bucket-bag press. Would a 3rd bucket help press the bag??
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Post #23 made 14 years ago
by Lylo
Possibly,I just snuck a close fitting pot lid out of the kitchen while my wife wasn't looking!
I'll try a pic 2nite.
Come to think of it I have lots of these pails,in fact 1 was right beside me before I purloined said pot lid.
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Post #24 made 14 years ago
by Lylo
My drainer
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Last edited by Lylo on 22 Nov 2011, 09:57, edited 4 times in total.
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Post #25 made 14 years ago
by joshua
Looks Great Lylo, Only -17C??? you must be waiting for winter!!
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