We swabbed 18 of these on Sunday for a project due this Friday and not a single one has any bacteria growing it. Any idea why?
1635676
Talked to Kenny over the phone. The reason is due to low temperature. The plates were incubated at room temperature around 68 F, which is too low. Advise him to place the agar plates in a make-shift incubator. Within 24 hrs, he told us that he saw colonies of bacteria.Customer Support EZ BioResearch LLC
1635677
Talked to Kenny over the phone. The reason is due to low temperature. The plates were incubated at room temperature around 68 F, which is too low. Advise him to place the agar plates in a make-shift incubator. Within 24 hrs, he told us that he saw colonies of bacteria. Customer Support EZ BioResearch LLC
1635678
Had a similar issue, I figured it was because I chose the lowest cost method of shipping (Didn't want to spend that much for a 5th grade project) and therefore they had been unrefridgerated for too long.
1635679
What temp are you culturing the plates? Make sure to put them in a warm place to speed up growth, if you do not see anything take a swab of something you know has bacteria, such as old leftovers with visible growth or your mouth to see if that will cause growth. If not then there is something wrong.
2148705
I clean mine with just soap and water. Have also placed it in a lingerie bag and thrown it in with cold water laundry. I am not aware of any antimicrobial properties.
340739
We wiped everything out prior to the initial use and I never noticed any chemical smell. Maybe something is wrong with your init.
611099
The swabs are dry and there is no cleaning fluid included. I use Eclipse from Photographic Solutions.
1525253
These were not advertised as antimicrobial. Took their word for it as I would not have purchased. The current trend to add antimicrobials to everything from hard surfaces to hand and dish soap is a mistake. Over time it will only help produce more resistant organisms. Recently heard the FDA is questioning the addition of antimicrobials to routine products.
708356
I leave it out on a clean washcloth and clean it again before use. I would be more concerned about anaerobic bacteria if it were stored in a closed and possibly damp container but you could possibly keep it in mouthwash, the kind with alcohol or something antiseptic.
206445
I'd ask the manufacturer or seller. I am guessing it has something to do with the preservative seperating?
1133486
If 1ppm solute of unknown identity went in and 59 more came out, I'd bet it's the carbon from the carbon filter. Nothing to worry about. Your water is still absolutely drinkable and mostly pure.
1770318
I called the Company to ask about this. They told me that nothing was added and nothing taken away....it 's completely natural with zero pasteurization and no other spray preservatives.....
608064
You put the water sample in the small bottle, being careful not to spill the powder in the bottle, fill to 1/2" below the top (cold water side), shake well, place on shelf and in 48 hrs, if it turns a yellow color, there's bacteria present, violet or blue, no bacteria. It does not tell you specifically which bacteria. Some reviews have reported a yellow/blue result, so it's inconclusive (my tests have all been pretty conclusive). If you get that, you might have your water tested professionally for a conclusive test. Only one test is included for each of the variants.
1076705
Have no idea, has never happened to me. Have you tried asking the manufactorer? Are you making sure you do not damage the stalks as you place the clones into the insert? I'd be interested in knowing the answer from the makers, in case I run into this problem.
357999
Sorry, I can't be helpful to you. I am having similar problems, too. The swabs DO seem to leave more lint, etc. on the filter. I had to go through the whole box of 12 both times I have used them to clean my sensor filter. Perhaps someone else will respond with an answer both of us can use.
2133784
My daughter's class grew household bacteria samples. They used the provided swabs, moistened with sterile water.
2114232
When you clean the Bio-rings "only clean half of them" at once. That will leave the good Bacteria on them to build back up.
1024749
Make sure you have tightened the probes tightly. I have used one for years and never had a problem.
1617760
That's a good question, we swabbed them after about 15 minutes after being removed from fridge and had good results.
2241070
I just put some water over a sheet I printed and it did not smear or run.....Hope this helps you, Bruce