I currently own 16 brushes; In July of 2016 I wrote and posted the following which is in bold text in another blog.
There is no doubt in my mind that this is a topic based on opinions. But here goes. I currently have ten brushes all which with the exception of two are two band badger the other two are also badger. A few years ago this topic came up and I talked with a few people and read much verbiage regarding it. I cleaned a few of my brushes using the following method. I am not a fan of specialized products if the end result can be achieved with things I can use in my house. I used a bowl that holds about 8 oz of liquid; in it I pour approximately a teaspoon (measuring teaspoon) of white distilled vinegar (5% acidity) and then I fill the bowl with warm water. This is the same vinegar that can be used to clean out coffee makers, crusted shower heads and washing machines. And, you can put it on your salad and eat it so it is not toxic or harmful. In this bowl I soak my brush but I also move it around back and forth up and down several times; then let it stand for about 12-15 minutes. I then thoroughly rinse it several times. Then I fill the bowl up with warm water and put a very small drop of liquid dish detergent in it. Again, I soak the brush move it around back and forth up and down several times and let it sit for maybe 5 minutes. Once again I throughly rinse the brush flick it several times and let it dry.
However, I have learned that if I rinse my brush throughly cleaning does not appear to be necessary. Throughly to me means rinsing it several times under warm and then cold water, then soaking it in my bowl while I clean up the bathroom, brush my teeth, apply after shave balm and get dressed and then rinse it again. This process works for me. A while back I started smelling my dry brushes. If it had a neutral smell it was clean. If I could smell the fragrance of my last soap it was not rinsed properly.
To prove my theory to myself I did the following. I recently purchased PannaCrema, Nuavia Rossa and Blu. The first time I used Blu I used a Morris & Forndran 2 band silvertip brush. I have had this brush for almost two years and have never cleaned it. I made note of my lather performance. Then I cleaned the brush using the above procedure. Let it throughly dry for two days and used it for the first time with the Rossa. I experienced no difference at all. So, I will continue to throughly rinse my brushes which I believe is very important.
One of the things I have learned is that if I smell a dry brush and it has any oder of a soap or cream, my brush is not clean. If it is natural smelling my brush is clean. It is my opinion that where we go wrong is not completely rinsing the soap that accumulates in the area where the knot is fitted into the handle. Some knots are installed deeper into the handle then others. Soap accumulates in there and may not always be rinsed out throughly. I rinse my brushes in the following manner. I run warm water (colder than hotter) around the area where the knot fits into the handle. I then hold the brush upside down at an angle and turn it around several times making sure I start at the base and slowly move up to the top. I then squeeze it to get any remaining lather out. Then, I hold the brush at the top and wrap my index finger and thumb around that portion and gently squeeze it and run water into the top of the brush. By squeezing it, it does no damage to the knot. The water is now rinsing any accumulated lather deep into the knot. I then stand the brush on it’s handle and notice the water dripping down the handle; the water is clear. I now take a large bowl approximately 16 oz and fill it with water as I am turning the brush around and pumping it like I am churning butter. I fill the bowl at least twice. I hold the brush under water horizontally and bring it up through the water with the knot facing up so again, the water is rinsing any lather from the bottom of the brush. I then push the brush upside down in the water so it is splayed and leave it there while I clean the bathroom and get dressed. I then squeeze the brush and flick it several times to remove any accumulated water. The knot is still wet because of absorbed water. I live in Los Angeles. Very low humidity and within two hours the brush is completely dry. This whole process takes several minutes. I am sure that most of you are saying “what is he smoking”. Believe me, my brushes are completely clean and requires no further cleaning. I have a lot of money invested in these brushes and it is well worth the time and effort I spend throughly rinsing them. Once I see the Euro go down I will probably purchase several more.