Miracle Gro Perlite

blackcat54 · May 10, 2012

I bought a bag of Miracle Gro Perlite from HD and noticed that an 8Q bag weights 8.5lbs. A much larger bag of Perlite at my local hydroponic store weighs only 4lbs.

What's up with the weight difference?

I know the MG has a very small amount of nurtrients in it but can't see it increasing the weight all that much.

I'm perplexed!

rnewste · May 10, 2012

Perlite does NOT weigh one pound per Quart!

Someone at MG must have the weight wrong - - or that is not really Perlite in the bag.

Raybo

blackcat54 · May 10, 2012

I have a bag in front of me, it is an 8-quart size and I weighted it on my kitchen scale and it weighs 8.5lbs!

I didn't open it...thinking of returning it.

I just weighted a second bag and it weighted 5.5lbs!!!!

Same volume....3lb difference!

TomNJ · May 10, 2012

I have a bag that has at least 2 quarts left in it and it weighs just over 1 pound, including the bag. My bag does not list a weight, only 8 dry quarts or 8.8 liters. Perhaps your bags were left outside at HD and have absorbed some moisture.

TomNJ

cedarswamp · May 11, 2012

I agree with Tom, you have water weight in those bags. I bought a 4 CF bag that couldn't have weighed more than 10 LB.

blackcat54 · May 12, 2012

That questionable Perlite has been returned to HD. Replaced with Espoma Perlite. I prefer the Espoma as it has no cheap synthetic fertilizer in it.

May 10, 2012	#1
blackcat54 Tomatovillian™ Join Date: May 2012 Location: NY Posts: 25	Miracle Gro Perlite I bought a bag of Miracle Gro Perlite from HD and noticed that an 8Q bag weights 8.5lbs. A much larger bag of Perlite at my local hydroponic store weighs only 4lbs. What's up with the weight difference? I know the MG has a very small amount of nurtrients in it but can't see it increasing the weight all that much. I'm perplexed!

May 10, 2012	#3
blackcat54 Tomatovillian™ Join Date: May 2012 Location: NY Posts: 25	I have a bag in front of me, it is an 8-quart size and I weighted it on my kitchen scale and it weighs 8.5lbs! I didn't open it...thinking of returning it. I just weighted a second bag and it weighted 5.5lbs!!!! Same volume....3lb difference! Last edited by blackcat54; May 10, 2012 at 08:33 PM.

May 10, 2012	#2
rnewste Tomatovillian™ Join Date: Apr 2007 Location: Campbell, CA Posts: 4,064	Perlite does NOT weigh one pound per Quart! Someone at MG must have the weight wrong - - or that is not really Perlite in the bag. Raybo

May 10, 2012	#4
TomNJ Tomatovillian™ Join Date: May 2009 Location: Floyd VA Posts: 771	I have a bag that has at least 2 quarts left in it and it weighs just over 1 pound, including the bag. My bag does not list a weight, only 8 dry quarts or 8.8 liters. Perhaps your bags were left outside at HD and have absorbed some moisture. TomNJ

May 11, 2012	#5
cedarswamp Tomatovillian™ Join Date: Jul 2011 Location: New Jersey 7a Posts: 19	I agree with Tom, you have water weight in those bags. I bought a 4 CF bag that couldn't have weighed more than 10 LB.

May 12, 2012	#6
blackcat54 Tomatovillian™ Join Date: May 2012 Location: NY Posts: 25	That questionable Perlite has been returned to HD. Replaced with Espoma Perlite. I prefer the Espoma as it has no cheap synthetic fertilizer in it.