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Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
02-17-2013, 01:12 AM
Post: #21
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Personally ... I stand my brushes upright but I'm not adverse to a fancy bit of chrome in the bathroom if it fits my brush.
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02-17-2013, 06:47 PM
Post: #22
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-17-2013 12:08 AM)ShadowsDad Wrote:  Biggrin

FWIW, you do NOT want to put your brush in a centrifuge! Unless you want to re-assemble the brush every day.

Wink OMG! I could envision a CAD in shave nooks... not the best thing for a brush by a long shot.

Just too funny!
That's why we would need a special brush centrifuge, that doesn't spin it so hard they come apart. :)
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02-18-2013, 12:02 AM
Post: #23
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
Lee, not to be picky....but am I reading this part correctly?

(02-17-2013 11:25 PM)asharperrazor Wrote:  Test Results
Bone dry weight: BU - 59 BD - 60
Saturated weight: BU - 66 BD - 65
Water weight in both brushes - 5 grams

If those numbers and labels are right, that would be 7 grams of water left in the BU brush vs. 5 grams left in the BD brush? I know it doesn't sound like a lot, and with a 1 gram margin of error in the scale you could be rounding it out to say it's close to equal....but if that were accurate that's a 40% increase in moisture on the BU brush....could be construed as a major contributing factor to the addition dry time
(I don't personally think so, I'm on your side that bottom down/tips up is better, just playing devil's advocate here Tongue)
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02-18-2013, 12:27 AM (This post was last modified: 02-18-2013 12:28 AM by asharperrazor.)
Post: #24
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-18-2013 12:02 AM)Kavik79 Wrote:  Lee, not to be picky....but am I reading this part correctly?

(02-17-2013 11:25 PM)asharperrazor Wrote:  Test Results
Bone dry weight: BU - 59 BD - 60
Saturated weight: BU - 66 BD - 65
Water weight in both brushes - 5 grams

If those numbers and labels are right, that would be 7 grams of water left in the BU brush vs. 5 grams left in the BD brush? I know it doesn't sound like a lot, and with a 1 gram margin of error in the scale you could be rounding it out to say it's close to equal....but if that were accurate that's a 40% increase in moisture on the BU brush....could be construed as a major contributing factor to the addition dry time
(I don't personally think so, I'm on your side that bottom down/tips up is better, just playing devil's advocate here Tongue)

Hmm, well, never said math was my strong suit. I'll have to redo the test.

Again...
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02-18-2013, 02:28 AM
Post: #25
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Hmmmm......thanks for taking the time, but need further testing, I think Smile
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02-18-2013, 08:11 AM
Post: #26
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
LOL sorry.....I've been dealing with nothing but reports and stats at work lately, where they're picky down to 3 decimal places in most instances. I'd be shot if I left a 40% margin of error Tongue

Then again, that's just numbers data, so it's easier to be accurate. I don't think there's any easy way to guarantee the same amount of water remains in two brushes, while ensuring they're reasonably wrung/shaken out and ready for air drying, other than trial and error
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02-18-2013, 08:17 AM
Post: #27
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
I have hung my brushes bristle down for over 50 years, so I think I will just keep them hanging around.
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02-18-2013, 10:44 AM
Post: #28
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Brushes in nice stands look better though ...Cool
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02-18-2013, 01:38 PM (This post was last modified: 02-18-2013 01:39 PM by asharperrazor.)
Post: #29
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Rechecked the numbers after drying out the brushes.

My math was fine, my dictation needs work. Dodgy

I redid the test to switch the brushes, just to make doubly sure. But below is the raw data.

The subjects: 2x "Prince" in Finest.

Brushes were soaked for 5 minutes and then excess water was squeezed out and equalized.

Starting weight:
Stand: 61g No stand: 60 g

Wet: 66 65
2:00 65 63
4:00 64 62
6:15 63.5 61
8:00 62.5 60.5
9:00 62 60
10:20 62 60
11:08 62 60

At the end of the 11 hours, the bottom down brush was completely dry except for some residual moisture deep down in the knot. The stand brush was still quite wet.
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02-18-2013, 02:21 PM
Post: #30
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
damn those pesky little details LOL

this data looks pretty good now. Thanks again for sharing your findings Biggrin
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02-18-2013, 03:28 PM
Post: #31
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Thanks for taking the time and effort to do this Lee. I always felt my brushes dryed slightly quicker standing them on their handles. Interesting to see the data support this.

Though of course the most important factor for their drying rate would be placing them in a well ventilated area.
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02-18-2013, 03:41 PM
Post: #32
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-16-2013 03:24 PM)asharperrazor Wrote:  Conclusion:
Bottom down is clearly faster.

Told you so!! Wink

Seriously, thanks to Lee for putting some real world data behind what many thought all along - or at least considered a toss up. Reminds me of an Alton Brown experiment on whether rinsing mushrooms made them retain too much water. Tongue
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02-18-2013, 09:13 PM
Post: #33
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Wow, Lee, thanks for conducting the experiment and i may try this myself!
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02-18-2013, 09:57 PM
Post: #34
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-18-2013 01:38 PM)asharperrazor Wrote:  Rechecked the numbers after drying out the brushes.

My math was fine, my dictation needs work. Dodgy

I redid the test to switch the brushes, just to make doubly sure. But below is the raw data.

The subjects: 2x "Prince" in Finest.

Brushes were soaked for 5 minutes and then excess water was squeezed out and equalized.

Starting weight:
Stand: 61g No stand: 60 g

Wet: 66 65
2:00 65 63
4:00 64 62
6:15 63.5 61
8:00 62.5 60.5
9:00 62 60
10:20 62 60
11:08 62 60

At the end of the 11 hours, the bottom down brush was completely dry except for some residual moisture deep down in the knot. The stand brush was still quite wet.

Sorry, revealing I'm an idiot Blush

Bottom Up brush is the brush that hangs in the stand, correct ? Blush Blush
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02-18-2013, 10:11 PM
Post: #35
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-18-2013 09:13 PM)celestino Wrote:  Wow, Lee, thanks for conducting the experiment and i may try this myself!

Why, yes, IIRC, you too just so happen to have two identical brushes.... Cool

Your experiment will probably take two whole days though. Which is nice because you get to go to sleep halfway through and take the reading in the morning. Tongue I'd have to start the experiment when I hit the hay just to make sure the brushes don't dry out while I'm sleeping.
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02-18-2013, 10:18 PM
Post: #36
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Claus I was confused at first also. I believe bottom down would be the flat part of the handle down, or bristles up. That would be consistent with the text and results.
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02-18-2013, 10:29 PM (This post was last modified: 02-18-2013 10:29 PM by asharperrazor.)
Post: #37
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-18-2013 09:57 PM)CHSeifert Wrote:  Bottom Up brush is the brush that hangs in the stand, correct ? Blush Blush

Yup. Bottom of the brush is upwards.
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02-19-2013, 05:04 AM
Post: #38
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Might just want to say badger up/badger down for us simple minded folk.
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02-19-2013, 08:47 AM
Post: #39
RE: Quick Test Bottom up/Bottom Down (to drip stand or not to drip stand)
(02-19-2013 05:04 AM)Johnny Wrote:  Might just want to say badger up/badger down for us simple minded folk.

well that's just going to confuse some of us more; since the initials are the same, but mean the exact opposite of bottom up/bottom down LOL
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02-19-2013, 09:42 AM
Post: #40
RE: Quick Test re: Bottom up/Bottom Down (to drip stand or not to drip stand)
Thanks for doing the second test. I believe the first test was flawed as the two pennies in the base of the bottom down brush allowed more hair to be exposed for evaporation. After the first test my conclusion based on the test was the more exposed hair, the faster the hair will dry.

May I assume the 2 princes had their knots set at the same depth?

I am also anxious to see the tests done with real hair instead of synthetic.
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