Prefold Cloth Diapers Absorbency Test – Bummis vs. GroVia

GroVia and Bummis prefold cloth diapers

GroVia and Bummis prefold cloth diapers

I like prefold cloth diapers.  They’re versatile.  They’re generally natural fibers.  They’re generally pretty cheap, even for premium cloth diapers.  Plus, prefold cloth diapers are really nowhere near as scary as they seem.  You can even fold them in a variety of ways without using pins or Snappis.

I’ve got two different types of prefold cloth diapers in my stash, and I wondered how they differed.  I have some Bummis prefolds, plus a GroVia bamboo prefold that I received for testing.

My testing method is sort of pseudo-scientific.  I did my best to manage it scientifically, but there are some flaws in my experimental process.  First, I weighed the diapers on my kitchen scale so that I could get a baseline.  After weighing, I soaked the diapers in one liter of water for two minutes.  I then gave each diaper one minute to drip out the excess and then weighed for absorbency. Weighing is effective, as one gram of weight is the same as one milliliter of water.  (No worries, my fellow Americans.  I’ll convert back to imperial measurements for you!)  Finally, I gently wrung each diaper to test for compression loss and weighed again.  My wringing out process is where the scientific aspect breaks down a bit: I tried to wring each diaper out evenly, but since I was doing it by hand, there’s no way to measure or calibrate the exact amount of effort in squeezing out the water.

Bummis prefold soaking in one liter of water

Bummis prefold soaking in one liter of water

Bummis:  Bummis prefold cloth diapers are 100% organic cotton.  I have the medium size, which are for babies up to twenty pounds.  At a dry weight, they were 89g.  During the two minute soak, they managed to absorb 336mL of water, which is 1.4 cups.  (Whoa.  That’s a ton!)  After compressing, the Bummis prefold still held 270mL, or 1.14 cups of water.  They hold nearly three times their weight in water!

 

GroVia prefold soaking in one liter of water

GroVia prefold soaking in one liter of water

GroVia: GroVia prefold cloth diapers are 55% bamboo and 45% organic cotton.  I have the size two, which is the infant size.  At a dry weight, they were 95g.  During the two minute soak, the GroVia absorbed 358mL of water, which is a little over a cup and a half of water.  After compressing, the diaper held 283mL of water, or 1.19 cups of water.  That’s just a little bit less than three times the weight.

The bottom line is both prefold cloth diapers are amazing at absorbing and surviving compression.  Give them a try and let me know what you think!

Where to buy?

Cloth Diaper Addicts Amazon Store

Nicki’s Diapers

Kelly’s Closet

Cozy Bums

*As of posting, none of these stores have GroVia prefold cloth diapers, but they will!

 

 

About Suzi Satterfield

Suzi is an American ex-pat living in British Columbia. She's a cloth diaper addict, wife, mom of three, and President of the Prince George chapter of Cloth for a Cause.

Comments

  1. I don’t use cloth but that’s pretty impressive.

  2. I do not have any children currently, but when I do I will have to keep this in mind. Cloth diapers is the way to go!

  3. thank you for this post, I will have to pass it along to my friends..

  4. Interesting! Sounds like you could get longer use, then, out of the bamboo prefold since it held roughly the same amount of water, post-wring, as the cotton ones. Good to know, since they are more $$. I have some cheap store-brand cotton flats that I love because of their absorbency. If anyone is looking to try cloth diapering with the least up front investment, is say this is definitely the way to start.

  5. Loved this “scientific” method! Very helpful :) I hope to see more of those!

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